Toro 03781, Руководство по обслуживанию

Страница: 345 / 468

Reelmaster 7000−D Page 8 − 11 Chassis
Removal (Fig. 8)
1. Park machine on a level surface, lower cutting units,
stop engine, engage parking brake and remove key
from the ignition switch.
2. Remove cutting unit from lift arm (see Cutting Unit
Removal in Chapter 9 − DPA Cutting Units in this manu-
al).
3. Remove one (1) retaining ring and washer from the
cylinder pin (item 17). Remove cylinder pin from the lift
arm and cylinder rod clevis which will free lift cylinder
from lift arm.
CAUTION
Be careful when removing tension from the tor-
sion spring on the rear lift arms. The spring is un-
der heavy load and may cause personal injury.
4. Remove tension from torsion spring on rear of lift arm
tube (Fig. 9):
A. Insert nut driver or small piece of pipe onto the
end of the torsion spring that is on the rear of the lift
arm.
B. Push down and rearward on the spring end to un-
hook the spring from the stop on the lift arm.
5. Loosen and remove lock nut (item 13) from lift arm
pivot pin.
6. Support lift arm and pull lift arm pivot pin from lift arm
and frame. Locate and remove thrust washer (item 16)
from rear of lift arm during pivot pin removal.
7. Remove lift arm and torsion spring from machine.
8. Disassemble lift arm as needed.
9. 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. 8)
1. Assemble lift arm.
2. Place torsion spring over rear of lift arm tube. Posi-
tion long leg of spring forward and pointing out from top
of spring.
3. Position lift arm to frame (Fig. 8). Fit thrust washer
(item 16) between rear of lift arm and frame. Slide pivot
pin into frame and lift arm. Align roll pin in pivot pin with
slot in frame flange.
4. Install and tighten lock nut (item 13) to secure lift arm
pivot pin.
5. Position lift cylinder rod clevis to lift arm
6. Make sure that one (1) retaining ring and washer are
installed on cylinder pin (item 17). Insert cylinder pin
through the lift arm and lift cylinder clevis. Secure pin
with second washer and retaining ring. Make sure that
retaining ring is fully seated in pin.
CAUTION
Be careful when applying tension to the torsion
spring on the rear lift arms. The spring is under
heavy load and may cause personal injury.
7. Apply tension to torsion spring (Fig. 9):
A. Insert nut driver or small piece of pipe onto the
long leg of the torsion spring on the rear of the lift arm.
B. Push down and forward on the spring end to hook
the spring to the stop on the lift arm.
8. Position and install cutting unit to lift arm (see Cutting
Unit Installation in Chapter 9 − DPA Cutting Units in this
manual).
9. Lubricate lift arm and lift cylinder grease fittings after
assembly is complete.
10.After assembly, raise and lower the cutting unit to
verify that hydraulic hoses and fittings do not contact
anything.
1. Torsion spring 2. Spring end
Figure 9
2
1
Chassis