Mitsubishi Grandis. Manual - part 984

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-26

LUBRICATION AND SEALING POINTS

DISASSEMBLY SERVICE POINTS
<<A>> RACK SUPPORT COVER 
REMOVAL

AC313223AB

Grease: Silicone grease

Fluid: 
     ATF DXRON III or 
     DEXRON II

Grease: Repair kit grease
Fluid: 
     ATF DXRON III or 
     DEXRON II
Sealant: 
     3M ATD Part No. 8661, 8663
     or equivalent

Grease: 
     Multipurpose grease 
     SAE J310, NLGI No.2 
     or equivalent

Fluid: 
     ATF DXRON III or 
     DEXRON II

Grease: Repair kit grease
Fluid: 
     ATF DXRON III or DEXRON II

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-27

Use special tool MB991621 (rack support cover 
wrench) to remove the rack support cover.

<<B>> CIRCLIP REMOVAL

CAUTION

If the rack stopper is first turned anticlockwise, 
the circlip will get caught in the slot in the 
housing and the rack stopper will not turn.

1. Turn the rack stopper clockwise until the end of 

the circlip comes out of the slot in the rack 
housing.

2. Turn the rack stopper anticlockwise to remove the 

circlip.

<<C>> RACK STOPPER/RACK 
BUSHING/OIL SEAL/O-RING/RACK 
ASSEMBLY REMOVAL

1. Pull out the rack slowly. Take out the rack stopper 

and the rack bushing at the same time.

CAUTION

Do not damage the oil seal press fitting surface.

2. Partially bend the oil seal and remove it from the 

rack bushing.

<<D>> SEAL RING REMOVAL

CAUTION

When cutting the seal ring, be careful not to 
damage the pinion and valve assembly or the 
rack.
Cut the seal ring and remove it from the pinion and 
valve assembly or the rack.

<<E>> OIL SEAL REMOVAL

CAUTION

Be careful not to damage the inner surface of the 
rack cylinder of the gear housing.

Use a piece of pipe or similar tool to remove the oil 
seal from the gear housing.

AC302679

MB991621

AC

76

ACX01146 AB

Circlip

Rack stopper

ACX01147 AB

ACX01148 AB

Rack bushing

AC100259

Oil seal

Pipe or similar tool

Gear housing

AB

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-28

<<F>> GEAR HOUSING MOUNTING 
BUSHING REMOVAL

Use the following special tools to remove the gear 
housing mount bushing.

• Installer cap (MD998812)

• Installer 100 (MD998813)

• Installer adopter (MD998822)

• Bearing installer (MD998368)

ASSEMBLY SERVICE POINTS
>>A<< GEAR HOUSING MOUNTING 
BUSHING INSTALLATION

Use the following special tools to press-fit the gear 
housing mount bushing.

• Camshaft oil seal installer (MD999569)

• Lower arm bushing arbor (MB990996)

>>B<< OIL SEAL INSTALLATION

1. Apply a coating of ATF DEXRON III or DEXRON II 

to the both sides of the oil seal.

2. Using the following special tools, press the oil seal 

into the rack housing.

• MB991197: Bar (long type)

• MB991199: Oil Seal Installer

>>C<< SEAL RING INSTALLATION

As the seal ring extends after installing, compress 
the seal ring with special tool MB991317 (seal ring 
installer) or your hand. 

>>D<< RACK ASSEMBLY INSTALLATION

CAUTION

Do not close the vent hole in the rack with 
grease.

1. Apply a coating of repair kit grease to the rack 

teeth face.

2. Cover the teeth side of rack assembly with special 

tool MB991213 (oil seal protector).

AC210913

AC302797

AC

MD998368

MD998812

MD998822

MD998813

AC210914

AC302798

AC

MB990996

MD999569

AC100260 AG

MB991197

MB991199

Gear housing

AC210916

AD

MB991317

Seal ring

Rack assembly

ACX01154 AB

Seal ring and O-ring

Vent hole

ACX01155

Oil seal

MB991213

AI

POWER STEERING GEAR BOX AND LINKAGE

POWER STEERING

37-29

3. Apply ATF DEXRON III or DEXRON II to special 

tool, and to the outer surface of the seal ring and 
the O-ring.

4. Align the centre of the oil seal with the rack to 

prevent the retainer spring from slipping. Slowly 
insert the rack from power cylinder side.

>>E<< OIL SEAL/RACK BUSHING 
INSTALLATION

1. Apply the specified fluid to the outside of the oil 

seal and use special tool MB990927 (installer 
adopter) to press-fit the oil seal into the bushing 
end.

2. Apply ATF DEXRON III or DEXRON II to the oil 

seal inner surface and the O-ring.

3. Wrap the rack end with plastic tape, and push the 

rack bushing onto the rack.

>>F<< CIRCLIP INSTALLATION

CAUTION

Insert the circlip to the rack stopper hole while 
turning the rack stopper clockwise.

Insert the circlip to the rack stopper hole through 
cylinder hole. Turn the rack stopper clockwise and 
insert the circlip firmly.

>>G<< RACK SUPPORT COVER/LOCK 
NUT INSTALLATION

1. Position the rack at its centre.
2. Apply specified sealant to the threaded part of the 

rack support cover.

Specified sealant:
3M ATD Part No.8661, 8663 or equivalent

3. Use special tool MB991621 (rack support cover 

wrench) to tighten the rack support cover to 23 
±2N⋅m.

4. Turn the rack support cover 30

° anticlockwise.

5. Use the special tool to hold the rack support 

cover, and then tighten the lock nut to 59 

± 10 

N

⋅m.

ACX01156 AE

Oil seal

O-ring

MB990927

Rack 
bushing

AC100261AC

Rack

Plastic tape

Rack bushing

ACX01158

Circlip

Slot

AB

Circlip

Slot

AC302770AC

MB991621