Toro Groundsmaster 3280-D Service Manual page 81

Removal (Fig. 28)
1. Park the machine on a level surface, engage parking
brake, lower cutting deck (or implement) and stop en-
gine. Remove key from the ignition switch.
2. To prevent contamination of the hydraulic system,
thoroughly clean transmission and front axle.
CAUTION
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil.
3. Label hydraulic hoses to assist in assembly. Discon-
nect all hydraulic hoses from the transmission assem-
bly. Allow hoses to drain into a suitable container. Plug
or cap openings of transmission and hoses to prevent
contamination.
4. On 4 wheel drive machines, disconnect 4WD drive-
shaft from transmission (see Rear Axle Drive Shaft (4
Wheel Drive) Removal in the Service and Repairs sec-
tion of Chapter 8 -- Drive Axles). Position drive shaft
away from transmission.
5. Remove transmission drive shaft (see Transmission
Drive Shaft Removal in this section).
6. Remove cotter pin (item 19) and flat washer (item 20)
that retain traction rod end (item 50) to pump lever. Re-
move traction rod from lever.
7. Label location of wires attached to neutral switch.
Disconnect wires from switch and position away from
transmission.
8. Remove lock nut (item 11) that secures transmission
to transmission anchor (item 12).
CAUTION
Support transmission when removing it from the
front axle to prevent it from falling and causing
personal injury.
9. Loosen and remove four (4) cap screws (items 1 and
2) that secure transmission to front axle. Locate and re-
trieve washers (items 3 and 4) and spacers (items 5 and
6). Note location of washers and spacers for assembly
purposes.
10.Carefully pull the transmission from the front axle dif-
ferential.
Groundsmaster 3280--D/3320
11. Remove and discard gasket (item 9). Clean gasket
surfaces of transmission and front axle.
12.If necessary, remove hydraulic fittings from trans-
mission. Note orientation of fittings for assembly pur-
poses.
13.Remove and discard all o--rings from removed hy-
draulic hoses and fittings.
IMPORTANT: Pump lever is secured to transmis-
sion shaft with Loctite #680 Retaining Compound in
addition to cap screws and lock nuts. Use puller to
remove pump lever from transmission. To prevent
transmission damage, do not strike lever with ham-
mer during removal.
14.If pump lever (item 18) removal is necessary, remove
two (2) cap screws and lock nuts. Use puller to remove
lever from transmission shaft.
Installation (Fig. 28)
1. Coat new hydraulic fitting o--rings lightly with clean
hydraulic oil. Install fittings with new o--rings to the trans-
mission. Orientate the fittings as noted during disas-
sembly.
2. If pump lever (item 18) was removed, clean pump
shaft thoroughly and apply Loctite #680 Retaining Com-
pound (or equivalent) to pump shaft. Slide pump lever
onto shaft and secure with two (2) cap screws and lock
nuts.
3. Apply non--hardening gasket sealant to both sides of
gasket (item 9). Position gasket to front axle gasket sur-
face.
4. Carefully position transmission to front axle taking
care not to move or damage gasket. Make sure that
transmission and axle gears mesh properly.
IMPORTANT: During assembly, make sure that up-
per left screw (item 1) extends through hole in trans-
mission anchor (item 12).
5. Apply Loctite #242 (or equivalent) to threads of cap
screws (items 1 and 2). Secure transmission to front
axle with cap screws, washers (items 3 and 4) and
spacers (items 5 and 6) using locations noted during dis-
assembly. Tighten cap screws in a crossing pattern. Af-
ter tightening, make sure that mounting spacers (item 6)
do not rotate.
6. Secure transmission to anchor (item 12) with lock nut
(item 11). Retain upper left cap screw (item 1) while
tightening lock nut.
7. Connect machine harness wires to neutral switch.
Page 5 - - 35 Hydraulic System