Owner’s Manual
E2010 THYSSENKRUPP ELEVATOR Printed in USA February, 2010
Door Operator-7
Maintenance
1. Check that the motor mounting bolts are tight.
2. Remove the brush covers (where applicable), blow out
the brush holders, check the brushes for wear, and rein-
stall the covers.
3. Inspect the operator belts for cracks or glazing, even wear
(on both sides), that the belts are not bottomed out in the
grooves and for proper tension (belt slippage).
NOTE: The following guidelines apply when testing, adjust-
ing, or replacing belts:
S Ideal tension is the lowest tension at which the belt will
not slip at peak load.
S All belts in the set should be tested for equal tension
by pushing each belt down at the midpoint between
the pulleys. (Typical deflection is
3
/
8
I with 10 lbf ap-
plied.)
S If belts require tensioning, sheave alignment should
be checked with a straight edge.
S If belts are replaced on multi–groove sheaves, they
should be changed as a matched set.
4. Check that all linkage bolts are tight.
5. Remove the door operator cover and rotate the door oper-
ator by hand and check the operation of DOL and DCL
sensors.
6. Check the operation of the gate switch and that it is ad-
justed per code.
7. Using a burnishing tool or clean rough paper, clean the
gate switch contacts if necessary. Replace the door oper-
ator cover.
8. Check for excessive bearing wear.
To Next Page
Loading...