Groundsmaster 4500 --D/4700--DHydraulic S ystem Page 4 -- 124
Installation (Fig. 103)
1. If fittings were removed from fan motor, lubricate and
place new O--rings onto fittings. Install fittings into port
openings. Tighten fittings (see Hydraulic Fitting Installa-
tion in the General Information section of this chapter).
2. Secure fan motor to bracket (Fig. 104):
A. Position fan motor to fan motor bracket and se-
cure with two (2) cap screws (item 8), flat washers
(item 9) and lock nuts (item 10).
B. Thoroughly clean tapered surfaces of fan motor
shaft and fan hub. Place woodruff key (item 7) in slot
in motor shaft.
C. Position fan hub onto motor shaft and secure with
washer (item 5) and hex nut (item 4). Torque nut from
27 to 33 ft--lb (37 to 44 N--m).
D. Connect hydraulic tubes (items 1, 2 and 3) to fan
motor fittings. Use support shim (item 14 in Fig. 103)
to help orientate tubes during assembly.
IMPORTANT: Make sure to not damage the radiator
or other machine components while installing the
fan motor and bracket assembly.
3. Carefully position fan motor and bracket assembly to
radiator and secur e with six (6) cap screws and flange
nuts.
4. Install upper radiator shroud (Fig. 103):
A. Place support shim (item 10) on hydraulic tubes
connected to fan motor.
B. Carefully install upper shroud to machine. Make
sure that upper shroud mounting holes properly align
with hydraulic tubes and fastener locations in radiat-
or and lower shroud.
C. Secure upper r adiator s hroud to lower shroud
and r adiator with removed fasteners. Make sure that
clearance between shroud and cooling fan is at least
0.180” (4.6 mm) at all points.
D. Slide support shim (item 10) onto hydraulic tubes
and secure tubes to upper shroud with bulkhead nuts
(items 21 and 22).
E. Make sure that lubricated O--rings (items 19 and
28) are placed in hydraulic tubes.
F. Remove caps and plugs placed in hydraulic
tubes during removal to prevent contamination. Con-
nect and secure hydraulic tubes (items 16, 17 and
18) (see Hydraulic Hose and Tube Installation in the
General Information section of this chapter).
5. Position fan (item 2) to fan hub and secure with four
(4) cap screws and washers.
6. Install air cleaner hose (item 10) to air cleaner and
plenum on top of radiator.
7. Lower and secure hood.
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