RYTEC Turbo-Slide, Owner'S Manual

Page: 22 / 50

14
ADJUSTMENTS
ADJUSTMENTS
LIMIT SWITCHES
The fully open and fully closed limit switches are
electronically controlled and adjusted through the
control panel. To adjust the door limit settings, see
the Rytec System 4 Drive & Control Installation &
Owner’s Manual.
DRIVE CHAIN ADJUSTMENT
Drive chain tension is controlled by the position of the
tension/return idler pulley. The position of the
tension/return idler pulley is controlled by one pair of
tension adjusters.
1. To adjust the tension of the drive belt, first move
the door to the fully closed position.
2. Turn off the power to the door.
The disconnect must be in the OFF position and
properly locked and tagged before performing the
following procedure.
IMPORTANT: When adjusting the return idler-
tensioner assembly, confirm that
the idler gear is centered between
the roller tracks. (See Figure 33)
Figure 33
3. Initially the tension of the chain is set at the
factory. Tighten or loosen the chain drive by
adjusting the bolt in the return idler-tensioner
assembly. Typically this needs to be done
about every 250,000 cycles, but this will vary
with the door size, environmental conditions,
etc.
The tensioner should have a ¾” gap
between the housing and bottom of the
“banana” chain glide. (See Figures 34 and
35)
Figure 34
Figure 35
4. Once the chain tension is set, verify that the
return idler-tensioner assembly is securely bolted
in place. (See Figure 34)
5. If the chain tension requires further adjustment,
reposition the return idler-tensioner assembly
(tension pulley) accordingly.
6. Restore power to the door and return to service.
For the door to operate at its maximum
efficiency, proper chain tension should be
maintained. If the drive chain is too loose
the chain may jump off the sprocket or wear
out from rubbing on other parts. If the chain
drive is too tight it may cause premature
wear of the chain and/or bearings.
DOOR PANEL ALIGNMENT AND ADJUSTMENT
Door panel alignment is controlled by the position of
the mounted head assembly and the door swivel
hangers. If adjustment is necessary, the sides of
each panel can be independently adjusted up or
down by repositioning the trolley bolt along the swivel
hanger barrel. (See Figures 36 and 37)
1. Move the door to the fully closed position.
2. Turn off the power to the door.
Chain Drive
Tensioner
Adjusting bolt
Locknuts Adjusting
nut
¾”
Banana
Chain Glide
Tensioner
Locknuts Adjusting
Nut
Chain Drive
Tensioner
Adjusting bolt