Drive Bearing Assembly Installation; Sheave Installation - Graco GrindLazer 270 Repair Manual

Drive Bearing Assembly Replacement
4. Remove all four nuts holding drive side bearing onto
cage.
5. Slide shaft assembly out of holes.
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Drive Bearing Assembly
Installation
1. Insert new drive bearing assembly into cage.
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NOTE: Be sure to use the shorter bolts for the drive
side bearing.
2. Tighten nuts and lock washers to hold bearing
assembly in place.
16
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3. Make sure drive shaft key is assembled as shown
below.

Sheave Installation

1. Insert bushing onto drive shaft. Make sure key is in
place.
2. Apply thread sealant to set screw and install set
screw into bushing.
3. Apply thread sealant to bolt and place lock washer
and spacer onto bolt as shown. Thread it into the
end of the shaft and tighten. Make sure lock washer
is fully compressed.
4. Install sheave onto bushing and evenly tighten three
bolts and lock washers to pull the sheave onto the
building.
5. Replace belt and belt guard (see page 9).
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3A0102D