Toro 03781, Руководство по обслуживанию

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Reelmaster 7000--D
DPA Cutting Units
Page 9 -- 43
Disassembly (Fig. 56)
1. Position machine on a clean and level surface, lower
cutting units, stop engine, engage parking brake and re-
move key from the ignition switch.
2. To remove roller brush from brush shaft:
A. Remove the non--driven brush bearing assembly
(item 30) from cutting unit.
B. Slide excluder seal (item 6) from roller brush
shaft.
C. Remove lock nut and J--bolt from both ends of the
brush (Fig. 57).
D. While rotating brush, slide brush from the shaft.
CAUTION
Contact with the reel or other cutting unit parts
can result in personal injury. Use heavy gloves
when handling the cutting reel.
3. To remove roller brush drive belt, rotate the cutting
reel and carefully pry the belt off the drive pulley.
4. Disassemble roller brush components as necessary.
Assembly (Fig. 56)
1. If brush was removed from shaft, slide brush onto
shaft while rotating brush. Secure brush to shaft with two
(2) J--bolts and lock nuts. Make sure that the J--bolts are
installed with the threaded portion on the outside of the
brush (Fig. 57). Torque lock nuts from 20 to 25 in--lb (2.3
to 2.8 N--m) .
2. If seals or bearings were removed from brush bear-
ing housings, install new components noting proper ori-
entation (Fig. 58).
A. Pack bearings with grease before installation.
B. Press bearing into bearing housing so that bear-
ing contacts shoulder in housing bore.
C. Install grease seals so that seal lips are posi-
tioned toward the brush location. Press inner seals
into housing so that seal contacts bore shoulder.
Press outer seals into housing until inner seal is con-
tacted.
1. Roller brush shaft
2. J--bolt
3. Roller brush
4. Lock nut
Figure 57
1
2
3
4
20 to 25 in--lb
(2.3 to 2.8 N--m)
1. Bearing
2. Inner grease seal
3. Outer grease seal
4. Housing (non--driven)
5. Housing (driven)
Figure 58
2
2
1
1
4
5
3 3
1
2
3
4
5
6
9
10
7
8
9
1. Bearing housing
2. Drive shaft
3. Ball bearing
4. Grease seal
5. Retaining ring
6. Snap ring
7. O--ring
8. Side plate
9. Socket head screw
10. Grommet
Figure 59
DP
A
C
utting
Units