Gardner Denver APEX15-18A, Руководство по эксплуатации и обслуживанию

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The motor jacking hardware must be re-configured, the disposable spacer
removed, and belts engaged and the belt sheaves alignment checked prior to
compressor operation. Failure to do so will prevent compressor operation and/or
component damage.
1. Unlatch and remove the door panel opposite to the main cooling fan panel to gain access to the
v-belt system
– see Figure 1-3 see page 10, for details.
2. Locate the motor jacking plate (see Figure 8-
1
page 50 for details). Unscrew and remove the
jacking bolt, but retain for further use. Do not remove or disturb the motor lift plate or fastening
bolt/nut set.
3. Insert the jacking screw in the threaded hole of lift plate and turn clockwise raise the motor lift
plate away from the disposable space slightly. Discard disposable spacer.
4. Re-engage the belts unto the grooves of the motor sheave. Make sure that each belt is engaged
in its respective groove of each sheave.
5. Turn the jacking screw counter-clockwise to lower motor and transfer its weight unto the belt set.
Make sure that the belts remain aligned into each corresponding groove. Keep turning jacking
screw until it clears base frame surface by at least one inch and jam with provided nut.
6. Check alignment of the sheave set.
SHEAVE SET ALIGNMENT
1. Use a straight edge for alignment checks.
2. Check parallel alignment. It should be simple to control by moving one of the sheave/bushing
pairs along the shaft to match the other.
3. Check angular alignment. The misalignment A = ArcTan * ((X2-X1)/D), where calculated A in
degrees and measured X1, X2 and D are in inches or mm.
4. The allowable total misalignment is 0.5 degrees for best belt longevity. As reference, 0.5 degrees
represents a gap (e.g., X1-X2) of 0.05" (1.33mm) over a 6" diameter sheave.
Figure 8- 3 - Measuring Angular Misalignment
Sheave misalignment will shorten the operational live of the belts.