MHS Boilers CRUZ belt, Installation, Operation & Maintenance Manual, Page: 22 / 46

CRUZbelt
22
E0032544Rev090710
TROUBLESHOOTING GUIDE – MOTOR/REDUCER
Problem -
Motor/Reducer
Possible Cause Remedy
3. Reducer runs – drive
pulley does not turn Drive chain broken or
disconnected
Replace chain or repair
Sprockets loose.
Also see “Bearings” #8, Chain
& sprockets #2 and #6.
Check key and tighten set screws
4. Reducer leaks oil
Defective oil seals on output
shaft
Install new oil seals.
Replace reducer with spare and send
defective reducer to authorized repair
facility.
Oil level too high Drain off excess
Loose bearing cover bolts Tighten as required
Incorrect size Check size and replace if necessary
5. Thermal protectors
kicking out
Short in motor See “Motor Will Not Start”
Excessive amps being pulled
Reset starter and check ampere draw.
Check for conveyor overload.
6. Starter overloads
kicking out
Poor ventilation in control panel Add vents or fan
Electrical
Check circuits and panel. Check heater
size.
7. Repeated stalling
Excessive product loads
Check if loads or rates have increased
since purchase of conveyor
Motor wiring Check motor wiring
Overload on motor
Check conveyor for obstruction causing
drag or bearing failure. Check for
excessive product load.
8. Slow to start Electrical
Check circuits and panel. Take ampere
reading.
9. Excessive noise or
motor hums
Lack of lubrication Check oil level in gear case
Damaged gears Replace reducer
Loose mounting Tighten bolts
Faulty bearing Replace bearing
10.
Motor will run but
reducer does not turn
Worn gear in reducer
Replace reducer with spare and send
defective reducer to authorized repair
station.
Key between motor and
reducer missing
Replace key
11. Electrical shorts Loose connection
Check all wire connections.
Check fuses.