GENERAL MAINTENANCE INSTRUCTIONS
Refer to WP 0108 00 for General Wiring Repair instructions.
These general maintenance instructions contain general shop practices and specific methods you must be familiar with
to properly maintain the CB534B and CB534C Rollers, Motorized, Vibrating Tandem Steel Drums. You should read and
understand these practices and methods before starting maintenance tasks on the roller.
Before starting a task, think about the risks and hazards to your safety as well as others. Wear protective gear such as
safety goggles or lenses, safety shoes, rubber apron or gloves. Protect yourself against injury.
Observe all WARNINGs and CAUTIONs.
When lifting heavy parts, have someone help you. Make sure that lifting equipment is working properly, that it is suit-
able for the task assigned, of sufficient load capacity and is secured against slipping.
Always use power tools carefully.
Before beginning a procedure, ensure that the following conditions have been observed, unless otherwise specified:
Roller must be parked on level ground with drums chocked.
Engine must be off.
Components which are hot at operating temperatures (i.e., cooling, exhaust and hydraulic systems) must cool
down before they are removed.
Components must, however, be at operating temperature to be tested.
Battery disconnect switch must be in OFF position or batteries disconnected when performing electrical system
Hydraulic system pressure must be relieved before disconnecting any hydraulic system line or fitting.
Before beginning a task, find out how much repair, modification or replacement is needed to fix the roller as described
in this manual. Sometimes the reason for roller failure can be seen right away and complete teardown is not necessary.
Disassemble the roller only as far as necessary to repair or replace damaged or broken parts.
All tags and forms attached to the roller must be checked to learn the reason for removal from service. Check all Modi-
fication Work Orders (MWOs) and Technical Bulletins (TBs) for equipment changes and updates.
In some cases a part may be damaged by removal. If the part appears to be good, and other parts behind it are not defec-
tive, leave it on and continue the procedure. Here are a few simple rules:
Do not remove dowel pins or studs unless loose, bent, broken or otherwise damaged.
Do not pull bearings or bushings unless damaged. If you must get at parts behind them, pull out bearings or bush-
Replace all gaskets, seals, O-rings, preformed packings, cotter pins, spring pins, locknuts, and lockwashers.