46–03 Power Steering
Reservoir Fluid Level
Checking
1. Clean around the power steering reservoir dip-
stick (fill cap) with a clean rag, then remove the
dipstick. See Fig. 3.
WARNING
Fill only with approved clean fluid. Do not mix
fluid types. Any mixture or any unapproved fluid
could lead to seal deterioration and leaks. Fluid
leakage could cause loss of power steering assist.
Failure to keep the power steering reservoir full
could result in damage to the power steering
pump, and improper operation of the power steer-
ing system.
2. With the power steering fluid at operating tem-
perature, check the fluid level on the dipstick. If
below the ADD mark, add enough fluid to bring
the level up to the full mark on the dipstick. See
Table 1 for approved power steering fluid.
Approved Power Steering Fluids
Fluid Type Approved Fluid
Automatic Transmission
Fluid Type
*
Dexron
®
II
Dexron
®
III
Heavy-Duty Engine Oil
*
IMPORTANT: Do not use
heavy-duty engine oil in
vehicles built from
November 4, 2002.
Union
Texaco
Chevron
Mobil Super
Union
Shell Rotella
10W–40
10W–40
10W–40
10W–40
15W–40
T30W
*
Do not mix engine oil with automatic transmission fluid (ATF). Use the
same lubricant for parts as is used in the power steering system.
Table 1, Approved Power Steering Fluids
3. Install the dipstick (fill cap) in the power steering
reservoir.
46–04 Power Steering
Reservoir Fluid and
Filter Changing
1. Remove the dipstick, 3/8–16 hexnut, and cover.
See Fig. 3.
2. Drain the power steering reservoir by disconnect-
ing the power steering gear-to-reservoir hose
from the reservoir. Keep the hose in an upright
position to prevent drainage of fluid.
f460926
10/05/94
1
2
1. Grease Fitting
2. Drag Link (pitman arm end shown)
Fig. 2, Steering Drag Link Lubricating
f460514a
10/05/94
1
2
1. Power Steering Fluid Reservoir
2. Steering Gear
Fig. 3, Power Steering Reservoir
Steering46
Business Class Trucks Maintenance Manual, November 200246/2
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