BobCat 753 – BASIC TROUBLESHOOTING – Engine Coolant By-Passing The Heater Valve

Raise the lift arms and install an approved lift arm support device. (See Installing Lift Arm Support Device on Page 10-20-1.)

Turn the fan switch (Item 1) [Figure 80-30-26] to the High Speed position, with the loader ignition switch OFF.
Raise the operator cab. (See Raising The Operator Cab on Page 10-30-1.)

Connect the remote start tool to the loader. (See REMOTE START on Page 10-60-1.)

Start the loader and run at high idle, for ten minutes.

Check the heater hose (Item 1) [Figure 80-30-27] for temperature.

If the hose is hot, the heater valve is leaking by, and needs to be replaced.



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