INFICON Helium Leak Detector Modul1000 - Manual (Page 80)

7-8
Maintenance tasks
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5 Unscrew the cover on the bottom of the TMH71 using a special tool (calliper face
spanner).
6 After removing the cover, the lubricant reservoir will be accessible. Pull out the
lubricant reservoir using a screwdriver and dispose it off according to local
regulations.
7 Insert new lubricant reservoir.
Refer to Fig. 7-4 .
8 Replace the O seal ( Fig. 7-4 /2) by a new O-seal. Verify that the new O-ring is inserted
in the proper position. An incorrectly inserted O-ring may cause large leaks and the
malfunction of the equipment.
9 Then assemble and tighten the cover.
Fig. 7-3 Cover of the lubricant reservoir TMH 071
Item Description Item Description
1 Fore-vacuum connection 3 Cover of the lubricant reservoir
TMH 071
2 Pocket for special tool 4 Inspection port
1
2
3
4
Caution
Do not press the lubricant reservoir completely in. The lubricant reservoir is properly
positioned by twisting in the cover. Also refer to the Operating Manual Differer PM
800 504 BN.