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2
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1. Block heater (352945 or 352946)
2. Screws (M933-06020-60 qty. 4), washers (M125A-06-80
qty. 4), and hex nuts (M6923-06-80 qty. 4)
3. Bracket (GM32987)
4. Screws (M933-06020-60 qty. 2) and hex nuts (M6923-06-80
qty. 2)
5. Remove and discard pipe plug supplied with engine.
Install bushing (153659).
Figure 2 Block Heater(Installed Kit)
3.
Restore the generator set to service.
3.1
Check that the generator set is OFF.
3.2
Reconnect the generator set engine starting
battery, negative (--) lead last.
3.3
Reconnect power to the battery charger, if
equipped.
3.4
Test run the generator set for a few minutes to
check for coolant leaks and to purge air from the
system.
3.5
Stop the generator set. After allowing the engine
to cool, correct any leakage.
Note: Purge trapped air to prevent block heater
element failure. See the operation manual.
3.6
Recheck the coolant level. After draining the
cooling system, allow time for all air cavities in the
system to refill. Add coolant as necessary.
3.7
Connect the block heater electrical plug to the
power outlet.
TT-1643
11/14
4
5
8
7
6
6. Hose (X-312-57) and hose clamps (X-426-12 qty. 2)
7. Hose connector (X-582-1)
8. Street elbows (227642 qty. 2)
9. Hose (X-312-24) and hose clamps (X-426-12 qty. 2)
10. Street elbow (X-211-1)
11. Remove and discard plug supplied with engine.
Install O-ring (GM11694) and adapter bushing (GM22991).
Note: The inlet of the block heater is lower than the
outlet. The inlet hose should be cooler than the
outlet hose when the block heater is operating.
10
9
7
11
GM87771-A
3
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