Charge Air Pipe, Leakage Check; Drive Belt And Alternator Belt, Inspection; Drive Belt, Replace - Volvo Penta TWD1672GE Manual

Maintenance
P0020410
58

Charge Air Pipe, Leakage Check

Inspect the condition of the charge air hoses, hose
unions and clamps for cracks and other damage.
Change as necessary.
Clamps must be tightened using a torque wrench to
9 ±2 Nm (6.6 ±1.5 lbf.ft.).
Drive Belt and Alternator Belt,
Inspection
WARNING!
Working with or approaching a running engine is a
safety risk. Watch out for rotating components and hot
surfaces.
IMPORTANT:
Always change a belt which looks worn or cracked.
Inspections must be carried out after operations, while
the belts are hot.
You should be able to depress the alternator belt and
the drive belt about 3-4 mm between the pulleys.
The alternator belts and drive belts have automatic belt
tensioners and do not need to be adjusted.
Check the condition of the drive belts. Replace as
necessary; refer to Alternator Belt, Replace, page 59
and Drive Belt, Replace, page 58.

Drive Belt, Replace

1 Disconnect the main switch(es) and check that the
engine is not connected to system voltage.
2 Remove the fan guard and fan ring round the
cooling fan.
3 Remove the belt guard.
4 Insert a 1/2" square wrench in the belt tensioner (1).
Lift the wrench and remove the drive belt.
5 Thread the drive belt round the fan and remove it.
6 Check that the pulleys are clean and undamaged.
7 Thread the new drive belt over the fan.
8 Lift the 1/2" wrench and install the new drive belt.
9 Install the belt guards.
10 Install the fan guard and fan ring round the cooling
fan.
11 Start the engine and do a function check.
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