CAB HEATER/AIR CONDITIONING UNIT REPLACEMENT - CONTINUED
REMOVAL - CONTINUED
Underneath instrument panel, disconnect connectors from A/C control switch, disconnect cable from heater temperature
Disconnect two heater hoses from side of cab heater and A/C unit (WP 0190 00).
Water and dirt can damage refrigerant system. Refrigerant lines should be capped after disconnection
Loosen two fitting nuts (5) and disconnect two A/C hoses (6 and 7) from expansion valve (4).
Loosen four hose clamps and disconnect four flexible ducts from top of cab heater and A/C unit (8).
Remove screw and disconnect white ground wire from top corner of cab heater and A/C unit (8).