2.
low verification of drive shaft alignment.
Attach the drive shaft directly to the engine hub to al-
2. Insert coupling spacers (item 8) into rubber cou-
plings. Position drive shaft assembly to engine and
pump hubs.
3.
Loosen square head screws (item 7) that secure
pump hub to transmission input shaft. Slide pump hub
toward engine, align holes in pump hub with drive shaft
flanges and place cap screws in holes.
3. Secure rubber coupling to engine hub with cap
screws (item 12), lock washers (item 13) and flat wash-
ers (item 3). Tighten cap screws so spacers are tight
against flat washers.
4.
Rotate drive shaft to check alignment of the drive
shaft in all positions. Drive shaft and hub must be
aligned within .125” (3 mm).
4. After attaching drive shaft to pump hub, make sure
that neither rubber coupling is deformed more than
.250”
(6.4 mm) in either direction. If necessary, remove
5.
If alignment adjustment is needed, loosen lock nut
and jam nut that secure transmission anchor (Fig. 27).
squareheadscrews(item7)frompumphub.Reposition
hub on shaft until coupling deflection is less than .250”
(6.4
of square head screws. Install screws into hub and
torque from 80 to 100 in--lb (9.0 to 11.3 N--m).
mm). Apply Loctite #242 (or equivalent) to threads
NOTE: If necessary, loosen the lift arm carrier bracket
before installing shims between frame and axle mount-
ing pad.
5.
Secure rubber coupling to pump hub with conelock
nuts (item 2), flat washers (item 3) and cap screws (item
Tighten cap screws so spacers are tight against flat
6.
Install shims between frame and axle mounting pads to
adjust location of transmission input shaft.
Loosen fasteners that secure front axle to frame.
10).
washers.
A. If the transmission input shaft is high at the drive
coupling, lower input shaft by installing shim(s) be-
tween the rearward axle mounting pads and the
frame (or by removing shim(s) that may exist at for-
ward mounting pads).
10
B. If the transmission input shaft is low at the drive
coupling, raise input shaft by installing shim(s) be-
tween the forward axle mounting pads and theframe
(or by removing shim(s) that exist at rearward axle
mounting pad).
11
1
7.
ers to secure front axle to frame.
Whendriveshaftalignmentiscorrect,tightenfasten-
9
IMPORTANT: Do not overtighten jam nut for trans-
mission anchor as drive shaft alignment will be af-
fected.
8
7
2
8.
Tighten upper jam nut (item 8) until it contacts top of
3
transmission anchor and then tighten lock nut (item 6)
below transmission anchor (Fig. 27).
4
6
5
Installation (Fig. 26)
Figure 27
IMPORTANT: Make sure that drive shaft alignment
is correct before installing drive shaft.
1.
2.
3.
4.
5.
6.
Transmission
7.
8.
9.
Transmission anchor
Jam nut
Shim
Flat washer
Cap screw
Carrier bracket
Lock nut
Front axle
10. Cap screw
1.
Insert coupling spacers (item 5) into rubber coupling
11. Lock nut
holes. Secure rubber couplings to drive shaft with con-
elock nuts (item 2) and cap screws (item 6). Tighten so
spacers are tight against drive shaft.
Groundsmaster 3280--D/3320
Page 5 -- 33
Hydraulic System
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