J&M PRO 450 - Manual (Page 20)

20
TROUBLESHOOTING
2.9 Troubleshooting
Problems Solutions
Unit sways during travel
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 section 2.5).
Tires show excessive wear
a. Check tire pressure.
b. Rotate tires. (See section 2.3)
c. Check wheel bearings for adjustment. (See section 2.5).
Wheel makes grinding or squeaking noise
a. Service wheel bearings. (See section 2.5).
Noisy when brakes are being applying
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 section 2.5).
No Brakes
a. Properly adjust brakes
b. Check for short in electric circuit
c. Replace any brake magnets that are worn or defective
Weak brakes
a. Properly adjust brakes
b. Replace any excessively worn or contaminated linings.
c. Check for short in electric circuit
d. Replace bent backing plate
Dragging brakes
a. Properly adjust brakes
b. Replace any weak or broken springs in brakes
c. Clean and lubricate the brake assemblies