Operation Manual

Job Card No.:
Engine:
Filing No.:
Coolant Circulation Pump
Servicing
0178-37-10 1815
© 0683
09.07.01
S/BVM 628
Job
Stop engine. Close shut-off valves in suction and delivery lines of water pump. Drain water by removing plug
(26). When replacing water seal (31), disconnect only suction line. For replacing oil seal (25), disconnect
delivery line also.
Removing Water Seal 31
Remove hex. bolts (2) along with spring lockwashers(3)..
Unscrew cap nut (34) (Job Card 09.07.02) and withdraw impeller (5). Take off water seal (31) with backing ring
(30), and O-seal (29). Clean all components.
Refitting Water Seal (31)
Inspect seat of seal on shaft (32) and smoothen shaft if required. Check backing ring (30) for hair-cracks and
O-seal (29) for damage. Renew as necessary. Push on backing ring along with O-seal. Apply alight film of
Deutz F2 compound to sealing lip of the new water seal (31) and push same into position. The contact
surfaces between water seal and backing ring must be absolutely free from dirt and compound. Place on
impeller (5), paying attention to dowel sleeve (35). Inspect O-seal (33), renewing if necessary.
Fit cap nut (34) - see job 09.07.02 -. Check O-seal (4) - renew if necessary - and secure intake (1) by means
of hex. bolts (2) complete with spring washers (3).
Connect suction line. Open valves. Fill in water (check its properties as detailed in Section 6.4). During trial run,
make sure that pump is free from leaks and water pressure is correct.
Removing and Refitting Oil Seal (25)
See Job Card 09.07.02.
For illustration, see Job Card 09.07.02
Job Card:
- 09.07.02
Servicing
Water leaks at outlet hole ”X” of bearing housing (9)
suggest defective seal (31); oil leaks suggest defec-
tive seal (25). Replace as necessary.
Tools:
- Standard tools
- Holding device for impeller (Sect. 1.8)
- Deutz F2 compound (Sect. 3.6)
- Deutz S4 compound (Sect. 3.6)