Milnor Press inspection criteria.pdf

Chapter 3. Routine Maintenance

PELLERIN MILNOR CORPORATION

Chapter 3 Routine Maintenance

BIUUUM09 (Published) Book specs- Dates: 20170817 / 20170817 / 20170817 Lang: ENG01 Applic: PPB

3.1. Routine Maintenance—1-Station Press

This document uses Simplified Technical English. Learn more at http://www.asd-ste100.org.

Do the maintenance in Section 3.1.2 “Maintenance Summary” to make sure that the machine is safe, keeps the warranty, and operates correctly. This will also decrease repair work and unwanted shutdowns. Speak to your dealer or Milnor if repairs are necessary.

WARNING 17 : Risk of severe injury—Mechanisms can pull in and mutilate your body.

• You must be approved by your employer for this work.

• Use extreme care when you must examine components in operation. Remove power from the machine for all other work. Obey safety codes. In the USA, this is the OSHA lockout/tagout (LOTO) procedure. More local requirements can also apply.

• Replace guards and covers that you remove for maintenance.

3.1.1. How To Show the Maintenance On a Calendar

If you use software to keep the maintenance schedule for your plant, add the items in Section

3.1.2 to that schedule. If not, you can put marks on a calendar that work with the tables in Section

3.1.2. The marks are the numbers 2, 3, 4, 5, and 6. It is not necessary to show the number 1 (items you do each day) on the calendar. The number 2 = items you do each 40 to 60 hours, 3 = each 200 hours, 4 = each 600 hours, 5 = each 1200 hours, and 6 = each 2400 hours. These are the "Mark" numbers at the top of the narrow columns on the left of each table in Section 3.1.2.

Table 1 shows where to put the marks on a calendar. For example, if your machine operates between 41 and 60 hours each week, the first three marks are 2, 2, and 3. Put these marks on the first, second, and third weeks after the machine starts operation. If you do routine maintenance on a given day of the week, put the mark on that day of each week. Continue to put marks on the subsequent weeks. It can be necessary to do the 40 to 60 hour (2) maintenance more than one time each week. If the machine operates between 61 and 100 hours, put a 2 on two days of the week. If the machine operates 101 or more hours, put a 2 on three days of the week.

On each date with a 3, do the items with an x in the 3 or the 2 column of each table in Section

3.1.2. On each date with a 4, do the items with an x in the 4, 3, or 2 column. Continue this pattern.

Table 1: Where to Put Marks On a Calendar

Hours / Week

Week Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Up to 40 2 2 2 2 3 2 2 2 2 3 2 2 2 2 4 2 2 2 2 3 2 2 2 2 3 2 2 2 2 5 41 - 60 2 2 3 2 2 2 3 2 2 4 2 2 3 2 2 2 3 2 2 5 2 2 3 2 2 2 3 2 2 4 61 - 80 2 2 3 2 3 2 4 2 2 3 2 2 3 2 5 2 3 2 2 3 2 4 2 2 3 2 2 3 2 6 81 - 100 2 3 2 3 2 4 2 3 2 3 2 5 2 3 2 3 2 4 2 3 2 3 2 6 repeat 101 - 120 2 3 2 3 4 2 3 2 3 5 2 3 2 3 4 2 3 2 3 6 repeat 121 - 140 2 3 2 3 4 3 2 3 5 2 3 2 3 4 3 2 3 6 repeat Hours / Week

Week Number, continued 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Up to 40 2 2 2 2 3 2 2 2 2 3 2 2 2 2 4 2 2 2 2 3 2 2 2 2 3 2 2 2 2 6 41 - 60 2 2 3 2 2 2 3 2 2 6 repeat

3.1.2. Maintenance Summary

The tables in this section give the routine maintenance items for your machine. Each table is for one type of procedure (example: apply grease to bearings and bushings). The top of the table gives the general procedure. The "More Data" column gives special instructions if necessary.

* If the machine operates more than 12 hours each day, do the "day" items two times each day.

Do the other items at the given hours or on the days that you show on a calendar (see Section 1).

Do all items in all tables for the maintenance intervals that apply (for example, day, 40 to 60 hours, and 200 hours).

Tip: The sections that follow the maintenance summary give more data about the maintenance items.

After you know this data, it is only necessary to look at the summary to do the maintenance.

Table 2: Guards and Related Components

Examine. If a component is damaged, missing, or not set, correct this immediately to prevent injury.

Mark Do this each Component More Data 1 2 3 4 5 6 x day* guards, covers Speak to your dealer or Milnor for replacement components. x day* safety placards x 200 hours fasteners Fasteners must be tight.

x day* safety stands, bars or pins

(painted red) Speak to your dealer or Milnor for replacement components.

x day* maintenance key switch See Figure 11. Must be set to "Safe Operation" x 200 hours anchor bolts and grout Grout must be good. Bolts must be tight.

x day* emergency stop mechanism See Supplement 3. Do a test of the control.

x 40 to 60 hours safety circuit for the gates in the fence that goes around the path of the shuttle conveyor

See Supplement 4. Do a test of the circuit. If it does not operate correctly, repairs are necessary. This circuit is provided by others.

Table 3: Filters, Screens, and Sensitive Components

Remove contamination from these components to prevent damage and unsatisfactory performance.

Mark Do this each Component

More Data. See also Section 3.1.3 “How to Remove Contamination” 1 2 3 4 5 6 x 40 to 60 hours inverter fans, vents, filters See Figure 6. Keep good air flow.

x 600 hours motors Keep good air flow.

x 2400 hours entire machine Remove excessive dust and dirt.

x 200 hours strainer(s) for air inlet See Figure 7 x day* photoeyes See Figure 9 x 2400 hours proximity switches See Figure 10 x day* air filter for oil cooler

See Figure 12. Do not remove the filter. Use an air hose at an angle to remove dust.

x 200 hours See Figure 12. Remove the filter. Use a water hose to remove contamination from the filter.

x 600 hours oil filter for hydraulic tank See Figure 12. Replace the used with a new one.

x 600 hours re-circulation oil filter for hydraulic tank—MP1A_ models only.

See Figure 12. Replace the used with a new one.

-- in-tank strainers and filter screen

Maintenance is necessary only if pump cavitation or high oil temperature occurs.

Speak to your dealer or Milnor.This is not routine maintenance.

x 2400 hours air filter for hydraulic tank See Figure 12. Replace the used with a new one.

x day* lint screen and sump for return water pump

See Figure 15 x day* conveyor bed Remove contamination with a water hose.

x day* belt scraper See Figure 15. Remove contamination from between the scraper and the belt.

x 200 hours belt scraper tray See Figure 15. Remove material from tray.

x 200 hours air intake areas Inspect for, and remove any materials that may block air flow.

Table 4: Fluid Containers

Examine. Add fluid if necessary and keep components clean to prevent damage.

Mark

Do this each Component More Data. See also Section 3.1.4 “Lubricant Identification and Procedures” 1 2 3 4 5 6 x day* hydraulic oil

See Supplement 6 and Figure 12. Examine the oil level and temperature. Add oil 68 (Table 10) if necessary. If the temperature is higher than 140° F (60° C), maintenance can be necessary Speak to your dealer or Milnor.

x 40 to 60 hours See Supplement 7. Examine the oil for contamination. Replace with oil 68 (Table 10) if necessary.

x 2400 hours See Supplement 7. Get a sample of oil tested.

Replace with oil 68 (Table 10) if necessary.

Table 5: Components that Become Worn

Examine. Tighten or replace if necessary, to prevent shutdowns and unsatisfactory performance.

Speak to your dealer for replacement parts

Mark Do this each Component More Data

1 2 3 4 5 6 x 200 hours tubes and hoses Examine hoses and hose connections for leaks. See Supplement 8 for hydraulic hoses.

x day* press diaphragm It can be necessary to replace a worn or damaged diaphragm. Speak to your dealer or Milnor.This is not routine maintenance.

x 200 hours conveyor belt See Figure 15. Maintenance is necessary if the belt is damaged, very worn, loose, or rubs against the side of the bed. Speak to your dealer or Milnor.This is not routine maintenance.

Table 6: Bearings and Bushings. See Table 7 for Motors.

Apply grease to these components to prevent damage.

Mark

Do this each Component More Data. See also Section 3.1.4 “Lubricant Identification and Procedures” 1 2 3 4 5 6 x 200 hours conveyor bearings on motor end

See Figure 15. Add 0.12 oz. (3.54 mL) of grease EPLF2 (Table 10).

Table 7: Motor Grease Schedule. Use the data in Section 3.1.4.2 to complete this table.

Motor Identification (example: main drive)

Interval Quantity Dates When Grease is Added Years Hours fl oz mL

Table 8: Mechanisms and Settings

Make sure mechanisms are serviceable and settings are correct to prevent unsatisfactory performance.

Mark Do this each Component More Data 1 2 3 4 5 6 x 2400 hours controller circuitry Examine wiring and connections in electrical boxes. Look for corrosion, loose connections.

See Section 3.1.3 x 200 hours compressed air mechanisms See Supplement 2, Figure 8 x 40 to 60 hours discharge door pressure See Figure 14. Value: 35 - 40 PSI (241 - 276 kPa) Speak to your dealer or Milnor.This is not routine maintenance.

x day* hydraulic oil filter pressure See Figure 12. Maximum: 25 PSI (172 kPa).

x day* conveyor belt alignment mechanism Conveyor belt must not rub against side of bed.

x day* receiving chute and can These components must stay level when they move up and down.

x day* diaphragm and platten These components must not rub hard against the can.

Speak to your dealer or Milnor.This is not routine maintenance. Pressures are given in pounds per square inch and (bar).

x day* system pressure 4600 (317) x day* idle pressure 400 (28) x day* ram relief pressure 1200 (83) x day* can relief pressure 800 (55) x 40 to 60 hours prefill pilot pressure 1200 (83) x 40 to 60 hours booster pump pressure MP1556_ models = 5230 (361)

MP1640_ models = 5370 (370) MP1656_ models = 4964 (342) MP1A50_ models = 5750 (396)

3.1.3. How to Remove Contamination

Table 9: Contamination Types, Cleaning Agents, and Procedures

Material or Component

Usual Contamination

Example Cleaning Agent More Data machine housing dust, dirt — compressed air or shop vacuum

Air—no more than 30 psi (207 kpa). Do not push dust in mechanisms.

fins and vents on electrical components dust motors, inverters, braking resistors shop vacuum, soft bristle brush, canned air for electrical components

Do not push dust in mechanisms.

electric box interior dust all electric boxes electrical connections corrosion, varnish spade connector, molex connector, plug-in relay spray solvent for electrical components

Disconnect then connect it again. Use solvent if the bad connection continues.

electronic sensors dust photoeye lens, reflector, laser, proximity switch, temperature probe none Use a clean, soft, dry cloth.

dirt warm water with soap, then water flush Use clean, soft cloths.

stainless steel chemical spill shell, supply injector water Use a hose to flush the chemical supply from the surface fully. Do not get water on electrical components or mechanisms.

300 series stainless steel chemical corrosive attack shell interior, cylinder pickling and passivation

Speak to your dealer or Milnor.This is not routine maintenance.

painted metal, unpainted aluminum dust, dirt, grease frame members warm water with soap, then water to flush

Use clean cloths. Do not get water in electrical components.

rubber dirt, oil, grease drive belts, hoses warm water with soap, then water to flush

Use clean cloths. Flush fully. Oil or soap must not stay on drive belts. Make sure that drive belts are serviceable.

clear plastic, acrylic discoloration (yellowing) compressed air filter bowl, visual flow meter warm water with soap, then water to flush, then acrylic cleaner. Do not use ammonia.

Use only the necessary cleaning agents. Wash and rinse with clean, soft cloths. Follow instructions on acrylic cleaner.

glass discoloration (yellowing) door glass, site glass ammonia and water solution and water rinse then acetone

Use clean, soft cloths. Use only the necessary cleaning agents. If necessary, soak in cleaner.

soft air filter, lint filter, dust, lint on inverter electric box door, in air line filter bowl, in dryers shop vacuum Replace the used with a new filter when the vacuum cannot remove contamination.

rigid strainers, screens for water, steam mineral particles in water line, y-strainer water Use a rigid bristle brush. Flush with a flow of water.

rigid strainers, screens for oil metal shavings in hydraulic line carburetor cleaner or equivalent solvent

Soak. Use a rigid bristle brush.

steel drive components dirt, hardened lubricant bearings, roller chains, sprockets, gears carburetor cleaner or equivalent solvent

Soak. Use a cloth or soft bristle brush.

COttman Text Box

1. Clean, Blow Down, Remove Contamination

3.1.4. Lubricant Identification and Procedures

Table 10 identifies the lubricant for each lubricant code given in the maintenance summary. Get these or equivalent lubricants from from your local lubricant supplier.

When you add grease, always use the procedures given in Section 3.1.4.1. When you add grease to motors, also use the procedures given in Section 3.1.4.2.

CAUTION 18 : Risk of damage—Bad lubricant will decrease the life of components.

• Make sure that all equipment and fittings used to apply lubricants are clean.

• Use only the given lubricants or equivalent lubricants that have the same specifications.

Table 10: Lubricant Identification

Code Type Trademark Name Application Example EM grease Mobil Polyrex EM or as given on the motor nameplate motor bearings

EPLF2 grease Shell Alvania EP (LF) Type 2 drive shaft bearings and bushings, ball joints, chain drives

68 oil Shell Tellus 68 hydraulic system

3.1.4.1. Grease Gun Procedures

CAUTION 19 : Risk of damage—Hydraulic pressure can push out seals and push grease into unwanted areas (example: motor windings).

• Use a hand grease gun. A power grease gun gives too much pressure.

• Know the quantity of grease your grease gun gives each cycle (each stroke).

• Operate the grease gun slowly (10 to 12 seconds for one cycle).

• Add only the specified quantity. Stop if new grease come out of a drain port or other opening.

• Remove spilled grease from belts and pulleys.

The tables give grease quantities in fluid ounces (fl oz) and milliliters (mL). You can also use grease gun cycles (strokes). A cycle is each time that you pull the trigger. One cycle is usually approximately 0.06 fl oz (1.8 mL). Your grease gun can give more or less than this. Measure the output of your grease gun as follows:

1. Make sure that the grease gun operates correctly.

2. Operate the grease gun to put grease into a small container with fluid ounce or milliliter increments. Pull the trigger fully and slowly.

3. Add a sufficient quantity of grease to measure accurately. Count the number of cycles of the grease gun (the number of times that you pull the trigger).

4. Calculate the quantity for each cycle of the grease gun.

Example: 2 fl oz / 64 cycles = 0.031 fl oz for each cycle

Example: 59 mL / 64 cycles = 0.92 mL for each cycle

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2. Grease and Lubricate all fittings

3.1.4.2. Procedures for Motors—If a motor on your machine does not have grease fittings, no grease maintenance is necessary. If a motor on your machine has grease fittings, it is necessary to add grease. But the interval is usually longer than for other maintenance. Table 11 gives motor grease intervals and quantities for motors with specified frame sizes and speeds. You get this data from the motor nameplate. Use Table 7 in Section 3.1.2 to record the data for the motors on your machine.

Figure 5: Motor Grease Maintenance Conditions

Grease Fitting and Grease Relief Grease Fitting and Grease Drain

Motor Nameplate Grease Fittings, No Reliefs or Drains

Legend

1. Grease fitting

2. Grease relief. Do not remove.

3. Grease drain plug. Remove first.

4. RPM (motor speed). This example is 1465

RPM at 50 Hz and 1765 RPM at 60 Hz.

5. NEMA (IEC) frame size. Example: 256T

CAUTION 20 : Risk of damage—You can push grease into the windings and burn out the motor if you fail to remove the grease drain plugs.

• If the motor has grease drain plugs, remove them before you add grease. If the motor has grease relief fittings, it is not necessary to remove them.

Apply grease as follows:

1. Operate the machine or use manual functions to operate the motor until it is warm.

2. Remove power from the machine.

3. If the motor has grease drain plugs, remove them. See caution statement 20 .

4. Add grease EM (Table 10) with the motor stopped. If the motor with the nameplate in Figure

5 operates at 60 Hz, the specified grease quantity for each grease fitting is 0.65 fl oz (18.4 mL).

5. If the motor has a grease drain plugs, operate the machine or use manual functions to operate the motor for two hours. Replace the drain plug.

Table 11: Motor Grease Intervals and Quantities. Use grease EM (Table 10)

On Motor Nameplate (see Figure 5) Interval Quantity

NEMA (IEC)

Frame Size

RPM Less Than or Equal To

Years Hours Fluid

Ounces mL

Up to 210 (132)

900 5.5 11000

0.34 9.5 1200 4.5 9000 1800 3 6000 3600 1.5 3000

>210 to 280 (132 to 180)

900 4.5 9000

0.65 18.4 1200 3.5 7000 1800 2.5 5000 3600 1 2000

>280 to 360 (180 to 200)

900 3.5 7000

0.87 24.6 1200 3 6000 1800 2 4000 3600 0.5 1000

>360 to 5000 (200 to 300)

900 2.5 5000

2.23 63.2 1200 2 4000 1800 1 2000 3600 0.5 1000

3.1.5. Maintenance Components—Machines and Controls Group

[Document BIUUUM10]

Figure 6: Electric Box and Inverter. These are examples. Your machine can look different.

30022X_ Washer-extractor 48040F_ Washer-extractor 76039 CBW Tunnel Washer

1. Air filter

2. Fan on elecrtric box door. Tip: Put streamers in front of the fan to make sure the fan operates.

3. Inverter cooling vanes and vents. See caution statement 21 .

4. Braking resistor, if applicable

CAUTION 21 : Risk of damage—The inverter will burn out without sufficient airflow.

• Keep fans, filter, vents, and braking resistors clean.

Figure 7: Compressed Air Inlet Strainers. These are examples. Your machine can look different.

T-Strainer. Outside machine frame on some models.

T-Strainer. Inside machine frame on some models.

Y-strainer. Used on some models

1. See caution statement 22 . Remove plug to remove strainer.

2. Compressed air in.

CAUTION 22 : Risks of injury and damage—

• Close the external shutoff valve and release remaining pressure before you do maintenance.

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3. Clean all fans inlets and filters

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4. Drain all Strainers

Supplement 2

How to Examine Compressed Air Mechanisms

Your machine has one or more mechanisms that use compressed air for movement. Figure 8 shows some examples. To examine a compressed air mechanism, look at the mechanism and listen to it in operation. Do not touch the mechanism or put your hand in the machine.

Usually you can see movement directly or on a position indicator. Frequently, you can hear a valve open and close. When a signal from the controller to operate the mechanism occurs, the air pressure must increase sufficiently before movement occurs. When the signal stops, the system must release the compressed air. You can usually hear the sound of the exhaust air for a short time.

When a compressed air mechanism operates correctly, its time of movement is usually less than two seconds. The movement is smooth. It does not shake, change speed, or stop in the middle of travel. A mechanism that does not operate correctly will cause unsatisfactory performance. If the mechanism does not operate correctly and you cannot repair the problem, speak to your dealer or Milnor. Possible causes are as follows:

• a blockage or a leak in the air tube,

• a worn pilot air valve,

• worn components in the mechanism,

• air pressure supplied to the machine is not sufficient,

• a component used to remove contamination from the air line is clogged,

• a quick exhaust valve or muffler is clogged,

• on machines with an air line lubricator, a malfunction or incorrect adjustment prevents sufficient lubrication.

Figure 8: Compressed Air Mechanisms. These are examples. Your machine can look different.

Air Operated Water Valves - Milnor Air Cylinder Type

Air Operated Drain Valve - Milnor Air Cylinder Type

Air Operated Band Brake - Milnor Air Cylinder Type

Air Operated Water and

Steam Valves - Angle Type Air Operated Water Valve -

Ball Valve Type

1. Factory-set needle valves to cause two air cylinders to move together. Do not adjust.

2. Quick exhaust valves

3. Position indicator. Yellow when valve is open.

4. Arrow position indicator

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5. Examine all Compressed Air Mechancisms

Figure 9: Photoeyes. These are examples. Your machine can look different.

Photoeye protected by a site glass, each side of the CBW load chute

Photoeye and reflector on extractor discharge conveyor

→. Exposed surfaces that must be clean. Remove contamination with a soft cloth. If the surface is hard to touch, use a cloth on the end of a wood dowel or metal rod. If necessary, use a safe cleaning agent.

Figure 10: Proximity Switches These are examples. Your machine can look different.

1 Station Press Centrifugal Extractor Shuttle Conveyor

Typical Proximity Switch Legend

→. Area that must be clean. Remove contamination with a soft cloth. If the area is hard to touch, use a cloth on the end of a wood dowel or metal rod. If necessary, use a safe cleaning agent.

Figure 11: Maintenance Key Switch. This is an example. Your machine can look different.

Key Switch Plate Kew Switch Positions Legend

1. Safe Operation

2. Maintenance Only

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6. Check and Clean All Photo Sensors

Supplement 3

How to Do a Test of Emergency Stop Mechanisms

This test applies to machines that have one or more stop mechanisms in addition to the Stop button ( 0). Do this test at the intervals given in the maintenance summary.

Definitions:

3-wire circuit—a series electrical circuit on a Milnor machine that must close before the machine can operate. If a switch in the circuit opens, machine movement stops and the operator alarm (a buzzer and a display message) comes on. When you push the start button (

1), this closes the 3-wire circuit, which stops the operator alarm and lets the machine operate.

emergency stop mechanism—a manual control that opens the 3-wire circuit when a person or object operates the control. Examples - emergency stop button, kick plate, pull cord.

emergency stop button—a red push button on a yellow field that locks when a person pushes it (the electrical contacts stay open). It is necessary to turn the button clockwise to unlock it.

A machine can have zero or more emergency stop buttons.

kick plate—a metal plate on a shuttle conveyor that operates a switch when an object applies sufficient force to the plate. The kick plate is usually the first component of the shuttle to hit an object in the shuttle path. All Milnor shuttles that go left/right on a path have kick plates on the two sides of the machine.

WARNING 23 : You can be killed or severely injured if a shuttle strikes you even if you come in contact with the kick plate first.

• Never do a test of the kick plate when the shuttle operates.

pull cord—a wire on a conveyor that operates a switch when a person pulls the wire. All Milnor free-stand conveyors (a conveyor that is not a component of a larger machine) have pull cords on the two sides of the conveyor.

Do a test of all emergency stop mechanisms on the machine as follows:

1. Apply power to the machine ( M).

2. Push the start button ( 1). Do not cause the machine to operate. For example, do not start a formula or operate the machine manually. It is not necessary to do the test when the machine operates.

3. Operate an emergency stop mechanism (examples - button, kick plate, pull cord). If the mechanism operates correctly, the operator alarm comes on. Did this occur?

Yes—Release the emergency stop mechanism if necessary. For example, if this is an emergency stop button, turn the button clockwise to unlock it. Push the start button (

1). Do the test on a different emergency stop mechanism. Continue until you do the test on all emergency stop mechanisms on the machine.

No—An electrical component is defective. Shut down the machine. Do not let the machine operate until you correct the problem.

Supplement 4

How to Do a Test of a Perimeter Safe-guarding System

This test applies to machines that must have perimeter safe-guarding. Do this test at the intervals given in the maintenance summary.

Definitions:

perimeter safe-guarding system—a system that causes the movement of machines to stop if a person goes in the perimeter. This area includes the full shuttle path. A typical system is a fence with gates that have gate interlock switches. If a gate opens, the 3-wire circuits on the machines open.

machines that must have perimeter safe-guarding—Milnor 1- and 2-station presses, centrifugal extractors, elevators, and shuttles. These types of machines have an electrical connection point to add external switches (example - gate interlock switches) to the machine's 3-wire circuit.

other machines that can be in the perimeter—tunnel washers, dryers, and conveyors. Often, these types of machines are also enclosed because of the laundering system layout.

General rules:

• Know which machines to include in the test (machines that must have perimeter safe-guarding) and which machines to not include (other machines that can be in the perimeter).

• Do the test when the laundering system is not in operation.

Do a test of all gates as follows:

1. Make sure that all gates are closed.

2. On all machines that are in the test, apply power ( M) and push the start button ( 1).

3. Open a gate. If the circuit operates correctly, the operator alarms on all machines come on.

Did this occur?

Yes—Close this gate. On all machines, push the start button ( 1). Open a different gate. Continue until you do the test on all gates.

No—An electrical component is defective. Shut down the laundering system. Do not let the system operate until you correct the problem.

3.1.6. Maintenance Components—Hydraulic Power Group [Document

BIPPBM05]

Figure 12: Hydraulic Power Components and System Oil Capacity

Top of Tank - Typical Multi-manifold Machine

1. Filtered inlet. Add oil here. System capacity: MP15_ and MP16_ models = 70 gallons (265 liters). MP1A_ models = 115 (435).

2. Remove oil here.

3. View port

4. Level and temperature gauges

5. Tank is full when the level is here. See caution statement

6. Breather and moisture filter

7. Housing with oil filter

8. Oil filter pressure gauge

9. Housing with re-circulation oil filter on MP1A50_ models.

10. Air filter on oil cooler

11. Unfiltered inlet - single-manifold machines only

Components On Front of Tank Oil Cooler

Top of Tank - Typical Single-manifold

Machine Unfiltered Inlet - Single Manifold Only

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7. Check Hydraulic Fluid Level, Clean Filter

CAUTION 24 : Risk of malfunction—A large quantity of oil will spill the next time the hydraulic system operates if you add oil when the ram is down.

• Make sure the ram is up and the safety bars are installed before you add or replace the hydraulic oil.

Supplement 5 How to Retract the Ram

1. Use the manual mode to put the container (the can) on the bed.

2. Use the manual mode to move the ram down and up. The ratchet mechanism will cause the platen and diaphragm to turn. Stop when the ram is up and the two eye bolts are aligned.

3. Attach the safety bars to the eye bolts to make sure that the ram does not go down at all. If it does, you will not remove all of the oil or you will add too much oil.

4. Remove power from the machine.

5. Replace all of the filters on top of the tank if necessary. See Figure 12.

Figure 13: Plug on Gooseneck Pipe

Supplement 6 How to Replace the Hydraulic Oil or Add Oil to the Full Mark - 1-station Press

Models (other machines with hydraulic tanks similar)

Note 1: On 1-station press models, the procedure to add oil at installtaion or after replacement of a major hydraulic component is a dealer procedure and is given in document BNP1PI01 in the mechanical parts manual.

If the drain and/or the fill pipe on the tank has a quick disconnect fitting, remove it if necessary to connect a hose. After you complete the work, put the fitting or a cap on the pipe.

To remove the used oil—

Requirements:

• On 1-station press models, the ram must be in the up position and held up by the safety bars.

• Power must be removed at the external disconnect box.

1. Make sure the valve on the drain pipe is closed.

2. Install the hose between the drain pipe and the container you will use to collect the used oil.

Remove the quick disconnect fitting from the drain pipe if necessary.

3. Operate the manual valve to let the oil flow. Close the valve when the tank is empty.

4. Remove the hose and put a cap on the pipe.

When hydraulic oil is added to the 1-station press, it is always necessary to pass the oil through a clean filter of the correct mesh size. Even new oil, as it comes in the container, is not sufficiently clean. Unfiltered oil can cause scoring of the ram. If this occurs, it can be necessary to replace this costly component.

To add oil when the oil level is slightly low—

1. Remove the cap on the oil filter housing (Item 7 in Figure 12).

2. Remove and examine the oil filter cartridge. Replace the cartridge with a new one if it is dirty.

3. With the filter cartridge in place, pour new oil into the well in the filter cartridge and allow the oil to seep through the filter.

4. Repeat step 3 as necessary until the level is at the full mark on the level gauge.

5. Replace the cap on the filter housing.

To add oil when the oil level is very low or after you remove the used oil—

1. Remove and examine the oil filter cartridge. Replace the cartridge with a new one if it is dirty.

2. Install the hose between the fill pipe on the tank (Item 1 in Figure 12) and the pump on the container with the new oil. It can be necessary to remove the fitting from the pipe.

3. Add oil until the level is at the full mark on the level gauge.

4. Remove the hose and put a cap on the fill pipe.

Supplement 7 How to Make Sure That the Hydraulic Oil is Serviceable

Two types of deterioration can occur with the hydraulic oil: contamination and chemical change. You can usually remove contamination with special filters. To prevent damage to components (example: rust), it is necessary to replace the oil if a chemical change occurs.

Visually examine the oil through the view port (Figure 12). Put approximately one pint (one half kilogram) of oil from the drain pipe on the tank in a cup. When the oil is new, it is transparent, has an amber color and has no contamination. When the machine operates correctly, the oil can get a brown color. This condition is satisfactory. Speak to your local hydraulic maintenance company if one or more of these oil conditions occur:

• not transparent

• a brown to black color

• a gray to white color

• particles or bubbles

• a sour or burned odor

Give the hydraulic company a sample of the oil to examine. They can identify the type of deterioration and tell you the correct procedure. If it is possible to use special filters to remove the contamination, they can supply the necessary equipment.

Supplement 8

How to Examine the Hydraulic System for Leaks

WARNING 25 : Poison hazard—Hydraulic oil that comes out of a leak with pressure can put a hole in your skin, go into your body, and kill you.

• Do not use your fingers to examine components for hydraulic leaks.

A leak in the hydraulic system can be an oil leak or an air leak. If oil comes out with pressure, you will usually see an oil stain or an area where oil collects on a machine surface. The usual symptoms of an air leak are:

• The oil in the tank will have air bubbles.

• The machine will make the sound of ball bearings in a pipe when the hydraulic system operates.

• The oil does not stay in the gooseneck pipe after the machine stops operation. To find if this occurs, remove power from the machine. Then after four hours or more, open the pipe plug on the gooseneck pipe (Figure 13). If there is no air leak, air will go in when the vacuum that holds the oil in the pipe is broken.

It is necessary to repair a hydraulic leak. Speak to your dealer or Milnor. This is not routine maintenance.

3.1.7. Maintenance Components—1-station Press Group [Document

BIPPBM06]

Figure 14: Air Pressure Gauge and Regulator on Top of Top Plate for Discharge Door

COttman

8. Check Hydraulic Fluid Level, Clean Filter

Figure 15: Conveyor and Return Water

Discharge End Discharge End, Motor Side Belt Scraper Tray

Return Water Pump Legend

1. Grease fittings

2. Scraper. See caution statement 26 .

3. Conveyor belt

4. lint screen and sump. Remove the lint screen to remove lint.

5. Tray. Loosen or remove belt scraper to get access to tray. When you replace the scraper, set the space between the belt and scraper to approximately 1/16" (2 mm).

CAUTION 26 : Risk of malfunction—When lint becomes caught between the press bed and the scraper, a space opens that can catch goods. It will be necessary to remove power from the machine to remove the goods.

• Keep the scraper clean.

— End of BIUUUM09 —

COttman

8. Inspect Clean and Observe Return Water screen, sump and Conveyor