Page 29 - Goodyear2011PTMaintenanceManual

Synchronous Belts
INSTALLATION GUIDE
29
Using a torque wrench, tighten the capscrews to the torque
values listed below. If there is not a gap of 1/8" to 1/4" between
the bushing fange and the sprocket hub then disassemble the
parts and determine the reason for the faulty assembly.
The sprocket will draw onto the bushing during tightening.
Always re-check alignment after tightening the capscrews. If
alignment has changed, loosen the capscrews and move
sprocket/bushing assembly on shaft to re-align. Tighten
the setscrews over the keyway to the torque values listed in the
table.
If the sprockets are straight bore, use the above alignment
procedure and then tighten the setscrews to the correct torque
for the setscrew size as listed in the Torque Specifcations table
below (Table 16).
QD® bushings can be installed with the capscrews on either
side, excluding QT, M, and N sizes. Drives with opposing shafts
require one of the sprockets be mounted with the capscrews on
the fange side and one with the capscrews on the hub side.
Split Taper Bushing
If the sprockets are made for split taper bushings, follow these
installation and removal instructions.
HOW TO INSTALL SPLIT TAPER BUSHING SPROCKETS
Put the bushing loosely in the sprocket and start the capscrews.
Place the assembly on the shaft. Align both edges of the sprocket
with the edges of its mating sprocket (i.e. the sprocket on the
driven shaft).
Tighten the capscrews according to the instructions furnished with
the bushings.
HOW TO REMOVE SPLIT TAPER BUSHING SPROCKETS
Remove all capscrews.
Put two of the capscrews in the tapped holes in the fange of the
bushing.
Turn the bolts alternately and evenly until the sprocket has loosened.
Remove the sprocket/bushing assembly from the shaft.
4
5
HOW TO REMOVE A SPROCKET WITH A QD® HUB
Place two of the pull-up bolts in the tapped holes in the sprocket.
Turn the bolts alternately and evenly. They will push against the
bushing fange and act as jackscrews to break the grip between
the bushing and the hub.
6
Table 16 - TORQUE SPECIFICATIONS