Thomas SAF-T-LINER C2, Maintenance Manual

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46–07 Power Steering Fluid
and Filter Changing,
Electric Vehicle
WARNING
Fill only with approved clean fluid. Failure to use
the proper fluid could cause seal deterioration and
leaks. Fluid leaks could eventually cause loss of
power steering assist. This could lead to an acci-
dent resulting in personal injury or property dam-
age. Wear eye protection when changing the fluid
and filter.
1. Apply the parking brake and chock the rear tires.
2. Place a drain pan under the power steering res-
ervoir.
3. Remove the retaining ring from the reservoir.
See
Fig. 3 .
4. Remove the filter and filter cover from the reser-
voir. Disconnect the filter from the filter cover and
discard the filter.
5. Remove the bolts, nuts, and washers that attach
the power steering reservoir to the mounting
bracket. Drain the fluid from the reservoir, but do
not remove the supply line to the reservoir.
6. Using bolts, nuts, and washers, attach the reser-
voir to the mounting bracket.
7. Fill the reservoir with an approved power steer-
ing fluid to the line between the MIN COLD and
MAX HOT lines. See
Fig. 3 . See Table 2 for ap-
proved power steering fluid.
Approved Power Steering Fluid, Electric Vehicle
Fluid Type
*
Approved Fluid
*
Automatic Transmission
Fluid
Dexron® VI
*
Do not mix fluid types. Refer to the text in this group for a detailed warn-
ing statement.
Table 2, Approved Power Steering Fluid, Electric
Vehicle
8. Raise the front of the vehicle and support it with
jack stands.
9. Start the engine and operate it at idle. Turn the
steering wheel from full left and full right several
times until clean fluid starts flowing from the
power steering filter cover. Add fluid to the reser-
voir to maintain the fluid level between the MIN
COLD and MAX HOT lines.
10. Shut down the engine. Apply a thin film of power
steering fluid on the gasket of a new filter. Then
attach the filter to the filter cover. Make sure that
the gasket under the filter cover is not damaged.
If the gasket is damaged, replace it. Install the
gasket on the reservoir. Install the filter and filter
cover in the reservoir.
11. Attach the retaining ring to the reservoir to se-
cure the filter and filter cover.
12. Start the engine and check that the power steer-
ing fluid level is between the MIN COLD and
MAX HOT lines. Add more fluid if needed.
13. Raise the vehicle, remove the jack stands, and
lower the vehicle.
14. Remove the chocks from the tires.
f461917
1
2
3
4
10/19/2001
1. Power Steering
Reservoir
2. Retaining Ring
3. Filter Cover
4. Return Hose
Fig. 3, Power Steering Reservoir
Steering
46
Saf-T-Liner C2 School Bus Maintenance Manual, August 2020
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