Page 28 - Goodyear2011PTMaintenanceManual

Synchronous Belts
INSTALLATION GUIDE
28
INSPECT SPROCKETS
The following sections outline installation procedures that
will ensure maximum life and performance for your Goodyear
Engineered Products synchronous belts such as Hawk Pd,®
Blackhawk Pd,® Falcon HTC,® and Eagle NRG™ belts.
Worn teeth will cause belt wear and/or damage. Nicks or gouges
can cut the belt. Dirt on the teeth and in the grooves can abrade the
belt and oil can attack belt materials.
Use a stiff brush to remove rust and dirt. Use a soft cloth to wipe off
oil and grease.
Make sure the components are ready for installation. Clean all
shafts, removing any nicks or burrs. Clean all mating surfaces of the
sprocket, bushing, and shaft. Do not use lubrication or anti-seize
solution on any of these surfaces.
Make sure the shafts are true and parallel by accurately measuring
the distance between the shafts at three points along the shaft.
The distance between the shafts should be the same at all three
points as shown.
Also, make sure the shafts are rigidly mounted. Shafts should not
defect when the belt is tensioned.
1 2 INSTALL HARDWARE
Correct sprocket selection and installation is important. Before
performing any installation, follow correct lockout procedures to
prevent any accidents.
IMPORTANT: Disconnect power supply to machine before
doing ANY work.
QD® Bushing
If the sheaves are made with a QD® hub, follow these installation
and removal instructions.
HOW TO INSTALL A SPROCKET WITH A QD ® HUB
For conventional mounting, insert bushing into the sprocket,
aligning the tapped holes in the bushing fange with the thru
holes in the sprocket hub.
Insert capscrews through the thru holes and into the tapped
holes.
Insert the key into the keyseat of the shaft.
With capscrews to the outside, place the sprocket and bushing
assembly on the shaft, positioning the assembly with the
bushing fange towards the shaft bearings. Reverse mounting
the QD® bushing can be advantageous for some applications.
Mount the other sprocket in a similar manner.
Check that the teeth of both sprockets are pointing in the same
direction when installing Eagle NRG™ sprockets.
Snug the capscrews so that the sprocket /bushing assembly can
still move on the shaft.
Align the sprockets using a straight edge. Check for contact in
four places as shown. Do not use bearings or drive shafts as
reference points for sprocket alignment.
3
*QD® is a registered Trademark of Emerson Power Transmission Manufacturing, L.P.
WARNING
Disconnect power supply to the machine before removing
or installing sheaves or belts.
WARNING
Do not reinstall damaged or worn sheaves on equipment.