WALMART MAINTENANCE Equipment Troubleshooting 3 — Questions and Answers
Question 1: A forklift's parking brake holds on level ground but slips on inclines. What is the correct action?
- Adjust or replace the parking brake mechanism (Correct answer)
- Avoid inclined surfaces only
- Increase tire pressure
- Reset the hour meter
Correct answer: Adjust or replace the parking brake mechanism
A parking brake that slips on inclines is worn or out of adjustment and must be repaired before the forklift is returned to service.
Question 2: An electric order picker's horn sounds intermittently without being pressed. What should a technician check?
- Horn button wiring for a short circuit or stuck contact (Correct answer)
- Battery water level
- Load wheel bearings
- Mast chain tension
Correct answer: Horn button wiring for a short circuit or stuck contact
An intermittent self-activating horn usually indicates a shorted or stuck horn button or chafed wiring creating an unintended ground.
Question 3: A refrigerated display case is not maintaining temperature but the compressor is running. What should be inspected first?
- Condenser coils for dirt or ice blockage (Correct answer)
- Store ambient temperature
- Display lighting wattage
- Fan motor color
Correct answer: Condenser coils for dirt or ice blockage
Dirty or iced-over condenser coils restrict airflow and reduce heat transfer, causing a running compressor to fail to cool adequately.
Question 4: A hand-held price gun jams repeatedly after every few labels. The most effective corrective action is:
- Load label rolls correctly and check for correct label size (Correct answer)
- Increase grip pressure on the trigger
- Replace the gun with a new model
- Use labels from a different manufacturer only
Correct answer: Load label rolls correctly and check for correct label size
Jams are almost always caused by improperly loaded label rolls or using labels not matched to the gun's specifications.
Question 5: A trash compactor produces a grinding metal-on-metal noise during the ram cycle. The technician should first:
- Stop operation and inspect ram guides and lubrication (Correct answer)
- Increase hydraulic pressure to push through
- Replace the hydraulic pump
- Continue use until next scheduled PM
Correct answer: Stop operation and inspect ram guides and lubrication
Metal grinding during ram movement indicates dry or damaged ram guides; continuing operation risks serious structural damage.
Question 6: A powered pallet truck loses drive power on one side, causing it to pull to the right. The likely fault is:
- Drive motor or controller issue on the left side (Correct answer)
- Right-side wheel is larger
- Battery is fully charged
- Steering handle misalignment
Correct answer: Drive motor or controller issue on the left side
When a dual-drive truck pulls to one side, the opposite drive motor or its controller is typically underperforming or failed.
Question 7: A cardboard baler fails to produce a tight, well-formed bale. Cardboard keeps spilling out the sides. What is the most likely issue?
- Charge door not fully closed or platen misaligned (Correct answer)
- Cardboard moisture content
- Incorrect bale weight limit set too high
- Wire tie machine out of wire
Correct answer: Charge door not fully closed or platen misaligned
If the charge door is not sealed or the platen is misaligned, material escapes during compression, preventing proper bale formation.
WALMART MAINTENANCE Equipment Troubleshooting 3
A forklift's parking brake holds on level ground but slips on inclines.
What is the correct action?