Subaru XT 1988 Service Manual page 796

SUSPENSION
SERVICE PROCEDURE FOR AIR (PNEUMATIC)
SUSPENSION
4-1
In this section are described the different points of the air
Front Air Suspension Assembly
(pneumatic) suspension from the explanations described in the
section of conventional suspension. Accordingly, use this
section together with the section of conventional suspension.
General Precautions
1) Be sure to support the vehicle with a jack before getting
under it for servicing. To check any system, other than elec-
trical, under the vehicle, disconnect cables from battery in
advance. Th is prevents the auto leveler from being activated
to take up increase or decrease in wheel reaction while the
ignition switch is ON.
2) When reassembling, do not reuse O-rings. Also be sure not
to damage O-ring and O-ring contact surfaces such as O-ring
groove. Apply grease to O-rings when reassembling.
Recommended grease and O-ring:
Grease NOK SEAlUB S-4
O-ring NOK Material A980
3) Do not apply an undercoating for local rust prevention to
the air bags (roll ing diaphragm surface and cylinder surface
with which the diaphragm is in rolling contact) and the air
compressor.
This is because, when the damper oil temperature increases
due to running on rough roads, the generated heat melts the
undercoating, which makes it easier to trap dust, dirt, and
sand on the surface, reSUlting in damaged diaphragm. The
undercoating on the air inlet of the compressor can also block
the vent.
4) When welding vehicle body, be sure to cover air pipe and
air spring diaphragm so that welding sputter will not attach to
these pa rts.
5) When replenishing battery electrolyte, be careful not to
have electrolyte come in contact with air pipe.
6) At transportation, retighten the ratchet another 2-3
notches with tie-down wire tightened up. (Retightening of one
notch is recommended for the all models of conventional coil
springs.)
The tighter tension is recommended because of its lower spring
constant as compared with that of the coil spring.
39
REMOVAL
Tightening torque: N·m (kg-m, ft-Ib)
T: 5 - 15 (0.5 - 1.5,3.6 - 10.8)
Vehicle body
Harness length to clip:
210 mm (8.27 in)
Vehicle height sensor
harness
L4-161
Fig. 61
Air pipe
/OT'--Bushing
CaP
!
I
( I It
~~~" .,,~"
disassembly.)
End of strut
Make sure O-ring is free from foreign
matter such as dirt and dust. L4-162
Fig. 62