Service manual

Groundsmaster 3280−D/3320 Page 7 − 9 Chassis
Removal (Fig. 3)
1. Park machine on a level surface, lower cutting deck
(or implement), stop engine, engage parking brake and
remove key from the ignition switch.
2. Block front tires to prevent the machine from moving.
NOTE: To ease reassembly, tag hydraulic hoses to
show their correct position on the steering cylinder.
3. Disconnect the hydraulic hoses from the steering
cylinder. Put caps or plugs on all fittings and hoses to
prevent contamination.
4. On 4 wheel drive machines, remove six (6) socket
head screws and lock washers that secure drive shaft to
bidirectional clutch. Position drive shaft away from bi-
directional clutch.
5. If machine has rear weight(s) attached to frame, re-
move weight(s).
6. Remove two (2) cap screws and lock nuts that se-
cure rear of axle frame to machine frame.
7. Jack up the rear of the machine so that the tires are
just off the ground. Support rear of machine frame with
jack stands or appropriate blocking.
8. Remove four (4) flange head screws (item 6) that se-
cure rear frame and axle assembly to machine frame.
9. Carefully move rear frame and axle assembly from
machine.
Installation (Fig. 3)
1. Carefully position rear frame and axle assembly to
machine frame.
NOTE: The flange head screws (item 6) used to secure
the rear frame and axle assembly to the machine frame
have a patch lock to prevent the screws from loosening.
When installing rear frame and axle to machine, either
replace flange head screws (item 6) or clean screw
threads and apply Loctite #242 (or equivalent) to
threads of screws.
2. Align mounting holes in rear frame and axle assem-
bly. Install and tighten four (4) flange head screws (item
6) to secure rear frame and axle assembly. While tight-
ening screws, make sure that mounting holes on the
rear of the frame align with the axle frame holes.
3. Secure rear of axle frame to machine frame with two
(2) cap screws and lock nuts.
4. If equipped with rear weight(s), attach weight(s) to
rear of machine.
5. On 4 wheel drive machines, position drive shaft to bi-
directional clutch. Secure drive shaft to bidirectional
clutch with six (6) socket head screws and lock washers.
6. Remove all caps and plugs from hydraulic fittings
and hoses. Correctly connect hydraulic hoses to the
steering cylinder.
7. Lower machine to the ground.
8. Check hydraulic fluid level in reservoir (front axle)
and adjust as required (see Traction Unit Operator’s
Manual).
9. Start engine and check for component interference
as steering wheel is turned from lock to lock.
10.Check rear wheel toe−in and adjust if necessary (see
Traction Unit Operator’s Manual).
Chassis