Milnor Cake Elevator Conveyor.pdf

Chapter 2 Service and Maintenance

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F0A=8=6 ) 2adbW 7PiPaSb—A traveling machine such as a shuttle can crush or entrap you if the bed or bucket descends while you are under it. The bed or bucket can descend with power off or on.

• Secure both red safety pins in accordance with the instructions furnished, then lock out and tag out power at the main machine disconnect before working under bed or bucket.

Figure 1: Safety Pin/Bar Use and Storage

Shuttle safety pins (inserted) Cobuk Safety Bar

Legend

1. Safety bar installed

2. Safety bar storage position

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20DC8>= ! ) <PRWX]T 3P\PVT 7PiPaS—Improper lubrication can damage machine components and cause the machine to malfunction.

• Do not mix petroleum and synthetic based lubricants.

• Do not use an unspecified lubricant without consulting the lubricant manufacturer.

• Do not apply grease with a pneumatic grease gun. Use only a hand-operated grease gun.

• Do not over-lubricate.

• Always clean grease fittings before adding grease. Clean off excess grease.

• Ensure that lubricants do not drip onto belts, brake shoes or drums.

F0A=8=6 " ) 4]cP]V[T P]S 2adbW 7PiPaSb—Contact with moving components normally isolated by guards, covers, and panels, can entangle and crush your limbs. These components move automatically.

• Lock out and tag out power at the main machine disconnect before servicing, or in accordance with factory service procedures.

• Do not service machine unless qualified and authorized.

������—Pump grease slowly, taking 10-12 seconds to complete each stroke. A grease gun can build up extremely high pressure which will force seals out of position and cause them to leak.

��������—Apply the quantity of grease called for in the checklist. Over-lubrication can be as damaging as under-lubrication. Where quantities are stated in strokes, one stroke of the grease gun is assumed to provide .0624 fluid oz. (1.77 grams) (by volume) of grease. Therefore, one fluid ounce (28.3 grams) of grease would be provided by 16 stokes of the grease gun.

Determine the flow rate of your grease gun by pumping one ounce into a calibrated container. If fewer than 16 stokes are required, all quantities in strokes in the chart should be reduced accordingly, and if more than 16 strokes are required, the number of strokes should be increased.

Before starting lubrication, make sure your grease gun is working and that you get a full charge of grease with every stroke.

�������������—Lubricant specifications are provided in the preventive maintenance checklist. Lubricants should be purchased locally. If a specified lubricant is not available locally, it is permissible to substitute a product that has been specified as equivalent by the lubricant manufacturer. If you cannot obtain either the specified lubricant or a valid equivalent locally, contact the Milnor Service Department for assistance.

=^cXRT # ) <PRWX]T 3P\PVT—Allowing too much chain slack when using manual operation to lower the shuttle beds for maintenance, can cause severe chain jams inside the hoist assembly, damaging the gear reducer and hoist assembly.

• Watch the chain coming out of the storage area when manually lowering the shuttle beds.

Stop when the white painted links are visible (Figure 2).

Figure 2: Chain limit

Table 1: Preventive Maintenance Checklist

Component Procedure Frequency Lubricant/Figure

Hoist chain (shuttles) Lubricate thoroughly (See machine damage notice above)

Monthly/200 hours

Procol white food lube chain and drive lubricant (or equivalent)

Inspect the chain for wear and damage. Annually

Hoist gear reducer (CL and CF1440xx only), all other models use sealed gear reducers

Check oil level. Replace all solid plugs with supplied vented plugs.

At initial start up

Mobil SHC 634 Synthetic lubricant, Figure 8

Drain oil. Clean magnetic drain plug. Refill to indicated level.

First 100 hours

Check oil levels. Add as necessary. Every 3 months

Drain oil. Clean magnetic drain plug. Refill to indicated level.

Every 6 months

Grease hoist shaft bearings Every 6 weeks Shell Alvania EP 2 (or equivalent), Figure 8

Motors (if equipped with grease fittings)

See "MSSM0274AE...Motor Grease Instructions" in this manual.

Varies Shell Alvania EP 2 (or equivalent)

Brake (Conwa and Conlo load conveyors only)

Over time, the air gap (Figure 7, item 1) increases, resulting in increased stop time.

Adjust by alternatively turning each wear adjustment screw 1/8th of a turn until the desired air gap is reached. See the tag inside the housing for more information.

Annually Shell Alvania EP 2 (or equivalent), Figure 7

Shuttle belts Check condition, tension and tracking. Adjust as necessary.

Weekly

Rail wheel grease points Slowly grease, 2 strokes - 0.12 ounces (3.54 grams)

Every 6 weeks Shell Alvania EP 2 (or equivalent), Figure 5

Cross member (shuttles) Slowly grease idler pulley, 2 strokes - 0.12 ounces (3.54 grams)

Every 6 weeks Shell Alvania EP 2 (or equivalent), Figure 3

Conveyor roller and offset drive grease points

Slowly grease, 2 strokes - 0.12 ounces (3.54 grams)

Every 6 weeks Shell Alvania EP 2 (or equivalent), Figures 6 and 4

Cylinder oil reservoir (machines with extend or retract cylinders)

Add oil as required Check level Monthly/200 hours

Shell Tellus 23 (or similar), Figure 9

Figure 3: Cross member grease point (chain removed for clarity)

Figure 4: Offset drive grease points (if so equipped)

Figure 5: Rail wheel grease point Figure 6: Conveyor roller grease point

Figure 7: Conlo and Conwa brake adjustment

Brake wear adjustments Legend

1. 11/16" air gap

2. Wear adjustment screws

Figure 8: CF40xxxx and CL40xxx motor and gear reducer maintenance points

Motor and gear reducer assembly Hoist shaft Legend

1. Hoist motor grease points

2. Gear reducer level tube

3. Hoist shaft grease point

Figure 9: Oil Reservoir (machines equipped with extend or retract air cylinders)

— End of BIVUUM01 —

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MSSM0905AE/200005AV

ÈSETTING SLACK/TIGHT CHAIN SAFETY SWITCHES

The slack\tight chain safety switches are located on the top beam of the shuttle, opposite from the hoist motor.

The upper switch senses when the chain is slack and is also used to set the lowest position of the shuttle. At initiali-zation (when the control is first energized), and each time the shuttle returns to the press, the hoist automatically lowers until the slack chain switch is actuated, then raises again until the switch is released. The lower switch senses when the chain is too tight. Some software versions test the tight chain safety switch during ini tialization by auto-matically raising the shuttle to its upper limit to verify that the switch is functioning correctly.

To set the safety switches, loosen the socket-head cap screws on both switches and position the switches away from the actuator so neither switch can come into contact with the actuator as it moves to its maximum upper and lower limits (see FIGURE 1).

NOTE: The following procedures require that the shuttle be raised and lowered manually, using either commands to the keypad on the controller or using the manual switches on the shuttle frame.

ËSetting the Slack Chain (Upper) Switch

1. Lower the shuttle until the chain is slackened. Be sure to stop the hoist motor after the chain has slackened, otherwise all the chain may be pulled out of the chain box.

2. Position the upper switch until it is depressed halfway within its total travel, then tighten the screws which se-cure it.

3. Raise the shuttle then lower it until chain goes slack. Visually confirm that the slack chain switch is actuated (when in manual mode, the hoist motor will not stop automatically when the chain becomes slack ).

ËSetting the Tight Chain (Lower) Switch

1. Lower shuttle until chain goes slack.

1. Insert safety pins in vertical rails immediately above the shuttle bed to block the bed from moving up.

2. Raise the shuttle until it stops and let the hoist motor stall for almost two seconds. This ensures that the cross member has contacted the safety pins and that the switch actuator mechanism has fully extended.

3. Mark location of the actuator.

PROPERTY DAMAGE HAZARD. Do not stall hoist motor for more than two seconds or it may burn out.

4. Position the lower switch until it is depressed halfway within its total travel, and the actuator is fully ex-tended. Then tighten the screws which secure it.

5. Lower the shuttle, then lift it again to confirm that the tight chain switch is actuated and the hoist motor stops automatically.

6. Check all mounting screws for tightness.

slack chain (upper) tight chain (lower) switch actuator

ÎFIGURE 1 (MSSM090AE)

ÎShuttle Top Beam

MSSM0905AE/200005AV (1 of 1)

ÈSETTING SLACK/TIGHT CHAIN SAFETY SWITCHES

The slack\tight chain safety switches are located on the top beam of the shuttle, opposite from the hoist motor.

The upper switch senses when the chain is slack and is also used to set the lowest position of the shuttle. At initiali-zation (when the control is first energized), and each time the shuttle returns to the press, the hoist automatically lowers until the slack chain switch is actuated, then raises again until the switch is released. The lower switch senses when the chain is too tight. Some software versions test the tight chain safety switch during ini tialization by auto-matically raising the shuttle to its upper limit to verify that the switch is functioning correctly.

To set the safety switches, loosen the socket-head cap screws on both switches and position the switches away from the actuator so neither switch can come into contact with the actuator as it moves to its maximum upper and lower limits (see FIGURE 1).

NOTE: The following procedures require that the shuttle be raised and lowered manually, using either commands to the keypad on the controller or using the manual switches on the shuttle frame.

ËSetting the Slack Chain (Upper) Switch

1. Lower the shuttle until the chain is slackened. Be sure to stop the hoist motor after the chain has slackened, otherwise all the chain may be pulled out of the chain box.

2. Position the upper switch until it is depressed halfway within its total travel, then tighten the screws which se-cure it.

3. Raise the shuttle then lower it until chain goes slack. Visually confirm that the slack chain switch is actuated (when in manual mode, the hoist motor will not stop automatically when the chain becomes slack ).

ËSetting the Tight Chain (Lower) Switch

1. Lower shuttle until chain goes slack.

1. Insert safety pins in vertical rails immediately above the shuttle bed to block the bed from moving up.

2. Raise the shuttle until it stops and let the hoist motor stall for almost two seconds. This ensures that the cross member has contacted the safety pins and that the switch actuator mechanism has fully extended.

3. Mark location of the actuator.

PROPERTY DAMAGE HAZARD. Do not stall hoist motor for more than two seconds or it may burn out.

4. Position the lower switch until it is depressed halfway within its total travel, and the actuator is fully ex-tended. Then tighten the screws which secure it.

5. Lower the shuttle, then lift it again to confirm that the tight chain switch is actuated and the hoist motor stops automatically.

6. Check all mounting screws for tightness.

slack chain (upper) tight chain (lower) switch actuator

ÎFIGURE 1 (MSSM090AE)

ÎShuttle Top Beam

Document ......... BIVSRM01 Spec Date

����!�� ��������� As-of Date

1.

This procedure requires safety harnesses, two technicians, a forklift, and a chain hoist or other suitable lifting device capable of safely supporting the weight of the motor (approximately 65 pounds - 29.5 kilograms).

2.

WARNING 1 : Fall Hazard—You can lose balance and fall from a shuttle bed.

• Permit only qualified personnel to perform these procedures.

• Use safety harness while working on shuttle.

• Insert factory supplied safety pins into shuttle beds.

• Follow procedure carefully.

Figure 1: Pin inserted through rail

1. Using a forklift, chain hoist, or other hoisting device, lift the shuttle bed(s) as close as possible to the top beam to minimize the chain weight and provide a stable work area. Install the factory supplied safety pins. Pins must be inserted completely through the side rail as shown in Figure 1. Wear a safety harness secured to the top beam or other strong support to prevent serious injury in the event of a fall from the top of the shuttle.

2. Attach one end of a suitably sized rope to the motor/secondary brake unit and run the other end over the top of a beam or other strong structure above the shuttle. Loosen the locking collar clamp screw and key set screw (Figure 4) holding the secondary brake shaft to the gear reducer. Access these items through the access ports shown in Figure 3. Remove the four motor-to-gear reducer fasteners (Figure 2, item 3). Lower motor to ground.

Figure 2: Shuttle Components

Identifing components

Legend

1. Shuttle hoist motor

2. Secondary brake

3. Motor to gear reducer fasteners (4)

4. Gear reducer

Figure 3: Removing or installing the secondary brake on the gear reducer

Access ports for locking collar Legend

1. Key set screw access port

2. Clamp screw access port

3.

A locking collar (Figure 4) connects the motor and secondary brake assemblies (Figure 2) to the gear reducer. If this locking collar is incorrectly installed, the connection between the secondary brake shaft and the gear reducer will loosen, causing the shuttle bed(s) to not elevate and/or slip.

1. Screw key set screw in until one thread is exposed (as shown in Figure 4).

2. Manually rotate the gear reducer shaft until the keyway slot is vertical (Figure 5). Slide the locking collar on the gear reducer shaft. Check that the collar cannot be rotated on the gear reducer shaft.

Figure 4: Examining the locking collar

Key set screw and clamp screw Legend

1. Key set screw

2. Clamp screw

Figure 5: Locking collar in place

Key set screw and clamp screw orientation Legend

1. Key set screw

2. Clamp screw

3. Keyway slot

Note 1: Motor and secondary brakes lock as soon as control power is restored to machine.

3. Slide the secondary brake onto motor shaft. Release both the motor and secondary brake (Figure 6), if necessary, to rotate the secondary brake shaft to match the gear reducer shaft.

Slide the brake shaft into gear reducer shaft (Figure 7). Lock both brakes at this time to prevent the shaft from rotating out of the correct position for tightening the locking collar.

4. Install and tighten the motor-to-gear reducer fasteners.

5. Tighten the clamp screw, then tighten the key set screw through the provided access ports (shown in Figure 3).

Figure 6: Identifing the secondary and motor brake releases

Top view

Legend

1. Secondary brake release

2. Motor brake release

Figure 7: Sliding secondary brake shaft into gear reducer

— End of BIVSRM01 —

MSSM0116AE/8809BV

ÈSETTING LIMIT SWITCHES

ÊLimit Switches—Including Microswitches— Will Be Damaged If Over-actuated!

Any limit switch will be damaged if it bottoms out forcefully. This can bend the rotary shaft or damage internal components and may cause the switch to stick in one position either permanently or intermittently. Be aware that an intermittently sticking switch can be mistaken for a malfunctioning microprocessor!

Limit switches must function properly to ensure the safe operation of the machine.

☞ Inspect switches regularly.

☞ Never operate a machine with a malfunctioning limit switch.

ÊSetting Switches

ËTravel of Rotary Lever or Plunger —Set switch and target so that after the switch contacts close (as de-termined by an ohmmeter), the lever or plunger will then move approximately half of its additional available travel (see FIGURE 2).

NOTE: It is impossible to determine by feel, sound, or experience at what point the switch contacts make.

The only reliable method is to use an ohmmeter. Switches may also be bench-tested, and the plunger or rotary shaft scribed to mark this point.

FIGURE 1a Rotary Lever Switch

FIGURE 1b Plunger Switch

FIGURE 1c 180° Roller Plunger

FIGURE 1d 90° Roller Plunger Switch FIGURE 2a

Rotary Lever FIGURE 2b Plunger Switches (Roller Plunger Switch Shown)ÎFIGURE 1 (MSSM0116AE)

ÎLimit Switch Types ÎFIGURE 2 (MSSM0116AE)

ÎWhere Lever or Plunger Should Stop B

B

MSSM0116AE/8809BV (1 of 2)

ÈSETTING LIMIT SWITCHES

ÊLimit Switches—Including Microswitches— Will Be Damaged If Over-actuated!

Any limit switch will be damaged if it bottoms out forcefully. This can bend the rotary shaft or damage internal components and may cause the switch to stick in one position either permanently or intermittently. Be aware that an intermittently sticking switch can be mistaken for a malfunctioning microprocessor!

Limit switches must function properly to ensure the safe operation of the machine.

☞ Inspect switches regularly.

☞ Never operate a machine with a malfunctioning limit switch.

ÊSetting Switches

ËTravel of Rotary Lever or Plunger —Set switch and target so that after the switch contacts close (as de-termined by an ohmmeter), the lever or plunger will then move approximately half of its additional available travel (see FIGURE 2).

NOTE: It is impossible to determine by feel, sound, or experience at what point the switch contacts make.

The only reliable method is to use an ohmmeter. Switches may also be bench-tested, and the plunger or rotary shaft scribed to mark this point.

FIGURE 1a Rotary Lever Switch

FIGURE 1b Plunger Switch

FIGURE 1c 180° Roller Plunger

FIGURE 1d 90° Roller Plunger Switch FIGURE 2a

Rotary Lever FIGURE 2b Plunger Switches (Roller Plunger Switch Shown)ÎFIGURE 1 (MSSM0116AE)

ÎLimit Switch Types ÎFIGURE 2 (MSSM0116AE)

ÎWhere Lever or Plunger Should Stop B

ËFree Position of Rotary Lever —Attach the rotary lever to the shaft so that, in the free position, the lever is at a right angle to the direction of relative movement between the switch and target (see FIGURE 3).

ËAngle of Switch —Set a plunger switch so that the target and plunger move parallel to each other. It will be approximately correct when properly installed on its mounting bracket, but may require fine adjustment.

With a roller plunger switch, make sure that the roller rotates in the direction that will accommodate the movement of the target (not at a right angle to the target movement). Also, be sure that a replacement switch has the roller oriented the same way as the switch it replaces (see FIGURE 5).

RIGHT!

Roller can’t absorb sideways movement of target (wrong switch used).

RIGHT!

ÎFIGURE 3 (MSSM0116AE)

ÎFree Position of Rotary Lever

ÎFIGURE 4 (MSSM0116AE)

ÎPlunger Switch Angle

ÎFIGURE 5 (MSSM0116AE)

ÎRoller Plunger Switch Angle

ËFree Position of Rotary Lever —Attach the rotary lever to the shaft so that, in the free position, the lever is at a right angle to the direction of relative movement between the switch and target (see FIGURE 3).

ËAngle of Switch —Set a plunger switch so that the target and plunger move parallel to each other. It will be approximately correct when properly installed on its mounting bracket, but may require fine adjustment.

With a roller plunger switch, make sure that the roller rotates in the direction that will accommodate the movement of the target (not at a right angle to the target movement). Also, be sure that a replacement switch has the roller oriented the same way as the switch it replaces (see FIGURE 5).

RIGHT!

Roller can’t absorb sideways movement of target (wrong switch used).

ÎFIGURE 3 (MSSM0116AE)

ÎFree Position of Rotary Lever

ÎFIGURE 4 (MSSM0116AE)

ÎPlunger Switch Angle

ÎFIGURE 5 (MSSM0116AE)

ÎRoller Plunger Switch Angle

MSSM0122AE/9204AV

ÈSETTING PHOTOSENSORS

Excessive torque when turning potentiometers to their limits will damage them.

As of this writing, Milnor® uses two types of photosensors: the Banner VALU-BEAM SM-800 Retroflective and the Banner LM3 Opposed-mode models (see FIGURES 1 and 2). Both types must be properly adjusted for light or dark operation and for sensitivity. In addition, for some functions, opposed-mode photosensors have adjust-able time delays. While these devices are set at the Milnor® factory, photosensors supplied as original equipment may require adjustment to suit local conditions, and replacement units must be set initially.

NOTE: When set for dark operation, the photosensor provides an input to the Milnor® microprocessor when the beam is blocked by an object. When set for light operation, the photosensor provides an input to the microprocessor when the object normally blocking the beam is removed.

ÊSetting Retroflective Photosensors Retroflective photosensors use a combined receiver/emitter and separate reflector to sense when an object blocks the focused light beam. These sensors have a top-mounted sensitivity indicator that flashes faster as sensitiv-ity is increased. Sensitivity and light/dark operation settings are made via potentiometers (see FIGURE 1). Most Milnor ® applications require dark operation.

1. Light/Dark Operation Potentiometer—Adjust this single-turn potentiometer fully counterclockwise if the application calls for dark operation, or fully clockwise if it calls for light operation. When turning the poten-tiometer, avoid excessive torque to prevent damage.

2. Sensitivity Potentiometer—If this potentio-me-ter is turned clockwise, sensitivity increases and the sensitivity indicator flashes more rap-idly. When the potentiometer is fully clock-wise, the sensor is most sensitive. Adjust the sensitivity by turning the potentiometer clock-wise until the indicator flashes very rapidly.

ÊSetting Opposed-mode Photosensors

SHOCK HAZARD—Electrical power can cause death or severe injury. Lock OFF and tag out power to the machine main bus before opening photosensor.

Opposed-mode sensors use two units: an emit-ter to produce an infrared beam and a receiver/logic module to sense when objects block the beam (see FIGURE 2). The emitter-type determines the beam type and range (see Table A). The receiver/logic type determines whether the receiver reads light or dark and when it provides an input to the MILNOR microprocessor (see Table B). Receiver/logic modules are equipped with a dark operation jumper for dark operation (FIGURE 3). Removing this jumper changes the sensor to light operation. Depending on the function, the receiver/logic module may also have potentiometers for On/Off-delay and Hold. An On-delay potentiometer sets the amount of time the light (or dark) beam must be seen by the receiver/logic module before the input (to the MILNOR® microprocessor) makes.

An Off-delay potentiometer sets how long the input lasts even if the beam has ceased. A Hold potentiometer sets the time the input will last.

Receiver/logic modules are provided with a sensitivity potentiometer (see FIGURE 2). If the potentiometer is turned fully counter-clockwise, the sensor is least sensitive, and the sensitivity indicator is extinguished. As the potentiometer is turned clockwise, sensitivity increases, and the indicator flashes more rapidly. When the potenti-ometer is fully clockwise, the sensor is most sensitive, and the indicator flashes so rapidly it appears steadily ON.

Adjust the sensitivity by turning the potentiometer clockwise until the indicator begins flashing very rapidly.

ÏTable A: Opposed-mode Sensor Types and Characteristics

Emitter/Logic Module Types Beam Range

E/R1 Infrared beam 150 feet (45 meters)

ED/RD1 Infrared beam 10 feet (3 meters)

EXD/RXD1 Infrared beam 30 feet (9 meters)

EV/RX1 Visible red beam 100 feet (30 meters)

EX/RX1 Infrared beam 700 feet (200 meters)

ÎFIGURE 1 (MSSM0122AE)

ÎRetroflective Photosensor (rear)

ÎFIGURE 2 (MSSM0122AE)

ÎOpposed-mode Photosensors

ÎFIGURE 3 (MSSM0122AE)

ÎExploded View of Opposed-mode Re-ceiver/Logic Module

MSSM0122AE/9204AV (1 of 2)

ÈSETTING PHOTOSENSORS

Excessive torque when turning potentiometers to their limits will damage them.

As of this writing, Milnor® uses two types of photosensors: the Banner VALU-BEAM SM-800 Retroflective and the Banner LM3 Opposed-mode models (see FIGURES 1 and 2). Both types must be properly adjusted for light or dark operation and for sensitivity. In addition, for some functions, opposed-mode photosensors have adjust-able time delays. While these devices are set at the Milnor® factory, photosensors supplied as original equipment may require adjustment to suit local conditions, and replacement units must be set initially.

NOTE: When set for dark operation, the photosensor provides an input to the Milnor® microprocessor when the beam is blocked by an object. When set for light operation, the photosensor provides an input to the microprocessor when the object normally blocking the beam is removed.

ÊSetting Retroflective Photosensors Retroflective photosensors use a combined receiver/emitter and separate reflector to sense when an object blocks the focused light beam. These sensors have a top-mounted sensitivity indicator that flashes faster as sensitiv-ity is increased. Sensitivity and light/dark operation settings are made via potentiometers (see FIGURE 1). Most Milnor ® applications require dark operation.

1. Light/Dark Operation Potentiometer—Adjust this single-turn potentiometer fully counterclockwise if the application calls for dark operation, or fully clockwise if it calls for light operation. When turning the poten-tiometer, avoid excessive torque to prevent damage.

2. Sensitivity Potentiometer—If this potentio-me-ter is turned clockwise, sensitivity increases and the sensitivity indicator flashes more rap-idly. When the potentiometer is fully clock-wise, the sensor is most sensitive. Adjust the sensitivity by turning the potentiometer clock-wise until the indicator flashes very rapidly.

ÊSetting Opposed-mode Photosensors

SHOCK HAZARD—Electrical power can cause death or severe injury. Lock OFF and tag out power to the machine main bus before opening photosensor.

Opposed-mode sensors use two units: an emit-ter to produce an infrared beam and a receiver/logic module to sense when objects block the beam (see FIGURE 2). The emitter-type determines the beam type and range (see Table A). The receiver/logic type determines whether the receiver reads light or dark and when it provides an input to the MILNOR microprocessor (see Table B). Receiver/logic modules are equipped with a dark operation jumper for dark operation (FIGURE 3). Removing this jumper changes the sensor to light operation. Depending on the function, the receiver/logic module may also have potentiometers for On/Off-delay and Hold. An On-delay potentiometer sets the amount of time the light (or dark) beam must be seen by the receiver/logic module before the input (to the MILNOR® microprocessor) makes.

An Off-delay potentiometer sets how long the input lasts even if the beam has ceased. A Hold potentiometer sets the time the input will last.

Receiver/logic modules are provided with a sensitivity potentiometer (see FIGURE 2). If the potentiometer is turned fully counter-clockwise, the sensor is least sensitive, and the sensitivity indicator is extinguished. As the potentiometer is turned clockwise, sensitivity increases, and the indicator flashes more rapidly. When the potenti-ometer is fully clockwise, the sensor is most sensitive, and the indicator flashes so rapidly it appears steadily ON.

Adjust the sensitivity by turning the potentiometer clockwise until the indicator begins flashing very rapidly.

ÏTable A: Opposed-mode Sensor Types and Characteristics

Emitter/Logic Module Types Beam Range

E/R1 Infrared beam 150 feet (45 meters)

ED/RD1 Infrared beam 10 feet (3 meters)

EXD/RXD1 Infrared beam 30 feet (9 meters)

EV/RX1 Visible red beam 100 feet (30 meters)

EX/RX1 Infrared beam 700 feet (200 meters)

ÎFIGURE 1 (MSSM0122AE)

ÎRetroflective Photosensor (rear)

ÎFIGURE 2 (MSSM0122AE)

ÎOpposed-mode Photosensors

ÎFIGURE 3 (MSSM0122AE)

ÎExploded View of Opposed-mode Re-ceiver/Logic Module

ÏTable B: Opposed-mode Receiver/Logic Module Types and Characteristics

NOTE1: On-delay is the time delay before an input (to the MILNOR® microprocessor) is made.

NOTE 2: Hold is the length of time the input (to the MILNOR® microprocessor) is made.

Receiver/Logic Module type

The logic module provides an input to the MILNOR® microprocessor when it sees any of the following:

LM1 a light.

LM2 a change from light to dark. The input continues until the next light-to-dark change.

LM3 dark (if dark operation jumper installed) or light (if dark operation jumper removed).

LM4-2 a change from light to dark (if dark operation jumper installed) or a change from dark to light (if dark operation jumper removed).

LM4-2NR same as LM4-2 above, but the input (to the Milnor® microprocessor) will hold (continue) for an adjustable time before the logic module will see the next change.

LM5 a steady light (or dark) for an adjustable on-delay time.

LM5R the same as LM5 above, but the input (to the Milnor® microprocessor) will hold for an adjustable time.

LM5-14 a light (or dark) that lasts more than the adjustable on-delay time. The input (to the Milnor® microprocessor) will also hold for an adjustable time even if the light (or dark) ceases.

LM5T a light (or dark). The input (to the Milnor® microprocessor) will hold for an adjustable time then end, even if the light (or dark) continues.

LM6-1 a light (or dark). The interval between lights (or darks) is calculated and compared to an adjustable reference time. The input (to the Milnor® microprocessor) ends if the reference time is exceeded. Alternately, the module can be adjusted so that the input ends if the interval between light (or dark) drops below the reference time.

LM8 a light (or dark) past an adjustable on-delay time. If the light (or dark) continues past the on-delay time, the input (to the Milnor® microprocessor) makes for an adjustable hold time. If the light (or dark) still remains at the end of the hold time, the input (to the Milnor® microprocessor) ends, and the on-delay time starts over.

LM8-1 light (or dark) past an adjustable on-delay time. The input to the Milnor® microprocessor makes for an adjustable hold time then ends.

LM8A light (or dark) past an adjustable on-delay time.

LM10 five dark to light transitions. The input (to the Milnor® microprocessor) remains made for five additional light to dark transitions, then ends.

Ï

THIS SPACE

INTENTIONALLY

BLANK

Fastener Torque Requirements

PELLERIN MILNOR CORPORATION

BIUUUM04 (Published) Book specs- Dates: 20080506 / 20080506 / 20080506 Lang: ENG01 Applic: UUU

Fastener Torque Requirements Torque requirements for other fasteners are specified in the specific document which describes the assembly. If fastener torque specifications or threadlocking compound requirements in an assembly document vary from the specifications in this document, use the assembly document.

Figure 1: Common Bolts Used in Milnor Equipment

Bolt Head Identifying Marks Legend

A. SAE Grades 1 and 2, ASTM A307, and stainless steel B. ASTM A354 Grade BC C. SAE Grade 5, ASTM A449 D. SAE Grade 8 and ASTM A354 BD

1. Torque Values The tables below list the standard size, grade, threadlocking compound, and torque requirements for fasteners commonly used on Milnor® equipment.

Note 1: Data derived from Pellerin Milnor® Corporation “Bolt Torque Specification” (bolt_torque_milnor.xls/2002096).

1.1. Carbon Steel Fasteners

1.1.1. Without Threadlocking Compound

Table 1: Torque Values for Dry Fasteners 5/16-inch and Smaller

Bolt Grade Grade 2 Grade 5 Grade 8 Grade BC

Bolt Size Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m 1/4 x 20 66 7 101 11 143 16 126 14 1/4 x 28 76 9 116 13 163 18 -- -- 5/16 x 18 136 15 209 24 295 33 258 29 5/16 x 24 150 17 232 26 325 37 -- --

Table 2: Torque Values for Dry Fasteners Larger Than 5/16-inch Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 20 27 31 42 44 59 38 52 3/8 x 24 23 31 35 47 50 68 -- -- 7/16 x 14 32 43 49 66 70 95 61 83 7/16 x 20 36 49 55 75 78 105 -- -- 1/2 x 13 49 66 75 102 107 145 93 126 1/2 x 20 55 75 85 115 120 163 -- -- 9/16 x 12 70 95 109 148 154 209 134 182 9/16 x 18 78 106 121 164 171 232 -- -- 5/8 x 11 97 131 150 203 212 287 186 252 5/8 x 18 110 149 170 231 240 325 -- -- 3/4 x 10 172 233 266 361 376 510 329 446 3/14 x 16 192 261 297 403 420 569 -- -- 7/8 x 9 167 226 429 582 606 821 531 719

7/8 x 14 184 249 473 641 668 906 -- -- 1 x 8 250 339 644 873 909 1232 796 1079 1 x 12 274 371 704 954 994 1348 -- -- 1 x 14 281 381 723 980 1020 1383 -- --

1 1/8 x 7 354 480 794 1077 1287 1745 1126 1527 1 1/8 x 12 397 538 891 1208 1444 1958 -- -- 1 1/4 x 7 500 678 1120 1519 1817 2464 1590 2155

1 1/4 x 12 553 750 1241 1682 2012 2728 -- -- 1 3/8 x 6 655 888 1469 1992 2382 3230 2085 2827

1 3/8 x 12 746 1011 1672 2267 2712 3677 -- -- 1 1/2 x 6 869 1178 1949 2642 3161 4286 2767 3751

1 1/2 x 12 979 1327 2194 2974 3557 4822 -- --

Table 3: Torque Values for Plated Fasteners 5/16-inch and Smaller Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m Pound-Inches N-m 1/4 x 20 49 6 76 9 107 12 95 11 1/4 x 28 56 6 88 10 122 14 -- -- 5/16 x 18 102 12 156 18 222 25 193 22 5/16 x 24 113 13 174 20 245 28 -- --

Table 4: Torque Values for Plated Fasteners Larger Than 5/16-inch Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 15 20 23 31 33 44 29 38 3/8 x 24 17 23 26 35 37 49 -- -- 7/16 x 14 24 32 37 50 52 71 46 61 7/16 x 20 27 36 41 55 58 78 -- -- 1/2 x 13 37 49 56 76 80 106 70 93 1/2 x 20 41 55 64 85 90 120 -- -- 9/16 x 12 53 70 81 110 115 153 101 134 9/16 x 18 59 79 91 122 128 174 -- -- 5/8 x 11 73 97 113 150 159 212 139 186 5/8 x 18 83 110 127 172 180 240 -- -- 3/4 x 10 129 173 200 266 282 376 246 329 3/14 x 16 144 192 223 297 315 420 -- -- 7/8 x 9 125 166 322 430 455 606 398 531

7/8 x 14 138 184 355 474 501 668 -- -- 1 x 8 188 250 483 644 682 909 597 796 1 x 12 205 274 528 716 746 995 -- -- 1 x 14 210 280 542 735 765 1037 -- --

1 1/8 x 7 266 354 595 807 966 1288 845 1126 1 1/8 x 12 298 404 668 890 1083 1444 -- -- 1 1/4 x 7 375 500 840 1120 1363 1817 1192 1590

1 1/4 x 12 415 553 930 1261 1509 2013 -- -- 1 3/8 x 6 491 655 1102 1470 1787 2382 1564 2085

1 3/8 x 12 559 758 1254 1672 2034 2712 -- -- 1 1/2 x 6 652 870 1462 1982 2371 3161 2075 2767

1 1/2 x 12 733 994 1645 2194 2668 3557 -- --

1.1.2. With Threadlocking Compound

Table 5: Threadlocking Compound Selection by Bolt Size

Bolt Size LocTite Product 1/4" 1/4" – 5/8" 5/8" – 7/8" 1" +

LocTite 222 OK LocTite 242 OK LocTite 262 OK LocTite 272 High temperature LocTite 277 OK

Table 6: Torque Values for Applications of LocTite 222 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC

Bolt Size Pound-inches N-m Pound-inches N-m Pound-inches N-m Pound-inches N-m

1/4 x 20 60 7 96 11 132 15 108 12 1/4 x 28 72 8 108 12 144 16 -- --

Table 7: Torque Values for Applications of LocTite 242 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 5/16 x 18 11 15 17 23 25 34 22 30 5/16 x 24 13 18 19 26 27 37 27 37 3/8 x 16 20 27 31 42 44 60 38 52 3/8 x 24 23 31 35 47 50 68 -- -- 7/16 x 14 32 43 49 66 70 95 61 83 7/16 x 20 36 49 55 75 78 106 -- -- 1/2 x 13 49 66 75 102 107 145 93 126 1/2 x 20 55 75 85 115 120 163 -- -- 9/16 x 12 70 95 109 148 154 209 134 182 9/16 x 18 78 106 121 164 171 232 -- -- 5/8 x 11 97 132 150 203 212 287 186 252 5/8 x 18 110 149 170 230 240 325 -- --

Table 8: Torque Values for Applications of LocTite 262 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/4 x 10 155 210 240 325 338 458 296 401 3/4 x 16 173 235 267 362 378 512 -- -- 7/8 x 9 150 203 386 523 546 740 477 647

7/8 x 14 165 224 426 578 601 815 -- --

Table 9: Torque Values for Applications of LocTite 272 (High Temperature) Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m

1 x 8 350 475 901 1222 1272 1725 1114 1510 1 x 12 383 519 986 1337 1392 1887 -- -- 1 x 14 393 533 1012 1372 1428 1936 -- --

1-1/8 x 7 496 672 1111 1506 1802 2443 1577 2138 1-1/8 x 12 556 754 1247 1691 2022 2741 -- -- 1-1/4 x 7 700 949 1568 2126 2544 3449 2226 3018 1-1/4 x 12 774 1049 1737 2355 2816 3818 -- -- 1-3/8 x 6 917 1243 2056 2788 3335 4522 2919 3958 1-3/8 x 12 1044 1415 2341 3174 3797 5148 -- -- 1-1/2 x 6 1217 1650 2729 3700 4426 6001 3873 5251 1-1/2 x 12 1369 1856 3071 4164 4980 6752 -- --

Table 10: Torque Values for Applications of LocTite 277 Bolt Grade

Grade 2 Grade 5 Grade 8 Grade BC Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m Pound-feet N-m

1 x 8 325 441 837 1135 1181 1601 1034 1402 1 x 12 356 483 916 1242 1293 1753 -- -- 1 x 14 365 495 939 1273 1326 1798 -- --

1-1/8 x 7 461 625 1032 1399 1674 2270 1464 1985 1-1/8 x 12 516 700 1158 1570 1877 2545 -- -- 1-1/4 x 7 650 881 1456 1974 2362 3202 2067 2802 1-1/4 x 12 719 975 1613 2187 2615 3545 -- -- 1-3/8 x 6 851 1154 1909 2588 3097 4199 2710 3674 1-3/8 x 12 970 1315 2174 2948 3526 4781 -- -- 1-1/2 x 6 1130 1532 2534 3436 4110 5572 3597 4877 1-1/2 x 12 1271 1723 2852 3867 4624 6269 -- --

1.2. Stainless Steel Fasteners

Table 11: Torque Values for Stainless Steel Fasteners 5/16-inch and Smaller

316 Stainless 18-8 Stainless 18-8 Stainless with

Loctite 767 Nominal Bolt Size

Pound- Inches N-m

Pound- Inches N-m

Pound- Inches N-m

1/4 x 20 79 9 76 9 45 5 1/4 x 28 100 11 94 11 56 6 5/16 x 18 138 16 132 15 79 9 5/16 x 24 148 17 142 16 85 10

Table 12: Torque Values for Stainless Steel Fasteners Larger Than 5/16-inch

316 Stainless 18-8 Stainless 18-8 Stainless with

Loctite 767 Bolt Size Pound-feet N-m Pound-feet N-m Pound-feet N-m 3/8 x 16 21 28 20 27 12 16 3/8 x 24 23 31 22 29 13 18 7/16 x 14 33 44 31 42 19 25 7/16 x 20 35 47 33 45 20 27 1/2 x 13 45 61 43 58 26 35 1/2 x 20 47 64 45 61 27 37 9/16 x 12 59 81 57 77 34 46 9/16 x 18 66 89 63 85 38 51 5/8 x 11 97 131 93 125 56 75 5/8 x 18 108 150 104 141 62 84 3/4 x 10 132 179 128 173 77 104 3/4 x 16 130 176 124 168 75 101 7/8 x 9 203 275 194 263 116 158

7/8 x 14 202 273 193 262 116 157 1 x 8 300 406 287 389 172 233 1 x 14 271 367 259 351 156 211

1-1/8 x 7 432 586 413 560 248 336 1-1/8 x 12 408 553 390 529 234 317 1-1/4 x 7 546 740 523 709 314 425 1-1/4 x 12 504 683 480 651 288 390 1-1/2 x 6 930 1261 888 1204 533 722 1-1/2 x 12 732 992 703 953 422 572

2. Preparation WARNING 1 : Fire Hazard—Some solvents and primer products are flammable.

• Use in a well ventilated area.

• Do not use flammable products near ignition sources.

1. Clean all threads with a wire brush, a tap, or a die.

2. Degrease the fasteners and the mating threads with a cleaning solvent. Wipe the parts dry.

Note 2: LocTite 7649 Primer N™ will remove grease from parts, but it costs more than a standard organic or petroleum solvent.

3. Prime the fasteners and the mating threads with LocTite 7649 Primer N™ or equal. Allow the primer to dry for at least one minute.

3. Application of Threadlocking Compound CAUTION 2 : Malfunction Hazard—Improper application of threadlocking compounds may result in fasteners becoming loose from impact, heat, or vibration. Loose fasteners can cause the equipment to malfunction.

• Read and follow the threadlocking compound manufacturer's instructions and warnings.

Apply threadlocking compound to the thread engagement areas of fasteners and mating threads only.

Figure 2: Blind Hole

Application Coverage

Legend A. No threadlocking compound here B. Apply here C. Fill all gaps with threadlocking compound

3.1. Blind Holes

1. Apply several drops of threadlocking compound down the female threads to the bottom of the hole.

2. Apply several drops of threadlocking compound to the bolt.

3. Tighten bolt to value shown in the appropriate table (Table 5 through Table 11).

3.2. Through Holes

1. Insert bolt through assembly.

2. Apply several drops of threadlocking compound to the bolt thread area that will engage the nut.

3. Tighten bolt to value shown in the appropriate table (Table 5 through Table 11).

Figure 3: Through Hole

Application Legend

A. No threadlocking compound here B. Cover this area

x. Nut depth

3.3. Disassembly—For low-strength and medium-strength products, disassemble with hand tools.

For high-strength products, apply localized heat for five minutes. Disassemble with hand tools while the parts are still hot.

Figure 4: Disassembly

Use Localized Heat Legend

A. Soldering gun heating small fastener B. Torch heating large fastener

— End of BIUUUM04 —