Section 7
MAINTENANCE
43
STEP 1- HUB INSTALLATION
MOTOR HUB INSTALLATION FOR MOTOR HUB-
MOUNTING
Coupling is furnished for an interference fit with a
set screw. Heat hub to 275ºF (135ºC) using an
oven, torch, induction heater or an oil bath.
To prevent damage DO NOT heat hubs beyond a
maximum temperature of 400ºF (205ºC).
When an oxy-acetylene or blow torch is used, use
an excess acetylene mixture. Mark hubs near the
center of their length in several places on hub body
with a temperature sensitive crayon, 275ºF (135ºC)
melt temperature. Direct flame towards hub bore
using constant motion to avoid overheating an area.
If an oil bath is used, the oil must have a flash
point of 350ºF (177ºC) or higher. Do not rest hubs
on the bottom of the container. Do not use an open
flame in a combustible atmosphere or near com-
bustible materials.
Heat hubs as instructed above. Mount hubs as
quickly as possible with hub flange face flush with
shaft end. Allow hubs to cool before proceeding.
Insert set screws (if required) and tighten.
COMPRESSOR HUB INSTALLATION
Refer to shrink disc installation sequence before
mounting special compressor hub assembly. Slide
Figure 7-6 Sullicon Control (P/N 011682-003)
Figure 7-5 Pressure Regulator Adjustments
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