Grammer MSG95EAC - Page 48

Repair manual GRAMMER seat suspension MSG95EAC – November 2012
Material no. 1 277 338
3.10 Air spring – removal and installation
Page 1 of 2
Removal and installation
ATTENTION Leak test!
Hydraulic test of the seat suspension
should be performed upon installation of
the air spring (1). To do this, apply a 60 kg
load to the seat suspension for 24 hours.
The lowering within this time must not
exceed 15 mm.
1 Remove the seat (see Chapter 3.1).
2 Remove the bellows at the upper
suspension part (see Chapter 3.3) and
press it down.
3 WARNING Risk of crushing!
Move the seat suspension to the
highest position and secure at the back
between the swinging structure and the
lower suspension part by means of
suitable spacers.
4 WARNING The pressure in the
pneumatic system may cause injury!
Vent the pneumatic system before
removing the air spring (1).
5 Pull the catch spring (7) out of the air
spring (1).
6 Pull the quick couplings (3) of the air
hoses (4, 5) out of the air spring (1).
Installation notes:
• First, plug the catch spring (7) into
the air spring (1) and then plug the
quick couplings (3) into the air spring
(1) with an audible click.
• Connection at the front (6):
Air hose (5) between air spring and the
connection of the air distributor at the
front.
• Connection at the back (2):
Air hose (4) between air spring and the
connection of the air distributor at the
back.
7 Undo the countersunk screw (10) from
the air spring (1).
Installation notes:
• Countersunk screw (10), 6 Nm.
• The internal thread collar (arrow) at
the bottom of the air spring (1) must lie
flush on the cone (arrow) in the lower
suspension part (9).
8 Turn the air spring (1) by 90° until the
bayonet catch fits through the
longitudinal hole in the swinging
structure (8).
10
9
1
8
90°
1
9
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