IS 24 - 27 - 25T - 30T - 34T
- 38
GB
GB
8Kg - 5mm
1
2
3
5
6
6.14 S
EAWATER
PUMP
MAINTENANCE
At least once a year check the integrity of the rubber
seawater pump impeller.
Before opening the seawater pump to inspect the
impeller, drain the seawater from the cooling system
as described in paragraph 6.12.
To access the impeller, remove the cover (ref.5) and
use pliers to extract the impeller (ref.6), pulling it hard
towards the outside.
To refit a new impeller, repeat the operations
described above working in reverse order.
6.15 C
HECKING
/
REPLACING
THE
V
-
BELT
#
Do not open the doors or hold the hands close to the
V-belts and pulleys when the engine is running.
A V-belt is used to transmit the rotation motion from the
drive shaft pulley to the seawater pump pulley (ref.1).
A too tight belt accelerates wear, while a too slack belt
results in the pulleys running in idle and insufficient water
circulation.
Adjust the belt tension as follows:
Loosen the two adjusting screws (ref.2) and move the
seawater pump towards the outside to increase
tension or towards the inside to decrease it. Tighten the
screws and check the tension.
The belt tension is correct when it sags about 5mm
(ref.3) under a thrust force of 8kg
(17,7lbs)
.
To prevent the belt from idling, do not spill any oil
on it. If oil is spilled, clean it off with petrol.
Summary of Contents for I.S. 24
Page 2: ...IS 24 27 25T 30T 34T 2 I I...
Page 48: ...IS 24 27 25T 30T 34T 2 GB GB...
