Attachment 11 - Screw Conveyor System Operation and Maintenance Manual.pdf

OPERATION & MAINTENANCE MANUAL

REVISION 4.0

SCREW CONVEYOR SYSTEM

ACTION TARGET

3411 Mountain Vista Pkwy

Provo, UT 84606, USA

SCREW CONVEYOR SYSTEM

OPERATION & MAINTENANCE MANUAL

COPYRIGHT © 2016 Action Target

All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, mechanical, electronic, photocopying, recording, or otherwise without the prior written permission of Action Target. For information or licensing, address correspondence to 3411 Mountain Vista

Parkway, Provo, Utah 84606, USA.

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TABLE OF CONTENTS

SECTION 1: GENERAL INSTRUCTIONS

1.1 GETTING HELP

1.2 MANUAL CONVENTIONS

2.1 SYSTEM DESCRIPTION

2.2 SYSTEM COMPONENTS

SECTION 3: SAFETY & LIABILITY

3.1 PERSONAL SAFETY

3.2 SECONDARY ELECTRICAL SAFETY DEVICES

3.3 SAFETY LABELS

3.4 PERSONAL PROTECTION EQUIPMENT DURING MAINTENANCE & REPAIR WORK

3.4.1 HEAVY LIFTING

SECTION 4: LEAD CONTAINMENT

4.1 DRAINAGE AND FILTRATION OF CONTAMINATED WATER

4.2 WET WASH DOWN OF LEAD PARTICULATES

SECTION 5: OPERATION

5.1 BEFORE OPERATION

5.2 START/STOP CONTROLS

5.3 SCS TIMER

5.3.1 Recommended frequency and duration of OPERATION

5.3.2 SETTING THE TIMER

5.4 MONITORING AND PROTECTION SYSTEM

5.4.1 overview

5.4.2 RotationAL Sensor Monitoring Panel

5.4.3 FAULT DETECTION & inspection

5.4.4 Shear Coupling Operation

5.5 NEW RANGES AND LEAD PARTICULATES

5.6 EXTENDED PERIODS OF INOPERATION

6.1 OVERVIEW

6.2 RANGE MAINTENANCE SCHEDULE AND LOG

6.3 REPLACE THE LEAD COLLECTION DRUM

6.4 INSPECT THE UPTAKE AUGER

6.5 ADD MINERAL OIL TO THE UPTAKE SCREW CONVEYOR

6.6 CONVEYOR COMPONENT SERVICING

6.6.1 Conventional Conveyor Screws

6.6.2 Coupling and Hangers

6.6.3 Ball or Roller Bearings

6.6.4 Other Bearings

GENERAL INSTRUCTIONS

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SECTION 1: GENERAL INSTRUCTIONS

1.1 GETTING HELP

If you have questions about the information in this manual, please contact Action Target Customer Service at (888) 377-8033.

1.2 MANUAL CONVENTIONS

You will find the following icons in this manual to highlight important information:

This is a safety tip to help you maintain the safety of yourself and others.

This is a warning to indicate potential danger or damage to equipment.

This is a note to draw your attention to helpful information.

GENERAL INSTRUCTIONS

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SECTION 2: PRODUCT INFORMATION

2.1 SYSTEM DESCRIPTION

The Screw Conveyor System (SCS) is a helicoid conveyor screw with a U-shaped flange-formed trough.

As projectiles pass through the trap collection chamber, SCS collects, moves, and distributes lead, brass, and other slug/projectile materials from the trap and safely deposits the materials in a large barrel for hands-free operation.

2.2 SYSTEM COMPONENTS

Most SCS components are manufactured to the standards of the Conveyor Equipment Manufacturers Association (CEMA). Conveyors can be ordered as individual components for aligning and assembling in the field. When the manufacturer engineers the conveyor, complete specification drawings are generally furnished. Always follow the manufacturer’s instructions.

FIGURE 1. SIDE VIEW OF SCS INSTALLED TO A VORTEX CHAMBER

SAFETY & LIABILITY

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SECTION 3: SAFETY & LIABILITY

3.1 PERSONAL SAFETY

It is the responsibility of the owner and user to maintain and operate the screw conveyor, components, and conveyor assemblies in such a manner as to comply with the Williams-Steiger Occupational Safety and Health Act and with all state and local laws and ordinances and the American National Standards Institute (ANSI) B20.1 safety code.

In order to avoid an unsafe or hazardous condition, the assemblies or parts must be installed and operated in accordance with the minimum provisions in Table 1 below:

The operator must thoroughly understand these instructions before using the conveyor.

Failure to follow these precautions may result in serious injury or damage to equipment.

TABLE 1. MINIMUM SCS SAFETY PROVISIONS

# SUMMARY SAFETY PRECAUTION

1.

Conveyor covers/ guards must be in place before operation.

Conveyors shall not be operated unless all covers and/or guards for the conveyor and drive unit are in place.

Put fence around conveyor with open housing.

If the conveyor must have an open housing as a condition of its use and application, the entire conveyor is then to be guarded by a railing or fence in accordance with ANSI standard B20.1.

3.

Conveyor feed openings must be covered by a grate or fence and a warning sign.

Feed openings for shovel, front loaders or other manual or mechanical equipment shall be constructed in such a way that the conveyor opening is covered by a grating. If the nature of the material is such that a grating cannot be used, then the exposed section of the conveyor is to be guarded by a railing or fence and there shall be a warning sign posted.

4.

Lock out power before performing conveyor maintenance or inspection.

If the conveyor is to be opened for inspection cleaning, maintenance or observation, the electric power to the motor driving the conveyor must be LOCKED OUT in so that the conveyor cannot be restarted by anyone; however remote from the area, until conveyor cover or guards and drive guards have been properly replaced. Do not attempt any maintenance or repairs of the conveyor until power has been LOCKED

OUT.

5.

Observe these instructions and conveyor caution labels.

Always operate conveyor in accordance with these instructions and those contained on the caution labels affixed to the equipment.

6.

Do not insert hands, feet, etc. into the conveyor.

Do not place hands, feet, or any part of your body, in the conveyor.

7. Do not walk on conveyor covers. Never walk on conveyor covers, grating or guards.

8. Use conveyor for its intended purpose only.

Do not use conveyor for any purpose other than that for which it was intended.

9.

Do not poke material into the conveyor with a stick through the openings.

Do not poke or prod material into the conveyor with a bar or stick inserted through the openings.

10.

Keep area around conveyor clean and clear.

Keep the area around conveyor drive and control station free of debris and obstacles.

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# SUMMARY SAFETY PRECAUTION

11.

Before opening the conveyor, remove sources of stored energy to prevent conveyor components from moving.

Eliminate all sources of stored energy (materials or devices that could cause conveyor components to move without power applied) before opening the conveyor

12.

Lock out before clearing a jammed conveyor.

Do not attempt to clear a jammed conveyor until power has been

LOCKED OUT.

13. Do not modify conveyor. Do not attempt field modification of conveyor or components.

14.

Do not convey hazardous materials in the conveyor without consulting manufacturer.

Conveyors are not normally manufactured or designed to handle materials that are hazardous to personnel. Materials which are hazardous include those that are explosive, flammable, toxic or otherwise dangerous to personnel. Conveyors are not manufactured or designed to comply with local, state or federal codes for unfired pressure vessels. If hazardous materials are to be conveyed or if the conveyor is to be subjected to internal or external pressure, the manufacturer should be consulted prior to any modifications.

To help promote safety and help reduce accidents, Conveyor Equipment Manufacturers Association (CEMA) has made an online video to demonstrate the basic rules for safe operation of screw conveyors: http://www.cemanet.org/cema-safety-videos/

3.2 SECONDARY ELECTRICAL SAFETY DEVICES

Electrical controls, machinery guards, railings, walkways, arrangement of installation, training of personnel, etc., are necessary ingredients for a safe working place. However, decisions about their necessity and nature must be made by the owner/assembler as Action Target has no information regarding plant wiring, plant environment, the interlocking of the screw conveyor with other equipment, extent of plant automation, etc.

Other devices should not be used as a substitute for locking out the power prior to removing guards or covers. The use of secondary devices may cause employees to develop a false sense of security and fail to lock out power before removing covers or guards. This could result in a serious injury should the secondary device fail or malfunction.

3.3 SAFETY LABELS

One or more warning labels should be visible on conveyor housings, conveyor covers and elevator housings. If the labels attached to the equipment become illegible, please print new labels from: http:// www.cemanet.org/wp-content/uploads/2013/12/AllLbels20141.pdf

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3.4 PERSONAL PROTECTION EQUIPMENT DURING MAINTENANCE & REPAIR WORK

Wear protective clothing when replacing product parts, including:

§ Tyvek suit and full face respirator: Wear when servicing the chamber or cleaning the trap.

§ Metatarsal steel toe shoes: To help prevent a foot injury if a component is dropped.

§ Gloves: To minimize injury associated with finger pinches when installing product components.

§ Eye protection: Wear at all times.

§ Hearing protection: Wear when noise exposure exceeds 85 decibels on the A scale (dBA).

3.4.1 HEAVY LIFTING

When lifting heavy product components, practice proper lifting technique:

1. Your feet should be shoulder-width apart § Place one foot slightly in front of the other

2. Squat down § Bend at the hips and knees only

3. Maintain good posture § Look straight ahead and, keeping your back straight, push your chest out and your shoulders back (this helps keep your upper back straight while creating a slight arch in your lower back)

4. Lift slowly

§ Tighten your stomach and straighten your hips and knees (not your back) § Keep your back straight and do not twist as you lift

5. Hold the load as close to your body as possible

6. Use your feet to change direction and take small steps

7. Lead with your hips as you change direction

§ Keep your shoulders in line with your hips as you move

8. Squat with your knees and hips only when setting down the load

Avoid:

§ Bending forward to pick up heavy objects § Lifting a heavy object above shoulder level § Twisting or turning your body while lifting or holding a heavy object

FURTHER INFORMATION

For more information about technique for proper lifting of heavy materials, visit the following page of the Occupational Safety & Health Administration (OSHA) website:

https://www.osha.gov/SLTC/etools/electricalcontractors/materials/heavy.

html

LEAD CONTAINMENT

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SECTION 4: LEAD CONTAINMENT

4.1 DRAINAGE AND FILTRATION OF CONTAMINATED WATER

Particularly in the instance of outdoor traps or conveyors, make sure that rainwater runoff from other parts of the range does not drain toward the trap, otherwise lead and other particulates may be picked up by the water and carried into the surrounding environment.

New ranges should be designed so that any water present on the ground in the trap area is contained and then evaporated or filtered prior to being released into the environment. Water present on the ground in other areas of the range should run off the range without passing through the trap area.

Furthermore, rainwater must be prevented from entering the trap chamber. In ranges that use the DCU, any significant volume of water which enters the system can solidify the particulates accumulated on the filters, rendering the filters ineffective. A replacement of filters in the system would also be required.

4.2 WET WASH DOWN OF LEAD PARTICULATES

Some ranges successfully utilize a wet wash down procedure to remove lead and other particulates.

However, the range must be equipped with a catch basin or reservoir to contain the runoff water.

Water must not be released into the environment until it is purified by evaporation, filtration, or settling.

A wet wash down procedure is not recommended on ranges equipped with a DCU as direct introduction of water into the DCU would damage the filters.

OPERATION

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SECTION 5: OPERATION

5.1 BEFORE OPERATION

1. Conduct daily maintenance (see Range Maintenance Checklist and section 6 of this manual).

2. Ensure all covers, guards, and safety equipment are properly installed.

3. Some drive movement may be experienced when operating the conveyor. If the movement is excessive, the cause may be a bent screw, improper installation, or wear on the hanger bearing, shaft, or internal collar. Contact Action Target Customer Service for assistance.

The screw conveyor requires periodic maintenance. If this maintenance is not performed according to the manufacturers requirements, resulting conditions are not covered under the manufacturers standard warranty.

5.2 START/STOP CONTROLS

This control consists of a START and STOP button (see Fig. 2). If the SCS cannot be detected audibly, there may be an additional POWER ON indicator light on the user control panel.

Ensure the conveyor discharge is clear before feeding it material.

Once Daily Maintenance is performed, range personnel can safely engage the auger system. There are two main ways to control the SCS. First, there is a Push Button Start/Stop switch. Second, there is a timer switch control.

3.3.1. Start/Stop Controls

Caution! Check that the conveyor discharge is clear before feeding material!

The user controls for the SCS consist of two buttons: "start" and "stop" as shown in Figure 1.

Note: The exact location of these controls may be different for each installation. In installations where the operation of the SCS can not be detected audibly, there may also be an optional "power-on" indicator light on the user control panel.

Increase feed rate gradually until the rated capacity is reached by following these instructions:

1. To begin operation, depress and hold the start button down.

When proper operating speed is achieved, you may release the start button. If the start button is released before the speed is obtained, the SCS enters a shutdown state and cannot operate properly until the start sequence is executed properly.

2. Stop and start the conveyor several times and allow it to operate for several hours.

3. When use of the SCS is concluded, press the stop button momentarily. This removes power to the unit.

The unit may be safely left in this state overnight or for extended periods of time. If it is desired that the unit be unusable for a period of time, remove power to the system by turning off the main breakers (120V control voltage and 3 phase motor voltage), or turn off and lock the local disconnect.

START

STOP

Figure 1. Start/Stop Switch

3.3.2. Timer Switch Control Operation

There is a switch labeled, "Auto, Off, Manual" which is located downrange by the auger itself or may be located up-range if the range has wiring for remote control. The auger system may be engaged by turning the switch to a manual or auto mode. Generally, one system or the other will be operational and the other will be disabled.

If the manual mode is operational, turning the switch to "Manual" causes the auger system to run continuously until turned to the "Off" position. This mode should not be left on continuously for more than is necessary to clear the auger of accumulated lead in the trough.

Note: The time left running and the frequency run depend upon range usage.

If the auto mode is operational, turning the switch to "Auto" causes the auger system to run periodically until turned to the "Off" position. This system is controlled through a timer which is located next to the auger controls. Standard recommended setting of this timer should be to run 15 minutes, resting 45 minutes, and running again for 15 minutes. Repeat this sequence until the switch is turned from "Auto" to "Off".

The timer may be reset according to range usage. Follow the manufacturer's instructions included with the

ACTION TARGET • PO BOX 636 • PROVO, UT 84603 • 801-377-8033 •WWW.ACTIONTARGET.COM 6

FIGURE 2. START/STOP SWITCH

Follow these instructions to increase feed rate gradually until the rated capacity is reached:

1. Press and hold down the start button.

2. When proper operating speed is achieved, release the start button. If the start button is released before the speed is obtained, the SCS enters a shutdown state and cannot operate properly until the start sequence is executed properly.

3. Stop and start the conveyor several times and allow it to operate for several hours.

4. When use of the SCS is concluded, press the stop button momentarily. This removes power to the unit. The unit may be safely left in this state overnight or for extended periods of time.

If the unit will not be used for a period of time, remove the power to the system by turning off the main breakers (120V control voltage and 3-phase motor voltage), or turn off and lock the local disconnect.

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5.3 SCS TIMER

5.3.1 RECOMMENDED FREQUENCY AND DURATION OF OPERATION

Set the SCS timer according to the range length and volume (high or standard), as outlined below (see Table 2 for quick reference).

The range length is the length of the chamber row(s) serviced by the same SCS.

Frequency of system operation depends on range usage. If range usage is unknown, begin with the HIGH maintenance schedule (see Range Maintenance Schedule). The timer may be reset according to range usage (see section 5.3.2).

SCS TIMER SETTINGS FOR HIGH VOLUME RANGES (1 - 10 days to change a 55 gallon drum)

a. Range length - greater than 80 ft.:

§ Run duration: 10 minutes § Run frequency: 7 times per day

b. Range length - 80 ft. or less:W § Run duration: 5 minutes § Run frequency: 7 times per day

SCS TIMER SETTINGS FOR STANDARD VOLUME RANGES (11+ days to change a 55 gallon drum)

a. Range length - greater than 80 ft.:

§ Run duration: 10 minutes § Run frequency: 4 times per day

b. Range length - 80 ft. or less:

§ Run duration: 5 minutes § Run frequency: 4 times per day

TABLE 2. SCS TIMER SETTINGS FOR HIGH AND STANDARD VOLUME RANGES

HIGH VOLUME STANDARD VOLUME

RANGE LENGTH > 80 ft. ≤ 80 ft. > 80 ft. ≤ 80 ft.

RUN DURATION 10 minutes 5 minutes 10 minutes 5 minutes

RUN FREQUENCY 7x/day 7x/day 4x/day 4x/day

5.3.2 SETTING THE TIMER

The timer is usually located downrange near the SCS or uprange if the range has wiring for a remote control. The SCS may be engaged by turning the switch to a MANUAL or AUTO mode.

Generally, one system or the other will be operational and the other will be disabled.

Press AUTO to toggle between AUTO and MANUAL modes.

Press +/- to toggle values.

STEP 1: Set the current time and date

1. Press MENU. The am-pm/24hr option will appear.

2. The clock will appear. To set the time:

§ Set the hour and press OK.

§ Set the minute and press OK.

§ Set the day of the week and press OK.

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STEP 2: Set the time and date the SCS should turn ON

1. After completing step 1, PROG 01 will appear. Press OK.

2. The timer will appear. To set the time the SCS should turn ON:

§ Set the hour and press OK.

§ Set the minute and press OK. The days of the week will appear on the left side.

§ Set the day of the week and press OK.

STEP 3: Set the time and date the SCS should turn OFF

1. After completing step 2, PROG 02 will appear. Follow the instructions in Step 2 to set the time the

SCS should turn OFF.

2. Repeat steps 1 and 2 to set times and dates the SCS turn ON. You may set a total of 20 programs

(10 ON and 10 OFF programs).

3. When complete, press MENU.

STEP 4: Verify the program

1. To verify the program is correct, press MENU, then press OK to scroll to PROG 01. Use the +/-buttons to scroll through the rest of your programs.

If the MANUAL mode is operational, turning the switch to MANUAL makes the auger system run continuously until the switch is turned to the OFF position. This mode should not be left on continuously for longer than needed to clear the auger of accumulated lead in the trough.

If the AUTO mode is operational, the timer will turn from AUTO to OFF after it has finished all of its 15-minute cycles.

The SCS should never be permitted to fill more than the SCS is able to move through the entire length of the trough at one time. Turning on the SCS frequently to expel the lead is advised, but leaving it on for longer than necessary may cause premature motor wear.

Continual adjustment is needed depending on the use and volume of your particular range.

The timer may be reset according to range usage. Follow the manufacturer’s instructions included with the time for resetting.

For additional support, call Intermatic Tech Support at (815) 675-7000.

FIGURE 3. SCS TIMER

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5.4 MONITORING AND PROTECTION SYSTEM

5.4.1 OVERVIEW

Your Action Target SCS may be equipped with a rotational sensor and integrated shut-off system.

This system monitors the rotation of the screw conveyor and shuts off the drive motor if a blockage is detected. The system consists of:

§ A monitoring panel (typically located in the range).

§ A control box mounted near the SCS.

5.4.2 ROTATIONAL SENSOR MONITORING PANEL

The lights of the monitoring panel indicate the operational state of the SCS (see Fig. 4 and Table 3).

FIGURE 4. ROTATIONAL SENSOR MONITORING PANEL

TABLE 3. MONITORING PANEL LIGHTS KEY

LIGHT COLOR SYSTEM STATUS DESCRIPTION

Blue Idle The system is powered but the SCS is not running.

Green Running The SCS is running and no faults have been detected.

Red (flashing) Fault A fault was detected while the SCS was running.

5.4.3 FAULT DETECTION & INSPECTION

The most likely cause of a fault is excessive lead buildup in one of the screw conveyors, resulting in a the slowing or cessation of the SCS. An inspection of the SCS is necessary to properly determine the source of the fault.

How to Inspect the SCS:

Follow all “lock out/tag out” procedures prior to opening screw conveyor lids and troughs. Use appropriate personal protection equipment, such as tyvek suits and respirators (see section X).

1. Inspect all screw conveyors and remove any obstructions.

2. Check if the uptake shear coupling (if applicable) has sheared.

3. When all screw conveyors have been cleaned of any obstructions, press RESET on the rotational sensor control box (located near the uptake motor) to reset the SCS monitoring system (see Fig. 5).

4. Once the monitoring system has been reset, the screw conveyor can be turned back on.

If the monitoring system shuts down again, you may have a failed bearing or other component. The SCS should be inspected and repaired by a qualified technician.

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FIGURE 5. ROTATION SENSOR CONTROL BOX

5.4.4 SHEAR COUPLING OPERATION

There may be a shear coupling on the shaft connected to the uptake screw to the motor/gearbox. The shear coupling prevents damage to the screw conveyor in case of a blockage.

To inspect the shear coupling, open the lid of the uptake trough and rotate the shaft connected to the uptake screw to the motor/gearbox. If the screw does not rotate, the shear coupling has sheared and needs to be replaced.

5.5 NEW RANGES AND LEAD PARTICULATES

It may take some time before enough lead builds up inside the trough to be moved by the screw conveyor towards the barrel. The design is not to “clean" the trough each time the system is engaged, but to convey the majority of the lead into the barrel.

Neither MANUAL nor AUTO modes should be left in the ON position unless range personnel are present. The system should be in the OFF position during times without use.

5.6 EXTENDED PERIODS OF INOPERATION

If the conveyor is not operated for 30 or more days, clean the trough completely to prevent the material from hardening over time (ensure the conveyor is shut down and the power is locked out prior to cleaning).

There is a ½” gap between the screw and the trough in which material might be trapped. You may require a HEPA vacuum to this material from the trough.

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SECTION 6: MAINTENANCE

6.1 OVERVIEW

Establish routine inspection and maintenance of the entire SCS to ensure ongoing maximum operating performance. Keep the area around the SCS clean and free of obstacles to provide easy access to the system and prevent interference with the function of the SCS.

Lock out power to the motor (preferably with a padlock on the disconnect switch) before performing maintenance.

Do not remove the padlock from the disconnect switch or operate the SCS until covers and guards are securely in place.

6.2 RANGE MAINTENANCE SCHEDULE AND LOG

Perform the maintenance procedures listed in the Screw Conveyor System section of the Range Maintenance Schedule and record in the Range Maintenance Log.

Maintenance procedures listed in the Range Maintenance Schedule that require supplementary information have been included in this section.

The maintenance schedule (high or standard) that a range should follow is ascertained by the number of days it takes to fill the lead collection barrels as outlined in Table 4 below.

TABLE 4. MAINTENANCE SCHEDULES DETERMINED BY NO. OF DAYS TO FILL THE LEAD CONTAINMENT UNIT

Average time to change a 55 gallon lead collection barrel (change when 2/3 full): 1-10 days 11+ days

Follow maintenance schedule: HIGH STANDARD

Adjust maintenance schedule if range use varies. New ranges should follow the high maintenance schedule until use is determined.

6.3 REPLACE THE LEAD COLLECTION DRUM

When the lead collection drum is 2/3 full, cease use of the system until it has been replaced with an empty drum. Appropriate personal protection equipment is required (see section 3.4).

Replacement instructions:

A pallet should be placed under the new drum before re-installation. Drums should be DOT rated along with lids and seals. Reattach the lid to the new drum, ensuring that the ring and seal are intact. The power to the system may be turned back on and the system may now be engaged.

1. Remove the ring seal from the lid on the drum. Lift up the lid.

2. Attach the eyelets on the lid to the chains provided on the take away arm.

3. Replace the lid and seal the drum before moving.

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6.4 INSPECT THE UPTAKE AUGER

The uptake auger should be inspected for clogging or lead buildup.

Inspection instructions:

Follow all “Lock out, Tag out” procedures prior to opening screw conveyor lids and troughs.

Make sure appropriate safety equipment (tyvek suits and respirators) are work when maintaining the screw conveyor system.

The uptake auger lid is heavy. At least two people should lift the lid and set it aside for inspection.

1. If the screw conveyor system is equipped with a hinged uptake lid, simply remove the clamps holding the hinged section down and lift the lid for inspection. I

2. If the screw conveyor system does not have a hinged lid, the entire update lide must be removed for inspection.

3. Inspect the uptake screw conveyor and trough for any lead buildup or ingots, especially in the area where the uptake meets the horizontal auger (the transition section). Remove any lead buildup or ingots as necessary.

6.5 ADD MINERAL OIL TO THE UPTAKE SCREW CONVEYOR

Do not add mineral oil to the SCS if frangible ammunition use exceeds 10%.

Field tests have found that the scheduled use of mineral oil in the uptake screw conveyor increases the efficiency of the screw conveyor and eliminates screw-damaging ingot formation. A port for adding mineral oil to the uptake screw conveyor is located in the uptake trough lid. Add mineral oil following the schedule in Table 5 below.

TABLE 5. MINERAL OIL SCHEDULE

HIGH* STANDARD*

Add 1/2 cup mineral oil to lower section of uptake screw conveyor (detailed instructions and mineral oil specs in operation and maintenance manual).

Every 2 days Weekly

*See Table 4 to determine if your range use is high or standard.

Approved Mineral Oil Use one of the following types of mineral oil in the uptake auger:

1. Mineral oil (5 gal) provided by Action Target (PN: 16065)

2. Crystal Plus Tech Grade Mineral Oil 70T (5 gal) provided by STE Oil Company (PN: CP70T)

These are the only mineral oils approved for use in the uptake auger. Do not use drug store mineral oil.

6.6 CONVEYOR COMPONENT SERVICING

In most cases this involves removing an unserviceable part and installing a replacement. The installation procedures are outlined in the installation manual. Specific instructions for the removal of various conveyor components are as follows:

6.6.1 CONVENTIONAL CONVEYOR SCREWS

To remove a section or sections of conventional conveyor screw:

1. Proceed from the end opposite the drive.

2. Remove the trough end, conveyor screw section(s), coupling shafts, and hangers until all the screw sections have been removed, or until the damaged or worn section(s) is/are removed.

Sections of conventional conveyor screw equipped with split flight couplings may be removed individually with a minimum of disturbance of adjacent sections.

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6.6.2 COUPLING AND HANGERS

Replace couplings and hanger bearings when wear in either part exceeds 1/8”.

Replace coupling bolts when excessive wear causes problems.

6.6.3 BALL OR ROLLER BEARINGS

Ball and roller bearings may be furnished in trough ends or hangers. Lubricate in accordance with the manufacturer’s provided instructions.

6.6.4 OTHER BEARINGS

No lubrication is required for oil-less or graphite bronze, hard or chilled iron, oil impregnated wood, or plastic laminate hanger bearings.