Kohler 125EOZDJ/EOZCJ Installation Instructions

Original Issue Date: 11/14
Model: 125/150EOZDJ/EOZCJ & 100/125EFOZDJ/EFOZCJ with
Market: Marine
Subject: Block Heater Kits GM89494-KP1 & GM89494-KP2
Introduction
The engine block heater kit heats engine coolant,
making starting easier and warmup quicker. The block
heater automatically turns on when coolant temperature
drops to 27_C (80_F) or below and turns off when
coolant temperature reaches 38_C (100_F).
Models Volts Amps Watts Kit No.
125EOZDJ/EOZCJ
120
100EFOZDJ/EFOZCJ
150EOZDJ/EOZCJ
240
125EFOZDJ/EFOZCJ
Figure 1 Kit Selection
Read the entire installation procedure before beginning
the installation. Perform the steps in the order shown.
Safety Precautions
Observe the following safety precautions while installing
the kit.
WARNING
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on
Remove the negative (--) lead first
when disconnecting the battery.
Reconnect the negative (--) lead last
when reconnecting the battery.
INSTALLATION INSTRUCTIONS
Decision-Maker
r
12.5 1500 GM89494-KP1
6.3 1500 GM89494-KP2
the generator set.
3500 Controllers
Disabling the generator set.
cause severe injury or death.
generator set or equipment connected to the set, disable the
generator set as follows: (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) Remove the
battery cables, negative (--) lead first. Reconnect the negative
(--) lead last when reconnecting the battery. Follow these
precautions to prevent the starting of the generator set by the
remote start/stop switch.
Hot coolant and steam.
Can cause severe injury or death.
Before removing the pressure cap,
stop the generator set and allow it to
cool. Then loosen the pressure cap
to relieve pressure.
Allow the engine to cool. Release pressure from the
cooling system before removing the pressure cap. To
release pressure, cover the pressure cap with a thick
cloth and then slowly turn the cap counterclockwise to
the first stop. Remove the cap after pressure has been
completely released and the engine has cooled. Check
the coolant level at the tank if the generator set has a
coolant recovery tank.
Note: Air pockets often form in the engine water jacket
when the coolant system is refilled. Check the
coolant level in the coolant recovery tank after
each generator set operation and add coolant as
necessary until the level stabilizes. Check the
coolant at the interval specified in the service
schedule.
Note: Block heater damage. The block heater will fail
if the energized heater element is not immersed
in coolant. Fill the cooling system before turning
on the block heater. Run the engine until it is
warm, and refill the system to purge the air from
the system before energizing the block heater.
TT-1644 11/14
Accidental starting can
Before working on the
WARNING