Mitsubishi Pajero Pinin. Manual — part 261
STEERING –
Special Tools
37A-5
SPECIAL TOOLS
Tool
Number
Name
Use
MB990635,
MB991113 or
MB991406
Steering linkage
puller
Tie rod end disconnection
MB990326
Preload socket
Ball joint turning torque measurement
MB990993
Power steering oil
pressure gauge
adapter
(pump side)
Oil pressure measurement
MB990994
Power steering oil
pressure gauge
adapter
(hose side)
MB990662
Oil pressure gauge
assembly
MB990803
Steering wheel
puller
Steering wheel disconnection
MB991006
Preload socket
Total pinion torque measurement
MB991621
Rack support
cover wrench
D
Rack support cover removal
D
Total pinion torque adjustment
STEERING –
Special Tools
37A-6
Tool
Use
Name
Number
MB991197
Bar (long type)
Gear housing oil seal press fitting
MB991199
Oil seal installer
MB991213
Oil seal protector
Rack assembly installation
MB990925
Bearing and oil
seal installer set
Oil seal and bearing press fitting
(Refer to GROUP 26 – Special Tools.)
MB991203
Oil seal and
bearing installer
Valve housing oil seal and bearing press
fitting
MB991317
Seal ring installer
Pinion seal ring compression
MB990941
Torque tube
bearing installer
Valve housing lower oil seal press fitting
MB991561
Boot band
crimping tool
Bellows band installation
MB990776
Front axle base
Dust cover press fitting
STEERING –
On-vehicle Service
37A-7
ON-VEHICLE SERVICE
STEERING WHEEL FREE PLAY CHECK
1.
With the engine running (hydraulic pressure operating),
put the front wheels in straight-ahead position.
2.
Lightly turn the steering wheel left and right to measure
circumferential play on the steering wheel before the
wheels start to move.
Limit: 30 mm or less
3.
When the play exceeds the limit, check steering shaft
connections and steering linkage for looseness. Repair
or replace if necessary.
4.
If the play still exceeds the limit, put the steering wheel
in straight-ahead position with the engine stopped. Then,
load 5 N in the circumferential direction on the steering
wheel and measure circumferential play.
Standard value: 0 – 10 mm
5.
In case the play exceeds the standard value again, remove
the steering gear box and linkage. Then, check and adjust
total pinion torque. (Refer to P.37A-18.)
STEERING ANGLE CHECK
1.
Put the front wheels on a turning radius gauge and measure
steering angle.
Standard value:
Inner wheels
34
_
40’
±
2
_
Outer wheels <For reference>
32
_
10’
2.
If the standard values are not met, toe-in is probably
incorrect. Adjust the toe-in, seeing GROUP 33A –
On-vehicle Service, and recheck the steering angle.
TIE ROD END BALL JOINT STARTING TORQUE
CHECK
1.
Use the special tool to disconnect the tie rod and knuckle.
Caution
(1) In order not to damage the ball joint thread, the
tie rod end mounting nut must be only loosened
but not removed from the ball joint. Also, be sure
to use the special tool.
(2) Tie the special tool with a cord so as not to fall
off.
Cord
Ball joint
Nut
MB990635,
MB991113 or
MB991406
STEERING –
On-vehicle Service
37A-8
2.
After swinging the ball joint stud several times, install the
nut on the stud. Then, measure ball joint turning torque
with the special tool.
Standard value: 0.5 – 2.5 Nm
3.
When the torque is over the standard value, replace the
tie rod end.
4.
When the torque is below the standard value, check the
ball joint for looseness or ratcheting. If none of these found,
the ball joint is still serviceable.
STATIONARY STEERING EFFORT CHECK
1.
With the vehicle stopped on a flat, paved surface, put
the steering wheel in straight–ahead position.
2.
Start the engine and keep it at 1,000
±
100 r/min.
3.
Attach a spring balance to the steering wheel outer bar.
Measure steering effort required to turn the steering wheel
from the straight-ahead position to the left and right (within
a range of 1.5 turns). Also see that no significant fluctuation
is present in the steering effort.
Standard value:
Steering effort
27 N or less <Limit: 30 N or less>
Fluctuation
5.9 N or less
4.
If the standard values are not met, check and adjust the
related parts.
STEERING WHEEL RETURNABILITY CHECK
Check returnability as follows on road test:
1.
Make both gradual and sudden turns and see by your
own feeling that the steering effort and returnability have
no difference between the left and right turns.
2.
At a speed of about 35 km/h, turn the steering wheel
90
_
, keep it there for 1 to 2 seconds and release. When
the steering wheel returns more than 70
_
, it has a good
returnability.
NOTE
You may have momentary increase in effort when turning
the steering wheel quickly, which is normal. This happens
due to insufficient job of the oil pump when the engine
is running at low speed such as idling.
OIL PUMP BELT TENSION CHECK
Refer to GROUP 11A – On-vehicle Service.
MB990326
70
_
70
_
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