SYMPTOM
PROBLEM: REMEDY
BENDING OR WARPING
Curb-hopping or potholes:
Adjust turning prac-
tices and speed according to road conditions.
Improper tightening sequence:
Follow proper
tightening sequence.
BROKEN STUDS*
Over-tightening:
Use correct torque and tighten-
ing sequence when mounting.
*Replace broken studs before using the semitrailer!
TRAILER TRACKING PROBLEMS:
TRACKS TO ONE SIDE
Axle alignment:
Re-align axle.
TRACKS TO EITHER SIDE
Broken or bent springs or equalizer bushings:
Replace worn parts.
Axles not parallel:
Adjust axle spacing to be par-
allel.
5-4 BRAKES
For maintenance procedures,
see Section 4-9
SYMPTOM
PROBLEM: REMEDY
NO BRAKES OR BRAKES ARE INTERMITTENT
Brake air system improperly connected:
Re-
connect gladhands properly.
Relay/Emergency valve plugged:
Clean valve.
Defective tractor protection valve:
Repair or re-
place.
Restricted tubing or hose line:
Locate and elimi-
nate restriction.
Broken line:
Locate break and repair.
Tractor air system failure:
Troubleshoot tractor
air system and repair.
SINGLE BRAKE DRAGGING OR LOCKED
Broken internal brake component:
Locate and
replace broken part.
Flat spot on cam roller or cam shaft:
Replace
and lubricate.
Improper adjustment:
Adjust slack adjusters.
Spider bushing or cam bracket bushing bind-
ing:
Lubricate or replace bushing.
Improper lubrication:
Lubricate per Figure 4-1.
Worn brake shoe bushing:
Replace bushing.
Brake drum distortion:
Replace drum.
Broken brake chamber spring:
Replace spring.
Brake chamber pushrod binding:
Realign brake
chamber bracket.
Air brake line loose or broken:
Tighten or re-
pair.
5-5
Summary of Contents for 336C
Page 3: ...MODEL 336C CAR CARRIER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO...
Page 8: ......
Page 24: ...3 12 Figure 3 7 Lining Up the Over the Cab Deck Figure 3 8 Loading the Over the Cab Deck...
Page 28: ...3 16 Figure 3 11 Loading the Lower Deck...
Page 32: ...3 20 Figure 3 13 Rear Impact Guard and Antilock Brake System...
Page 40: ...4 6 Figure 4 3 336C Wiring Diagram...
Page 45: ...4 11 Figure 4 7 Checking Axle for Bend Figure 4 8 Examples of Camber...
Page 50: ...4 16 Figure 4 12 Axle and Brake Assembly...
Page 54: ...4 20 Figure 4 14 Outboard Mount Hub and Drum Figure 4 15 Inboard Mount Hub and Drum...
Page 59: ...4 25 Figure 4 19 Mounting Tires and Wheels Figure 4 20 Stud Tightening Sequence...
Page 70: ...NOTES 5 10...