Freightliner FLA/FLB/FLC/FLD/FLL. Manual — part 34
46–01 Steering Driveline
Lubricating
Wipe the steering driveline grease fittings clean. See
, and
. Using a pressure
gun, apply multipurpose chassis grease sparingly to
the universal joints and slip-joint splines. For an FLA
or an FLB, lubricate the slip-joint splines only when
the cab is in the operating position. Turn the front
wheels to the left for better access to the driveline.
46–02 TRW Manual Steering
Gear Lubricant
Checking, Model 503
1.
Remove the fill plug from the top of the steering
gear housing. See
WARNING
Use only an approved lubricant. Failure to add ap-
proved lubricant could adversely affect steering
ease under certain conditions and could hamper
vehicle control. This could lead to an accident re-
sulting in injury or property damage.
2.
Check the lubricant level. If low, add enough lu-
bricant to bring the level to within 1/2 inch (13
mm) of the fill hole. Use hypoid gear oil API ser-
vice classification GL–5 (with no zinc additive). At
operating temperatures continuously above 30°F
(–1°C) use viscosity grade SAE 90. At operating
temperatures continuously below 30°F (–1°C)
use viscosity grade SAE 75.
3.
Install and tighten the fill plug 14 lbf·ft (19 N·m).
46–03 TRW Manual Steering
Gear Lubricant
Changing, Model 503
NOTE: In climates with extreme temperature
changes, lubricant should be changed every six
months.
1.
While the steering gear lubricant is still warm,
remove the steering gear drain plug and drain
the old lubricant. Lubricant will drain faster if the
fill plug is also removed. See
. After all lu-
bricant has drained, install and tighten the drain
plug 14 lbf·ft (19 N·m).
f460005a
1
2
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1.
U-Joint Grease Fitting
2.
Steering Column End Yoke Pinch Bolt and Nut
Fig. 1, Steering Driveline Upper Universal Joint
f460006a
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1.
Intermediate Shaft U-Joint Grease Fitting
Fig. 2, Steering Driveline Intermediate Universal Joint
Steering
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WARNING
Use only an approved lubricant. Failure to fill the
steering gear with approved lubricant could ad-
versely affect steering ease under certain condi-
tions and could hamper vehicle control. This
could lead to an accident resulting in injury or
property damage.
2.
Fill the steering gear with clean lubricant to
within 1/2 inch (13 mm) of the fill hole. Use hy-
poid gear oil API service classification GL–5 (with
no zinc additive). At operating temperatures con-
tinuously above 30°F (–1°C) use viscosity grade
SAE 90. At operating temperatures continuously
below 30°F (–1°C) use viscosity grade SAE 75.
3.
Install and tighten the fill plug 14 lbf·ft (19 N·m).
46–04 Drag Link and Power
Steering Cylinder
Lubricating
1.
Using a clean rag, wipe all dirt from both drag
link grease fittings, and if so equipped, both
power steering cylinder grease fittings. See
, and
2.
Using a pressure gun, apply clean grease at the
grease fittings until old grease is forced out of
the socket. Use multipurpose chassis grease
NLGI grade 2 (8% 12-hydroxy lithium stearate
grease) or NLGI grade 1 (6% 12-hydroxy lithium
stearate grease). Grade 2 is preferred.
46–05 Power Steering
Reservoir Fluid Level
Checking
WARNING
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.
f460007a
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1.
Slip Joint Grease Fitting
Fig. 3, Steering Driveline Slip Joint
f460044
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1
2
2
2
3
4
5
6
1.
Fill Plug
2.
Steering Gear Attachment Fasteners
3.
Drain Plug
4.
Pitman Arm Pinch Bolt and Nut
5.
Input Shaft End Yoke Pinch Bolt and Nut
6.
Input Shaft End Yoke U-Joint Grease Fitting
Fig. 4, TRW Model 503 Manual Steering Gear
05/28/93
f460009a
1
1.
Grease Fitting
Fig. 5, Drag Link (pitman arm end)
Steering
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1.
Clean around the power steering reservoir dip-
stick (fill cap) with a clean rag. Then remove the
dipstick (fill cap). See
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.
2.
With the power steering fluid at operating tem-
perature, check the fluid level on the dipstick. If
low, add enough fluid to bring the level up to the
full mark on the dipstick. See
for ap-
proved power steering fluid.
3.
Install the dipstick (fill cap) in the power steering
reservoir.
46–06 Power Steering
Reservoir Fluid and
Filter Changing
1.
For a 2-quart or a 4-quart power steering reser-
voir, remove the dipstick, thumbscrew or cover
capscrew, and cover. See
f460010a
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1.
Grease Fitting
Fig. 6, Drag Link (axle steering arm end)
05/28/93
f460048
1
1.
Grease Fitting (axle steering arm end)
Fig. 7, Power Steering Cylinder
f460012
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2
3
4
5
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1.
Dipstick T-Handle
2.
Thumbscrew
3.
Hose Fitting
4.
Gear-to-Reservoir Return Hose
5.
Reservoir-to-Pump Supply Hose
Fig. 8, 2-Quart Power Steering Reservoir, 2-Line
(typical)
Steering
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Approved Power Steering Fluids
Fluid Type
Approved Fluid
Automatic Transmission
Fluid
*
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
Union
Shell Rotella T
10W–40
10W–40
10W–40
15W–40
30W
*
Do not mix oil types. Refer to the text in this group for a detailed warning
statement.
Table 1, Approved Power Steering Fluids
2.
For a 9-quart power steering reservoir, remove
the dipstick, band clamp, cover O-ring, and
cover. See
3.
For a 2-line system, drain the power steering
reservoir by disconnecting the steering gear-to-
reservoir return hose from the reservoir. Catch
the fluid in a drain bucket. Cap the reservoir port.
For a 3-line system, drain the power steering
reservoir by disconnecting the steering gear-to-
reservoir return hose from the reservoir, and
catch the fluid in a drain bucket. Disconnect the
power steering pump-to-reservoir return (bypass)
hose from the reservoir fitting. Remove the fitting
from the reservoir, and connect it to the bypass
hose, then cap the bypass hose fitting and both
reservoir ports. See
or
4.
If equipped with a thumbscrew, remove the
thumbscrew and spring that hold the filter ele-
ment in the reservoir, and lift out the filter ele-
ment. Otherwise, lift out the spring and filter ele-
ment from the reservoir.
5.
Thoroughly clean the reservoir with a lint-free
cloth.
6.
Install a new filter element in the reservoir and
position the spring on top of the filter element. If
so equipped, install and hand-tighten the thumb-
screw to hold the spring and filter element in
place.
f460013
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2
3
08/11/93
4
5
6
1.
Dipstick T-Handle
2.
Band Clamp
3.
Hose Fittings
4.
Pump-to-Reservoir Return (bypass) Hose
5.
Gear-to-Reservoir Return Hose
6.
Reservoir-to-Pump Supply Hose
Fig. 9, 9-Quart Power Steering Reservoir, 3-Line
f460295a
1
3
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2
4
5
6
1.
Dipstick T-Handle
2.
Cover Capscrew
3.
Reservoir Cover
4.
Reservoir-to-Pump Supply Hose
5.
Pump-to-Reservoir Return (bypass) Hose
6.
Gear-to-Reservoir Return Hose
Fig. 10, 2-Quart Power Steering Reservoir, 3-Line
Steering
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