5.5 Checking and Cleaning the Gas Ballast Filter
For maintenance on the air filter, the cover half will have to be disassembled,
see Fig. 4.1.
Open the locking clips at the air filter and remove the dust cap from the air fil-
ter.
Use dry compressed air to blow out the filter.
When blowing out with compressed air, protect your eyes and wear pro-
tective goggles.
Apply an open jaw spanner (size 27) to the hexagon and unscrew the filter
element.
Blow out the filter element from the threaded side with compressed air.
Re-seal the thread with Teflon tape and fit the filter element once more.
Fit the dust cap again and affix it with the locking clips.
The cover is fitted in the reverse order as described in Section 4.1.1.
5.6 Replacing the Throttle in the Purge Gas Device
The throttle must be replaced every 2.5 years.
Remove the pump’s cover (see Fig. 4.1).
Pull the hose line off from the throttle at the gear housing. Press the ring
against the plug-in connection and pull the hose line off.
Unscrew the throttle with a 14 mm spanner.
Connect the new throttle to the hose line. Insert the hose right up to the
stop.
CAUTION
Fig. 5.2 Maintenance on the air filter at the gas ballast valve
1
2
2
3
4
5
1 Dust cap of the air filter
2 Locking clip of the air filter
3 Hexagon at the air filter (size 27)
4 Compressed air gun
5 Thread at the air filter
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