power steering CITROEN C6 2005 User Guide

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AXLES
SUSPENSION
STEERING
The steering mechanism with integral ram is fixed on the front subframe by twostuds.
The steering assistance valve has groove technology.
The hydraulic supply and return pipes are fixed on the steering assistance valve by means of
a flange.
The adjustment of the steering push-rod is via a screw plug «a».
IMPERATIVE: The toothed washers «b» must be placed between the steering mechanism
and the front subframe.
Engines ES9A/DT17BTED4.
Steering rack travel: 90 mm x 2.
Number of teeth on the distributor valve pinion: 9.
Steering ratio: 1/61,26.
Number of rotations of steering wheel (from lock to lock): 2,94.
Inner angle of lock: 37°25'.
Outer angle of lock: 31°36'.
B3EP17TD
POWER STEERING SPECIFICATIONS
Steering mechanism
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AXLES
SUSPENSION
STEERING
(8)Steering assistance valve
(9)Steering mechanism with integral ram
(10)Low pressure piping
(11)High pressure piping
(12)Power steering pump
(13)LDS fluid reservoir
LDS fluid reservoir.
The LDS fluidreservoir supplies the suspension circuit as well as the steering assistance
circuit (fluid: LDS TOTAL H50126).
Steering assistance pump with constant flow (engines: ES9A, DT17).
The power steering pump is driven by the accessories belt.
A stepper motor incorporated in the steering assistance valve modulates the steering assistance
as a function of the vehicle speed.
Regulation pressure: 115 ± 5 bars.
Diameter of the pulley of the power steering pump.
Engine ES9A : 128 mm.
Diameter of the pulley of the power steering pump.
Engine DT17BTED4 : 100 mm.
B3EP17UD
POWER STEERING SPECIFICATIONS
Steering assistance circuit
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AXLES
SUSPENSION
STEERING
Setting the steering rack mid-point.
IMPERATIVE: Respect the precautions to be taken prior to any operation (refer to the
brochure "Recommendations-precautions").
Preliminary operation.
Raise and support the vehicle on 2-column lift.
Remove (on the RH side):
- The clip (1).
- The clip (2).
Detach the steering rack protection gaiter.
Setting.
Turn the steering wheel to full LHlock.
Measure the dimension X.
Turn the steering wheel to full RHlock.
Measure the dimension Y.
Calculate the dimension L = (Y - X) : 2.
Position the steering rack to the dimension "L"(mid point of the steering rack).
Additional operation.
Refit:
- The protection gaiter.
- The clip (2).
- The clip (1)(new).
B3EP13UCB3EP13VD
POWER STEERING SPECIFICATIONS
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AXLES
SUSPENSION
STEERING
POWER STEERING: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
1 Steering wheel bolt 3,3 ± 0,52 Upper nuts 2 ± 0,33 Lower nuts 2 ± 0,34 Fixing of steering cardan on valve stem 2 ± 0,35 Union of hydraulic pipe on ram 1,4 ± 0,356 Fixing of supply pipes bracket on distributor valve 0,8 ± 0,17 Fixing of distributor valve on steering mechanism 2 ± 0,28 Steering ball-joint nut 3,5 ± 19 Locking nut for adjustment of steering track rods 5,3 ± 0,810 Fixing of steering rack ball-joint 9,0 ± 0,911 Steering mechanism stud 0,9 ± 0,212 Steering mechanism nut 14 ± 1,4
B3EP17HDB3EP17GD
Steering column
Steering mechanism with integral ram
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AXLES
SUSPENSION
STEERING
POWER STEERING: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
13 Fixation of steering assistance pump on support 2,5 ± 0,614 Fixation of pulley on steering assistance pump 0,8 ± 0,215 Fixation of pulley on steering assistance pump 2,2 ± 0,316 Fixation of steering assistance pump on support 2 ± 0,3
B3EP17KCB3EP17JC
Steering assistance pump:
ES9A engineSteering assistance pump:
DT17BTED4 engine
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AXLES
SUSPENSION
STEERING
Checking the valve sealing.
Remove the exhaust line (3).
Move aside the heat shield from the steering mechanism.
Slacken the union (6)on the power steering ram.
Remove:
- The screw (4).
- The bracket (7).
Uncouple the two supply pipes (5)from the distributor valve, and move them aside.
Fit on the distributor valve the tool [6], tighten the screw to: 0,8 ± 0,1 m.daN.
Couple two pipes at the outlets of the pipes (5).
Move the steering slowly from lock to lock, to drain the ram.
Collect the LDSfluid in a tray.
Refit the exhaust line (3).
Open the tap [3e].
Start the engine.
Hold the engine speed between 1200and 1500 rpm.
Hold the steering at full lock to the right, then at full lock to the left.
The pressure should adjust to: 115 ± 5 bars.
B1JP08WDB3EP185D
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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AXLES
SUSPENSION
STEERING
Remove:
- The exhaust line (3).
- The tool [6].
Couple the two supply pipes (5)on the distributor valve.
Refit:
- The bracket (7).
- The screw (4), tighten to 0,8 ± 0,1 m.daN.
Retighten the union (6)on the power steering ram; tighten to 1,4 ± 0,35 m.daN.
Refit the exhaust line (3).
Pinch the pipe at "a", using tool [2].
Remove:
- The assembly [3].
- The union [5]on the pipe (2).
- The union [4]on the steering assistance pump.
Couple the pipe (2), using tool [1].
Tighten the pipe (2)to 2 ± 0,2 m.daN.
Refit the bracket (1).
Bleed the hydraulic steering assistance circuit (see corresponding operation).
Top up the level of the LDS fluid (see procedure: drain-fill-bleed the suspension circuit).
B1JP08WDB3EP185D
CHECKING THE STEERING ASSISTANCE PRESSURE (ES9A ENGINE)
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