RDG603A17 – Issue 1 – Shire 30_40_50 WB/RB Manual
Page 32 of 51
•
To check the coolant level, ensure that the engine has been shut down for at least
half an hour.
For Work Boats
•
The coolant level can be checked visually and should be between the two level
marks formed on the front of the white plastic expansion tank.
For River Boats
•
Remove the lid from the water cooled exhaust manifold/heat exchanger. The level
should be
½
” (13mm) below the filler neck.
For All Models
•
If required, top up the level with coolant (50% clean tap water and 50% ethylene
glycol based anti-freeze) through the expansion tank filler cap.
•
Do not use water only to top up as this weakens the coolant mix, reducing the level
of frost protection and anti-corrosion protection of the coolant.
10. Belt Adjustment
CAUTION:
REMOVE THE IGNITION KEY BEFORE WORKING IN ENGINE COMPARTMENT.
•
Depress the longest run of the drive belt to be checked. If the travel exceeds 15-
20mm using hard finger pressure, the belt needs re-tensioning.
•
Loosen the upper adjuster on the alternator. Loosen the lower mounting pivot nut
and bolt. Pull out either using hand pressure or using the tensioning screw,
depending on which alternator belt is to be tensioned.
•
Pull the alternator away from the engine to tighten the belt.
•
Hold the alternator in position and retighten all the bolts
Note: If the belts are over tightened, alternator bearing failure will occur.
11. Belt Maintenance
•
Do not allow oil to contact the belt. Oil attacks the construction of the belt. This
reduces the drive efficiency and ultimately cause it to fail prematurely.
•
Replace the belt if it cracks or splits and as the adjustment nears the limit of travel.
Note: Some boat builders may remove one or more of the alternators during the installation