DR 30.00 COMMERCIAL RAPID-FEED CHIPPER Safety & Operating Instructions Manual page 37

5. Remove the Locknut and then remove the Belt Co
Bracket for better access to the Sheave (Figure 27).
6. Remove the Belt from the Clutch and Sheave (Figure
28).
Installing and Adjusting the Belt
NOTE: The Belt Tensioner Adjusting Nut may need to be
loosened up more per the previous instructions
"Removing the Belt" to enable you to install a new
Belt.
1. Install the Belt onto the Sheave and Clutch.
2. Tighten the Adjusting Nut on the Belt Tensioner using
a 1/2" Wrench to take up the s
too tight at this point (Figure 26).
3. Check the alignment of the Clutch with the Sheave by
placing a Straightedge across the Sheave side face
(closest to the Chipper Assembly) and resting the
other end on top of the Clutch Pulley (Figure 28
4. Check the gap from the Straightedge to the Bel
the Sheave and near the Clutch. If t
then no adjustment is needed. If th
same then adjustment is necessary, corre
alignment as follows:
a) Loosen the Sheave Bushing Bolt with a 7/16
Wrench (Figure 29).
b) Remove the three Bushing Retaining Bolts using a
7/16" Wrench.
c) Reinstall the three Bolts in the unused Threaded
Holes adjacent to the three Bushing Retaining Bolt
holes.
d) Slowly tighten t he Bolts eve
1/2 turn) starting with the Bolt farthest from
Bushing Saw Slot (this acts as a Hub puller)
Bushing releases from the Flywheel Sha
e) When the Sheave is loose, remove the three
and reinsert them into the original Retaining
f) Us ing a straightedge, align the Clutch and Sheave by
Shaft. Do not make the adjustment by attempting
NOTE: Prio r to retighteni
straightedge to allow for compression of the Bushing during the tightening process.
g) Slowly tighten the Bushing Retaining Bolts evenly and alternately (1/4 to 1/2 turn) starting with the
Bolt farthest from the Bushing Saw Slot.
h) Recheck the alignment after tightening the Bolts, and then retighten the Sheave Bushing Bolt.
NOTE: Make sure that the Belt or Sheave is not hitting the Hopper.
lack in the Belt, but not
he gap is the same
e gap is not the
nly and alternate
ng the Bushing Retaining Bolts, move the Sheave out approximately 1/8" from the
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ver
Figure 27
Straightedge
On side face
of Sheave
).
t ne r a
Straightedge
On Top of
Clutch Pulley
ct t e h
Figure 28
"
Sheave
Bushing
Bushing
ly (1/4 to
Saw Slot
the
until the
Figure 29
ft.
Bolts
Bolt holes.
moving the Sheave in or out on the Flywheel
to move the Clutch on the Engine Shaft.
Gap
Gap
Sheave
Flywheel Shaft
Bushing
Retaining
Bolts
Locknut
Belt
Guard
Bracket
Sheave
Belt
Clutch
Sheave
Bushing
Bolt
33