Toro Groundsmaster 4500-D Service Manual page 297

Removal (Fig. 15)
1. Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
2. Remove cutting deck from lift arm (see Cutting Deck
Operator's Manual).
3. Remove pin (item 27) that secures lift links (item 10)
to lift arm.
4. Loosen and remove lock nut (item 19) from pivot pin
(item 28).
5. Support lift arm and pull lift arm pivot pin from lift arm
and support arm. Locate and remove thrust washer
(item 20) from rear of lift arm during pivot pin removal.
6. Remove lift arm from machine.
7. Disassemble lift arm as needed using Figure 15 as
a guide.
8. Clean lift arm and pivot pin. Inspect lift arm bushings
and pivot pin for damage or wear. Replace worn or dam-
aged components.
Installation (Fig. 15)
1. Assemble lift arm using Figure 15 as a guide.
2. Position lift arm to support arm. Fit thrust washer
(item 20) between rear of lift arm and support arm. Slide
pivot pin into support arm and lift arm. Align roll pin in piv-
ot pin with slot in support arm flange.
3. Install and tighten lock nut (item 19) to secure lift arm
pivot pin.
4. Secure lift links (item 10) to lift arm with pin (item 27).
Make sure that thrust washer (item 15) and retaining
ring (item 1) are on both ends of pin.
NOTE: Install compression spring (item 23) and thrust
washer (item 24) on carrier pivot pin before installing
cutting deck on pivot pin.
5. Position and install cutting deck to lift arm (see Cut-
ting Deck Operator's Manual).
6. Lubricate lift arm grease fittings after assembly is
complete.
7. After assembly, raise and lower the cutting deck to
verify that hydraulic hoses and fittings do not contact
anything.
Groundsmaster 4500--D/4700--D
#4 Deck
#6 Deck
(GM4700)
CUTTING DECK LOCATIONS
Page 7 - - 15
#1 Deck #5 Deck
#2 #3
#7 Deck
Deck Deck
(GM4700)
Figure 16
Chassis