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4. Install the coolant temperature and oil
pressure senders.
4.1 Drain the engine oil and coolant. See the
operation manual for more information regarding
oil and coolant drain locations. Dispose of the oil
and coolant in an environmentally safe manner.
4.2 For 40EOZD/EOZC & 33EFOZD/EFOZC and
125--180EOZD/EOZC & 100--150EFOZD/EFOZC
Models:
4.2.1 Remove and discard the reducer bushing
(X-202-47) and petcock (X-256-3). See
Figure 14 or Figure 17.
4.2.2 Coat the threads of coolant temperature
sender (GM50536) with pipe sealant.
4.2.3 Insert the coolant temperature sender into
the engine block where the reducer
bushing and petcock was located. See
Figure 14 or Figure 17.
4.3 For 55--99EOZD/EOZC & 40--80EFOZD/EFOZC
Models:
4.3.1 Remove and discard the engine pipe plug.
SeeFigure15orFigure16.
4.3.2 Coat the threads of the coolant
temperature sender (GM50536) with pipe
sealant.
4.3.3 Insert the coolant temperature sender into
the engine block where the engine pipe
plug was located. See Figure 15 or
Figure 16.
4.4 Close the coolant drain(s).
4.5 Fill the cooling system with fresh coolant. Follow
the instructions in the operation manual.
Note: Pay special attention to the coolant level.
After the coolant has been drained, allow
time for a complete refill of the engine
water jacket. Check the coolant level as
prescribed in the prestart checklist of the
operation manual.
Note: Engine Damage! Failure to bleed air from
the coolant system may cause
overheating and subsequent engine
damage.
4.6 Remove and discard the engine’s pipe plug at the
location shown in Figure 14, Figure 15,
Figure 16, or Figure 17.
Note: 99 kW units and below: Located on the
non-service side, left-most oil fitting under the
starter.
100 kW units and above: Located on the
service side, under the engine fuel filters (tucked
slightly behind the closed crankcase canister’s
mounting bracket).
4.7 Coat the threads of the 45_ elbow (267428) and oil
pressure sender (GM51459) with pipe sealant.
4.8 Insert the 45_ elbow and the oil pressure sender
where the pipe plug was located. See Figure 14,
Figure 15, Figure 16, or Figure 17.
4.9 Replace the engine oil.
2
1
JK-250000B-T
1. Remove pipe plug and install 45_ elbow (267428) and oil
pressure sender (GM51459)
2. Remove reducer bushing and petcock and install coolant
temperature sender (GM50536)
Figure 14 Sender Location (40EOZD/EOZC and
33EFOZD/EFOZC Models)
JL-250000B-U
1. Remove pipe plug and install coolant temperature
sender (GM50536)
2. Remove pipe plug and install 45_ elbow (267428) and
oil pressure sender (GM51459)
1
2
Figure 15 Sender Location, Typical
(55--65EOZD/EOZC and
40--50EFOZD/EFOZC Models)