Wulftec / M.J. Maillis Group
Page 30 of 36
Version 1.7.1 /November 2014
Maintenance
Carriage Lift Chain Tension Adjustments
Position the carriage to the center of the travel limits. Hold
the locknut while tightening the tension-adjusting nut on
the "upper" section. (The lower section is for aligning the v-
groove/carriage mounting plates). Do not over tighten and
assure that both chains are equal in tension. (0.015" of
play per foot) Once set, hold the adjustment nut and
tighten the locknut.
Pre-Stretch Belts Adjustment
The pre-stretch belts should be checked for proper tension every 2000 hours of operation.
Recommended tension is 1/64” deflection per inch of belt span with a force of approximately 25 lbs.
The motor drive belt is adjusted by loosening the four (4) motor mounting bolts and sliding the motor
in the mounting slots. The pre-stretch belt tension is adjusted with the tension adjustment arm. This
arm can be rotated and moved within the mounting slot to obtain correct tension.
Pre-Stretch Chain Adjustment
The pre-stretch chains should be checked to ensure the proper tension (approx. every 2000 hours of
operation). If the chains are found to have improper tension they may be adjusted. (0.015” of play
per foot of chain is recommended) The motor chain may be adjusted by loosening the four (4) bolts
from under the top plate of the carriage and moving the motor using the slots provided. The pre-
stretch chain tension may be adjusted by using the cam & sprocket. This cam has an eccentric hole
and may be turned for chain adjustment.
Photoeyes
Every 2000 hours of operation the photoeye and reflectors should be cleaned to ensure that no false
readings would be taken during operation of machinery.