Neary 555 SRI, Service Manual

Page: 11 / 74

11
- ORIGINAL INSTRUCTIONS -
MAINTENANCE
GRINDING MOTOR BELT REPLACEMENT/
ALIGNMENT
To replace or inspect the grinding motor belt,
remove the right side cover panel. To remove the
belt, pull down on the tensioner pulley.
For the belt to function properly the grinding
shaft pulley and the grinding motor pulley must
be in line with the tensioner pulley. To adjust the
pulley position, loosen the setscrews on the pulley.
Locate the belt in the center of the idler pulley.
Measure from the arm to the edge of the belt at
the idler pulley. Adjust the two other pulleys until
the same measurement is achieved and tighten the
pulley setscrews.
Reinstall the right side cover panel, then run
the grind motor to assure that the belt is not
misaligned. The belt will walk off the pulley if the
system is not aligned properly.
TRAVERSE BELT REPLACEMENT
To replace the traverse belt, remove the left side
cover panel, then loosen the nuts on the left side
pulley that are used to tension the belt. Remove
the right side cover panel. Loosen the screws
holding the traverse motor and tilt the bottom of
the motor out, releasing any remaining tension on
the belt. On the left side remove the nut from the
bottom belt tensioning screw. This will allow the
belt to be removed.
Place a new belt on the left pulley, making sure it
is seated properly in the cogged teeth, and replace
the locknut. Feed the new belt through the slot on
the right arm and place on motor pulley. Use the
motor as a lever to apply tension to the new belt.
Tighten motor screws and adjust the tension in
the belt as specified in the BELT TENSION section.
Adjust the height of the motor pulley if necessary
so the belt is located in the center of the traverse
belt clamp.
Reinstall the left side and right side cover panels,
then test the traverse motor.
FIG. 7
FIG. 6