TP-6953 7/19112 Section 6 Cooling System
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
Moving parts.
WARNING
Servicing the generator set when it is operating. Exposed
moving parts can cause severe injury or death. Keep
hands, feet, hair, clothing, and test leads away from the belts
and pulleys when the generator set is running. Replace
guards, screens, and covers before operating the generator
set.
Check the belt tension at the interval specified in the
service schedule. If tension is not within the
specification, adjust as necessary using the following
procedure.
6.8.1 Belt Tensioning Procedure
1. Check the seawater pump belt deflection (tension) here
2. Seawater pump pulley
3. Belt guard
4. Wing screw and belt guard mounting hardware (qty. 3)
5. Engine mounting brackets (qty. 3)
6. Pivot screw (underneath pulley in slotted hole)
7. Seawater pump adjusting screw
3
2
1
6
7
5
4
4
Figure 6 -21 Seawater Belt Tension
(14- 24EKOZD/12- 20.5EFKOZD Model
Shown)
2
GM95722-G
1. Engine-driven water pump pulley
2. Check the alternator belt deflection ( tension) here
3. Adjusting arm pivot screw
4. Alternator adjusting screw
5. Battery charging alternator pulley
6. Alternator pivot screw
7. Crankshaft pulley
Note: U nit shown with belt guard removed.
3
4
5
6
7
1
Figure 6-22 Alternator Belt Tension
(32- 40EKOZD/28- 35EFKOZD Model
Shown)
1. Press the generator set OFF/RESET button to shut
down the generator set.
2. Disconnect the power to the battery charger, if
equipped.
3. Disconnect the generator set engine starting
battery, negative (- ) lead first.
4. Remove the belt guard. See Figure 6-21.
5. Check the belt tension at the midpoint of the
longest span of the belt by pressing with your finger
approx. 10 kg (22 lbs.) of f orce. See Figure 6-23 for
belt deflection. Recheck a new belt tension after 10
minutes of operation.
Deflecti on mm (in.)
10 (0.4)
Figure 6-23 Belt Specification
Note: If the belt tension is not within specification,
go to step 3. If the belt tension is within
specifications, go to step 7.
6. Loosen the pivot and adjusting screws.
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