Permobil Koala, Руководство по обслуживанию

Страница: 19 / 32

19
Gas springs
There are gas springs built into the parallel tubes
at the sides of the seat lift. These gas springs are
part of the tilt mechanism.
Removal
1. Raise the seat to its highest position. To
operate the seat lift manually, see page 7.
2. Remove the battery cover and chassis cover,
see page 8.
3. Switch off the main switch on the control panel.
4. Put the circuit breaker to the “OFF” position,
see page 23, fig. 52.
5. Remove the bolt to detach the rear end of the
spring, see fig. 39:2 and 40:8. Lock the pivot
arm (40:2) by inserting a drift from underneath,
through the hole in the end of the parallel tube.
6. Remove the circlip from the front attachment
point, see fig. 39:1 and 40:3.
7. Remove the parallel tube complete with the
gas spring.
8. Remove the socket head cap screw that locks
the adjuster (40:1) and remove the tube.
9. Drive out the spring tension pin (40:5) and
remove the gas spring attachment (40:4).
10. Drive out the spring tension pin (40:7) and
remove the tube.
Fitting
Fitting is the reverse procedure
Slide bearings
Changing a bearing
The basic procedure for changing a bearing is the
same for all bearings
1. Remove the part where the bearing is to be
changed.
2. Deform the bearing by driving a drift through
the hole in the bearing seat, see fig. 41. Pull
out the deformed bearing using pliers.
3. Clean the bearing seat and press, or carefully
drive, in the new bearing. Turn the bearing so
that the slot is aligned with the hole used when
deforming the bearing, in order to make the
next bearing change easier.
4. Refit the part with the new bearing.
Seat lift
1
2
Do not drill into the tube or gas spring, and do
not expose them to heat, as this could cause an
explosion.
1
4
6
5
8
3
7
2
1. Bolt, MC6S
2. Pivot arm
3. Circlip, SgA 16
4. Gas spring attachment
5. Spring tension pin, 8 x 18
6. Gas spring
7. Spring tension pin, 8 x 20
8. Bolt, 8 x 16
Fig. 41. Hole for deforming the bearing.
Fig. 39. Parallel tube with gas spring.
Fig. 40. Parallel tube with gas spring.