MacDon 9000 - Page 120

TROUBLE SHOOTING
PROBLEM
CAUSE
REMEDY
REF .
Air conditioning not
Oogged expansion Bleed system and re-
*
producing sufficient
valve. place valve. Then, evac-
cooling (continued).
uate and charge
system.
Clogged receiver-drier. Bleed system and re-
*
place receiver-drier.
Then evacuate and
charge system.
Excessive moisture
in Bleed system and re-
*
system.
place receiver-drier.
Then evacuate and
charge system.
Air in system. Bleed, evacuate and
*
charge system.
Thermostat defective
or Replace thermostat.
*
improperly adjusted.
Blower motor sluggish
Remove blower
motor
*
in operation. for service or replace-
ment.
Air conditioning system
Defective winding
or
Repair or replace as
*
too noisy.
improper connection
In necessary.
compressor clutch coil
or relay.
Loose
or excessively
Tighten
or replace as
53,65
worn drive belt. required.
Noisy clutch.
Remove clutch
for serv-
*
ice or replacement as
required.
Noisy compressor. Check mountings and
*
repair. Remove com-
presser
for service or
replacement.
Compressor oil level
Add 525 viscosity refrig-
*
low . erant oil.
Blower fan noisy
due to
Remove blower motor
*
excessive wear. for service or replace-
ment as necessary.
Excessive charge In Discharge excess refrig-
*
system.
erant until pressure
drops within specs.
Low charge In system.
Check system
for leaks,
*
charge system.
* See your Windrower dealer.
116