WÄRTSILÄ PAAE051728, Instruction Manual

Page: 285 / 394

7 Protect the connections
with suitable plugs, clean plas-
tic or similar.
18.3.3 Dismantling
1 Remove and inspect the regulating valve according to
section 18.4.
2 Remove the pressure plate (4) by loosening the fasten-
ing screws (3).
3 Pull off the gear wheel (1) without using any tool. If the
gear wheel does not come loose, a few strokes with a non-re-
coiling hammer will help. (The friction ring elements come
loose together with the gear wheel.)
Using an extractor will only damage the shaft (axial scratches).
4 Withdraw the pump cover by using two of the fastening
screws in the two threaded holes located in the cover.
18.3.4 Inspection
1 Check all parts for wear (chapter 06., section 06.2) and
replace worn parts.
2 Remove worn bearings from the sleeves and the housing
by driving them out with a suitable mandrel.
3 Mount new bearings (freezing is recommended) so that
the bearings are two 2 mm below the sleeves and housing level,
Fig 18-2. Be careful so that bearing lubrication grooves (12)
slide into the right position according to section A-A in Fig 18-2.
4 Mount the sleeves in the cover. Notice position of the
sleeves!
5 Check the bearing diameter after mounting. Check the
gear wheel axial clearance (see chapter 06., section 06.2).
18.3.5 Assembling
1 Clean all details carefully before assembling. Check
that the O-ring in the cover is intact and in position.
2 Before installing the gear wheel, all contact surfaces
should be cleaned and oiled.
3 Reinstall the friction ring elements (2).
32-200052 Lubricating Oil System 18
WÄRTSILÄ 32 18 - 5