Perkins 1104D Operation And Maintenance Manual page 103

SEBU8172-04
Illustration 69
Typical example
(1) Belt tension gauge
Fit the gauge (1) at the center of the longest free
length and check the tension. The correct tension for
a used belt is 355 N (79.8 lb). If the tension of the
belt is below 250 N (56 lb) adjust the belt to 355 N
(79.8 lb).
Note: The correct tension for a new belt or new belts
is 535 N (120 lb). A higher tension is required in
order to compensate for the stretch that is in a new
belt. Only use the higher tension on a belt that has
not been used. A used belt is a belt that has been in
operation for 30 minutes or a longer period of time.
If twin belts are installed, check and adjust the
tension on both belts.
Adjustment
Illustration 70
Typical example
1. Loosen nut (2) and the bolt (3).
2. Move the alternator in order to increase or
decrease the belt tension. Tighten the nut (2) and
the bolt (3) to 22 N·m (16 lb ft).(1).
Replace
Refer to Disassembly and Assembly manual, "V-
Belts - Remove and Install" for more information.
Walk-Around Inspection
g01003936
Inspect the Tube of the Crankcase
Breather
Illustration 71
Inspect the breather tube (1) for damage. Ensure that
the outlet (2) is clean and free from any obstructions.
Ice can cause obstructions in adverse weather
conditions.
Inspect the Engine for Leaks and
for Loose Connections
A walk-around inspection should only take a few
minutes. When the time is taken to perform these
checks, costly repairs and accidents can be avoided.
For maximum engine service life, make a thorough
inspection of the engine compartment before starting
the engine. Look for items such as oil leaks or
g01427780
coolant leaks, loose bolts, worn belts, loose
connections and trash buildup. Make repairs, as
needed:
103
Maintenance Section
Walk-Around Inspection
i03577563
g01905095