PART 8: MAINTENANCE AND SERVICE
PB1319 (CAT. NO. 5296 ) —126— 22-01691 (R02/02)
Steering Gear Lubrication
Inspection
1. Check the fluid level; add fluid if required.
2. Check fluid for contamination, discoloration, or burnt smell; correct
source of such problems before replacing fluid & filter.
Replacement
1. Replace both the fluid and filter in accordance with the chart on
the next page. (Note: Do not mix different types of fluids)
2. Bleed the system if necessary
.
*Extremely low temperatures may require lower viscosity fluids; con-
sult your Peterbilt dealer for recommendations
@See TRW or Sheppard Service Manuals for additional fluid listings
Servicing Specific Systems And Units
This section will help you keep your Peterbilt vehicle in good running
condition. There are a number of checks you can do, and you may be
able to do some of the service work yourself. But please: let your
dealer’s service department do any work you don’t have the tools or
skill to perform. Authorized service mechanics are trained in the proper
technical and safety procedures to fix your Peterbilt vehicle right.
CAUTION: When adding fluid, be sure to use fluid of the
same type. Do not mix different fluids. While many flu-
ids have the same description and intended purpose,
they should not be mixed due to incompatible additives.
If incompatible (insoluble) fluids are mixed in a power
steering system, air bubbles can be produced at the
interface of the two fluids. This can cause cavitation,
which reduces the lubrication between moving parts in
the gear. This could result in worn components.
NOTE: Before removing reservoir cover, wipe outside of cover
so that no dirt can fall into the reservoir.
Steering
Gear
Fluid * Inspect
[miles(km)]
Replace
(miles/months)
TRW Type C-4 Fluid Every 15,000
(24,000)
Every 240,000
(384,000)/24
Sheppard Type C-4 Fluid Every 15,000
(24,000)
Every 240,000
(384,000)/24
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