Troubleshooting - J&M SpeedTender LC290 Operator's Manual

Problems
Unit sways during travel
Tires show excessive wear
Wheel makes grinding or squeaking noise
Noisy when brakes are being applied
No brakes
Weak brakes
Dragging brakes
Locking brakes
Grabbing brakes
Surging brakes
Belt is not moving - Hydraulic pump is not
producing sufficient pressure or volume to belt
motor
Belt is not moving - Obstructed conveyor
Belt has insufficient output speed or RPM -
Hydraulic pump is not producing sufficient
pressure or volume to belt motor
Belt has insufficient output speed or RPM - Belt is
slipping
Belt has insufficient output speed or RPM - Air in
hydraulic system
Belt has insufficient output speed or RPM - Leak in
motor, valve body, or bypass valves
Excessive wear to belt edge - Tracking is off

Troubleshooting

Solutions
a. Check tire pressure.
b. Check tow vehicle for loosened hitch parts.
c. Check tow vehicle's hitch height.
d. Reduce towing speed.
e. Check wheel lug nuts.
f. Check wheel bearings for adjustment (see "Wheel Bearing Service" on page 20).
a. Check tire pressure.
b. Rotate tires (see "Tire Service" on page 19).
c. Check wheel bearings for adjustment (see "Wheel Bearing Service" on page 20).
a. Service wheel bearings (see "Wheel Bearing Service" on page 20).
a. Properly adjust brakes.
b. Replace any weak or broken springs in brakes.
c. Replace the brake linings if excessively worn or contaminated.
d. Check wheel bearings for adjustment (see "Wheel Bearing Service" on page 20).
a. Properly adjust brakes.
b. Check for short in electric circuit.
c. Replace any brake magnets that are worn or defective.
a. Properly adjust brakes.
b. Replace any excessively worn or contaminated linings.
c. Check for short in electric circuit.
d. Replace bent backing plate.
a. Properly adjust brakes.
b. Replace any weak or broken springs in brakes.
a. Replace any weak or broken springs in brakes.
b. Replace any excessively worn or contaminated linings.
a. Replace any excessively worn or contaminated linings.
a. Trailer is not adequately grounded.
a. Check for pinched or leaking hydraulic line.
b. Allow hydraulic oil to warm up.
c. Increase engine RPM.
d. Charge battery or plug in to tow vehicle.
e. Hydraulic fluid level low.
f. Hydraulic filter clogged.
g. Check for proper oil viscosity.
h. Check hydraulic output pressure.
a. Ensure conveyor is not clogged.
a. Check for pinched or leaking hydraulic lines.
b. Allow hydraulic oil to warm up.
c. Increase engine RPM.
d. Hydraulic fluid level low.
e. Hydraulic filter clogged.
f. Check for proper oil viscosity.
g. Repair or replace worn out pump.
a. Adjust belt tension and tracking (see "Adjusting Conveyor Belt Tracking" on page 23).
b. Check telescoping spout and conveyor for a clog.
c. Remove material from clean out door.
a. Bleed air out of hydraulic system and fill reservoir (see "Hydraulic Power Service" on page 18).
b. Look for leaking or cracked fittings.
a. Replace or repair motor, valve body, or bypass valves.
b. Check for proper oil viscosity.
c. Clean and lubricate the brake assemblies.
a. Adjust belt tension and tracking (see "Adjusting Conveyor Belt Tracking" on page 23).
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