Separating Cutting Units From Traction Unit; Checking And Correcting Cutting Blade Mismatch - Toro 30581 Groundsmaster 580-D Operator's Manual

2. Remove deck covers. Loosen flange locknuts on idler
pulleys and slide pulleys away from belts.
3. Remove flange head screws securing gearbox plate to
deck. To separate plate and drive motor assembly from
deck, rotate plate end toward traction unit (Fig. 64). Tip
plate, motor and pulley assembly on its side and remove
from deck. Be careful not to bend, twist, kink or
damage flexible hydraulic lines.
4. Remove belt(s). Position new belt(s) in pulleys and
assemble gear box and plate assembly to deck.
5. Adjust belt tension; refer to Inspecting and Adjusting
the Cutting Unit Belt Tension, page 49.
Separating the Cutting Units
from the Traction Unit
Front Cutting Unit
1. Position machine on level surface, lower cutting unit to
shop floor, engage parking brake, shut engine off and
remove key from ignition switch.
2. Remove deck covers.
3. Loosen jam nut and relieve tension on springs with
tensioner bolt (Fig. 63).
4. Loosen (4) capscrews securing slide plate to motor
mount (Fig. 65).
5. Remove (4) capscrews securing motor mount to deck
(Fig. 65).
Note: Do not loosen adjusting screws.
6. Remove motor mount from deck. Be careful not to
bend, twist, kink or damage flexible hydraulic lines.
7. Remove hex head screws and flange locknuts securing
each lift arm to the castor arm and separate from the
arm.
8. Roll the cutting unit away from the traction unit.
9. To re–install cutting unit, assemble in reverse order.
Outboard Cutting Units
1. Position machine on level surface, lower cutting unit to
shop floor, engage parking brake, shut engine off and
remove key from ignition switch.
2. Remove deck covers and relieve belt tension on all belts
(Fig. 64).
3. Remove flange head screws securing gearbox plate to
deck. To separate plate and drive motor assembly from
deck, rotate plate end toward traction unit (Fig. 68). Tip
plate, motor and pulley assembly on its side and remove
from deck. Be careful not to bend, twist, kink or
damage flexible hydraulic lines.
1. Deck cover
2. Gearbox plate
3. Deck pivot shaft
4. Remove locknut securing deck pivot shaft into deck
clevis and lift bar (Fig. 68).
5. Move the cutting unit away from the machine.
6. To install cutting unit, assemble in reverse order.
Checking and Correcting
Cutting Blade Mismatch
If there is mismatch between the blades, the grass will
appear streaked when it is cut. This can be corrected by
ensuring all blades are straight and cutting on the same
plane.
1. Adjust cutting unit to highest height–of–cut. Position
castor wheel axles in lower castor fork holes (Fig. 69
and 70). If checking front cutting unit, reposition two
rear castor's clevis pins to highest height–of–cut setting
(Fig. 69). On the front castors, move all castor spacers
to the underside of the castor arms (Fig. 69). To check
51
Figure 68
4. Deck clevis
5. Lift bar