Toro Reelmaster 3550-D Service Manual page 288

C. Apply a light coating of grease to inner diameter
of the seals in roller brush bearing housings.
D. Inspect O--ring on non--driven end of roller brush
shaft and replace if necessary.
E. Apply antiseize lubricant to splines of roller brush
shaft before sliding hardened washer(s) and driven
pulley onto shaft. For rear roller brush assemblies at-
tached to cutting units without groomer or to cutting
units with a belt driven groomer, tighten flange nut
that secures driven pulley to roller brush shaft from
27 to 33 ft- -lb (36 to 45 N- -m).
For rear roller brush assemblies attached to cutting
units with gear driven groomer, tighten jam nut that
secures driven pulley to roller brush shaft from 15 to
20 ft- -lb (20 to 27 N- -m).
F. Position excluder seals on brush shaft so that
seals just touch bearing housings.
CAUTION
Contact with the reel or other cutting unit parts
can result in personal injury. Use heavy gloves
when handling the cutting reel.
G. To install drive belt, loop belt around driven pulley
and over the top of the idler pulley. While rotating the
cutting reel, carefully guide belt onto drive pulley
(Fig. 57). After belt installation, make sure that belt
and pulley grooves are aligned and that belt is cen-
tered in idler pulley.
4. Check alignment of pulleys with a straight edge
placed along the outer face of the driven pulley (Fig. 58).
The outer faces of the driven and drive pulleys (not the
idler pulley) should be in line within 0.030" (0.76 mm).
If necessary to align pulleys, remove driven pulley from
brush shaft and add or remove hardened washer(s) until
drive and driven pulleys are aligned within 0.030" (0.76
mm).
5. Check that roller brush is parallel to rear roller with
0.060" (1.5 mm) clearance to light contact with roller
(Fig. 59). If contact is incorrect, brush operation will be
adversely affected.
6. Lubricate grease fittings on brush bearing housings
until grease purges past inboard seals. Wipe excess
grease from seals and fittings.
DPA Cutting Units
1
1. Drive pulley
2. Driven pulley
1
3
TYPICAL ASSEMBLY SHOWN
1. Drive pulley
2. Driven pulley
2
1. Rear roller brush
2. Rear roller
Page 7 - - 38
4
TYPICAL ASSEMBLY SHOWN
Figure 57
3. Idler pulley
4. Drive belt
2
Figure 58
3. Straight edge
1
Figure 59
3. Light contact
Reelmaster 3550--D/3555--D/3575--D
2
3
CHECK
ALIGNMENT
3