Groundsmaster 4110-- D Operator CabPage 9 -- 5
5. Disconnect compressor electrical connector from
machine wire harness.
6. Read the General Precautions for Removing and
Installing Air Conditioning System Components at the
beginning of the Service and Repairs section of this
chapter.
CAUTION
The air conditioning system is under high pres-
sure.Do not loosenany system fitting or compo-
nent until after the system has been completely
discharged by a certified A/C service technician.
7. Have refrigerant evacuated from air conditioning
system by a certified A/C service technician.
8. Label and remove hoses from compressor. Immedi-
atelycaphosesandfittingstopreventmoistureandcon-
taminants from entering the system.
9. Support compressor to prevent it from shifting or fal-
ling.
NOTE: There may be shims mounted between com-
pressor and compressor arm. When removing com-
pressor, note shim location and quantity for assembly
purposes.
10.Remove fasteners and spacers that secure com-
pressor to compressor mount and compressor arm.
IMPORTANT: Toprevent compressoroilfrom filling
the compressor cylinders, keep compressor in t he
same orientation as the installed position.
11.Carefully remove compressor from engine and ma-
chine.
NOTE: Thereplacementofthedrier--receiverisrecom-
mendedwheneverA/Ccompressorisremovedfromthe
system (see Heater and Evaporator Assembly in this
section).
NOTE: The air conditioning compressor used on the
Groundsmaster 4110--D is a Sanden model SD5H09.
For air conditioning compressor repair procedures, see
the Sanden SD Compressor Service Guide at the end
of this chapter.
Installation (Fig. 1)
1. Positioncompressortocompressormountandcom-
pressor arm.
2. The clearance between the compressor mounting
flangesandmountingbracketsmustbelessthan0.004”
(0.10 mm). If necessary, install shims between com-
pressor flanges and brackets to adjust clearance. See
Parts Catalog for shim kit.
3. Secure compressor to compressor mount and com-
pressor arm with removed fasteners and spacers. Do
not fully tighten fasteners.
IMPORTANT: After the compressor has been
installed, make sure to rotate the compressor drive
shaft several times to properly distribute oil in the
compressor. Compressor damage due to oil slug-
ging can occur if this procedure is not performed.
4. Manually rotate the compressor drive shaft at least
ten(10)revolutionstomakesurethatnocompressoroil
is in the compressor cylinders.
5. Place drive belt onto c ompressor pulley.
6. Tensioncompressordrivebeltw ithidlerpulley.Make
sure to tighten lock nut to secure belt adjustment.
7. RemovecapsthatwereplacedonA/Chosesandfit-
tings during the removal process. Using labels placed
during removal, properly secure hoses to compressor.
8. Connect compressor electrical c onnector to ma-
chine wire harness.
9. Have a certified air conditioning service technician
evacuate the air conditioning system completely, prop-
erly recharge the system with R134a refrigerant and
then leak test the system. A/C system capacity is
approximately1pound 6 ounces (624 gm) of R134a re-
frigerant.
10.Lower and secure hood.
1. A/C compressor
2. Alternator
3. Compressor arm
Figure 2
1
2
3
Operator
Cab
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