Remove/install steering gear

AR46.20-B-0500D

Remove/install steering gear

09.03.2020

Steering gear

766.111/117

Steering gear

766.111/402/490/491/492/494

Steering gear

766.117

Steering gear

766.490/491/493

Steering gear

766.493

1

Plug

2

Pressure tubes

3

Return Line

4

Steering bar

6

Bolt

5

Pitman arm

7

Extractor

 

Remove/install

1

Remove the left front wheel

.

AR40.10-B-1100B

 After traveling the first 50-100 km, retighten the wheel lock nuts

2

Remove the plug (1) to bleed the steering gear housing oil

 Collect the bled oil of steering system in a proper container to dispose according to environment protection standards.

3

Turn the flywheel to the left, until the stop

4

Run the motor for up to 10 seconds to bleed the pump and tank oil

5

Turn off motor and turn the flywheel several times, from stop to stop, until the steering gear housing oil does not stop bleeding

6

Loosen and disconnect the pressure line (2) from the steering gear housing

 Cover the line hole and steering gear housing to prevent dirt intake.

7

Loosen and disconnect the return pipe (3) from the steering gear housing

 Cover the line hole and steering gear housing to prevent dirt intake.

8

Extract the tie rod (4) from Pitman arm (5)

.

AR46.40-B-0100-01A

 Puller

*601589043300

9

Extract the Pitman arm (5)

 Installation: Assemble the Pitman arm observing the alignment of assembly marks, tighten the fastening nut and lock it with the cotter pin.
If the hole to the cotter pin in sector shaft does not match with the castle nut detent, the match shall be done always tightening the nut and never loosening it.

 .Pitman arm nut

*BA46.20-B-1002-01A

 Puller

*674589003500

 Puller

*655589003500

10

Loosen the fastening screw (6) from universal joint and remove the steering shaft with universal joint and flywheel

 In vehicles with tie rod (bus), remove the flywheel, loosen the steering column fastening and remove the full column.

 Installation: Before installing the steering shaft with flywheel and universal joint in the steering gear housing, place the front wheel in idle position in line.

11

Unlock and remove the fastening screws from the steering gear housing support

 .Mounting bolt for steering gear bracket

*BA46.20-B-1004-01A

12

Remove the vehicle steering gear housing with support

13

Unlock and remove the fastening screws from the steering gear housing to the support

 .Bolt to mount steering gear on bracket

*BA46.20-B-1003-01A

14

Install in reverse order

 Steering gear

Number

Designation

Steering gear case 766.1

BA46.20-B-1002-01A

Pitman arm nut

M-35

Nm

400

M-36

Nm

-

M-42

Nm

500

 Steering gear

Number

Designation

Steering gear case 766.1

BA46.20-B-1003-01A

Bolt to mount steering gear on bracket

Nm

280

 Steering gear

Number

Designation

Steering gear case 766.1

BA46.20-B-1004-01A

Mounting bolt for steering gear bracket

Nm

180