SkyTrak 8042 Service Manual - Manual (Page 386)

7B.19 Model 8042, 10042, 10054 Legacy Rev. 10/03
Engine: Cummins QSB4.5T
7B.6.5 Block Heater Replacement
a. Engine Block Heater Removal
1. Level the vehicle, ground the attachment, place the
travel select lever in NEUTRAL (N) and engage the
neutral lock lever; engage the parking brake switch
and shut off the engine.
2. Remove the ignition key. Secure accident prevention
tags to the steering wheel and ignition key switch.
(Refer to
Section 1.5, “Accident Prevention Tags.”)
3. Unlock, unlatch and open the rear engine door.
Allow the engine to cool before proceeding. Draining
the cooling system while the engine is hot can cause
cracks in the engine block.Disconnect the negative (-)
battery cables (14) from the batteries (10).
4. Slowly turn the radiator cap (15) to the first stop, and
allow any pressure to escape. Remove the radiator
cap.
5. Locate the drain tube (16) and petcock (17) on the
right side of the radiator. Place a funnel (18) under
the drain tube and loosen the drain petcock.
6. Drain the coolant into a suitable container.
7. Remove plastic retainer (19) from around coolant
heater element (20) and 110 volt cord (21). Remove
heating element from engine block.
WARNING:
DO NOT attempt this
procedure when the engine is hot. Wait for the
engine, muffler and tailpipes to cool down
before proceeding. Failure to do so could result
in severe burns.
WARNING:
Hot coolant can cause
severe burns or eye injury. NEVER remove the
radiator cap while the engine is hot. The cooling
system is under pressure. Wear protective
clothing and safety glasses.
MH4690
15
16 17
18
MH4710
19
20
21