MAINTENANCE AND SERVICING
Figure 5.49: HVAC System (MD #202957)
A - Expans
ion Valve
B - Low Pressure Switch C - Electrical Connector
D-Thermo
stat
E - Heater Valve
F - Evaporator Core G - Blower Motor
H - Blower Fans
J-HighPressureSwitch
K - Receiver Dryer
L - Compressor
Servicing the Air Conditioning Compressor
Refer to Replacing A ir Conditioner (A/C) Compressor Belt, page 367 for belt replacement procedure.
See your MacDon Dealer for all other servicing procedures.
5.5.7 E ngine
CAUTION
• NEVER operate engine in a closed building. Proper ventilation is required to avoid exhaust gas hazards.
• Keep the engine clean. Straw and chaff on a hot engine are a fire hazard.
• NEVER use gasoline, naphtha, or any other volatile material for cleaning purposes. These materials are
toxic and/or flammable.
General Engine Inspection
Engine inspection should be performed by your MacDon Dealer.
Refer to your engine manual for further information. (Owner ’s Manual QSB 4.5 and QSB 6.7 Engine
Cummins #4021531 are supplied with your machine).
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