Chevrolet DB90 Series, Service Manual

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S ec. 9B -186__________
POWER STEERING
POWER STEERING TORQUE SPECIFICATIONS
LOCATION
TYPE OF
PART
TORQUE
(FT.-LBS.) LOCATION
TYPE OF
PART
TORQUE
(FT.-LBS.)
Steering Gear to Frame Bolt
Conventional Cab M odels..................
Series RM-80...................................
Steel Tilt Cab M odels.......................
Pitman Arm to Shaft
Conventional Cab Models— Pinch B o lt..
Series RM-80...................................
Series D /F-90— Pinch Bolt................
Steel Tilt Cab M odels.......................
Steering Gear Adjustments
Lash Adjuster Screw ........................
Side Cover to Housing.......................
Wornh Bearing Adjuster Plug
ExCept 568-DV-64..........................
Type 568-DV-64............................
Contitol Valve to Steering Gear
Except 568-DV-74..........................
Contitol Valve Adapter to Steering Gear
Type 568-DV-74............................
Control Valve to
Ad&pter Type 568-DV-74................
Pressure Hose Union........................
Hose | Fittings to P o rts.......................
Power Steering Cylinder
Anchor Bracket to Fram e B o lt............
Power p eerin g Cylinder
Anchor Bracket to Axle B o lt..............
Power Steering Cylinder
to Pitman Arm S tu d * .......................
Power $teering Cylinder
Anchbr Bracket to Tie Rod U -B o lt......
Power p eerin g Cylinder
Ball $tud Socket Clamp Bolt.............
Nut 50-60
Nut 90-110
Nut
90-110
Nut 150-175
Nut 250-300
Nut
100-125
Nut 185-215
Nut 25-35
Bolt 25-35
Nut 50-110
Nut 50-75
Bolt 35-45
Bolt 25-30
Bolt 15-20
—
30-40
-
20-30
Nut
50-60
Nut 50-60
Nut 125-150
Nut 35-45
Bolt 50-60
Power Steering Cylinder to R.H. Idler
Arm Stud* With F-160 Front A x le . . . .
R.H. Idler A rm -W ith F-160 Front Axle
Support Bracket to Frame Bolt.........
Idler Arm to Idler Shaft Clamp B o lt...
Drag Link to Pitman Arm Stud*
Conventional Cab Models.................
Drag Link to Idler Lever Stud*
Series RM-80..................................
Tilt Cab M odels..............................
Drag Link to Steering Arm S tu d *.........
R.H. Drag Link to Idler Arm Stud*
With F-160 Front A xle.....................
Power Steering Junction Block to
Frame Bolt With F-160 Front Axle . . .
Reservoir Mounting Bracket to Sup p ort..
Reservoir to Mounting B rack et............
Oil Cooler to Support Bracket..............
Vane Type Hydraulic Pump
Mounting Bolt or Stud.....................
Port Fitting....................................
Slipper Type Hydraulic Pump
Reservoir Cap S crew .......................
Pressure Relief V a lv e ......................
Front Insert N ut.............................
Tie Rod to Steering Arm Stud*
Except F-070 Front A xle..................
With F-070 Front A x le .....................
Tie Rod End Clamp Bolt
Except F-070 Front A xle..................
With F-070 Front A x le ..................
♦Tighten Nut to Specified Torque. Then Advance to Next Aligning
Slot and Install a New Cotter Pin to Secure.
Nut
125-150
Nut 50-60
Nut 100-110
Nut 125-150
Nut
125-150
Nut 125-150
Nut 125-150
Nut 125-150
Nut 20-25
Bolt 20-25
Bolt 20-25
Bolt 10-15
_
25-40
—
25-40
_
15-20
—
30
— 95-105
Nut
125-150
Nut 150-180
Nut 65-75
Nut 80-100
All torques for F-160 Front Axle are applicable for the FL-901 Front Axle.
POWER STEERING FLUID
GM APPROVED POWER STEERING FLUID IS AVAILABLE THROUGH
WHOLESALE WAREHOUSES AND TRUCK CENTERS. CHECK FLUID LEVEL
EVERY 6,000 MILES OR FOUR MONTHS, WHICHEVER OCCURS FIRST. IF
GM POWER STEERING FLUID IS NOT AVAILABLE, DEXRON AUTO­
MATIC TRANSMISSION FLUID MAY BE USED.
CAUTION: DO NOT USE GM POWER STEERING FLUID IN AUTOMATIC
TRANSMISSION.
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL SUPPLEMENT