Toro Groundsmaster 4500-D Series Service Manual page 422

Removal (Figure 290)
Installation (Figure
Chassis: Service and Repairs
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).
#6 Deck
(GM4700)
g308386
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
8. Clean lift arm and pivot pin. Inspect lift arm bushings and pivot pin for
damage or wear. Replace worn or damaged components.
290)
1. Assemble lift arm using
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 pivot 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 Cutting 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.
#4 Deck #1 Deck
#2 #3
Deck Deck
Figure 291
CUTTING DECK LOCATIONS
Figure 290
Figure 290 as a guide.
Page 8–18
#5 Deck
#7 Deck
(GM4700)
as a guide.
Groundsmaster ® 4500-D/4700-D
19245SL Rev A