How to Remove & Install Thermostat for Liebherr Diesel Engine D834

This instruction show you guide on how to remove and install thermostat for Liebherr diesel engine D834 A7.

 

Preparations:

2020 2018 Liebherr Lidos Offline EPC+Service Manual Full Free Download

 

Procedures:

Remove thermostat

Remove thermostat 2 with O-ring 3 from

thermostat housing1

Clean sealing surfaces

Remove thermostat housing Mark installation position,fixing screws1

-Unscrew fixing screws 1

Remove thermostat housing 2 with seal 3 from timing case

-Clean sealing surfaces

Disassemble thermostat housing

Remove adapter 5 with banjo union1 and sealing rings 41

Remove plug-in pipe 3 from thermostat housing 2

Assemble thermostat housing

Screw in and tighten adapter 5 with new sealing rings 4 and banjo union1

-Coat new plug-in pipe 3I thinly with coolant frost protection

Install plug-in pipe Bl in thermostat housing)

 

Install thermostat and thermostat housing

Install thermostat housing

Position thermostat housing 2 with new sealing ring 3 on timing case

-Screw in fixing screws 1 after identification

Tighten fixing screws 1

 

Install thermostat

coat new O-Ring 3 thinly with coolant frost protection

Install thermostat 2 with O-Ring 3 in thermostat housing 1