©2005 TRAC-RITE DOOR, INC.
Never operate door if the 3/8-16 square head set
screws are not fully tightened on the axle saddles.
WARNING
Page 7
FOR DRAWING CLARITY
HAND CHAIN NOT SHOWN
41A72 SPROCKET
ROLLER CHAIN
MAIN HOIST BODY
AXLE
AXLE SADDLE
DOOR BRACKET
Figure 11.
Components under extreme spring tension can
cause SERIOUS INJURY or DEATH. Adjustments and
repairs must be made by a qualified door mechanic
using proper tools and instructions. DO NOT
attempt to adjust door tension unless the door is in
the “UP” position and “LOCKED” in place.
WARNING
Tensioning should always be done on the side of the
door that the tension device is installed.
NOTE!
Serious injury may occur if the door tension is not
fully assumed by the pipe wrench before releasing
the tension on the tension device by pushing upward
on the spring pin. Never force the spring pin. The
door tension must be released before pushing on the
spring pin.
WARNING
PIPE WRENCH
SET SCREW
CAM LOCK
Figure 12.
13.4 Retighten all 3/8-16 square head set screws that were
loosened in 13.1.
13.5 Repeat step 13 as needed.
13.3 To add tension, grasp the end of the axle pipe with pipe
wrench and apply pressure downward. The cam locks will
disengage as pressure is being applied. The tensioner will
automatically grip the axle and hold the new tension.
spring pin. Release tension by moving the pipe wrench
backwards (see Figure 12). Release the spring pin and the
cams will engage to hold tension on the door. Repeat as many
times as necessary.
12. OPERATORS:
12.1 Manual operation -- Pull rope handle: Tie a knot in one
end of the rope. Slide the plastic handle onto the rope and
pull the knot up into the handle. Pass the other end of the
rope through the hole in the center of the bottom edge of the
door and tie another knot in the end to keep the rope from
pulling through.
12.3 Reduced-drive operator — 8:1 chain hoist assembly
should be installed as described in Section 4 and shown in
Figure 11.
12.3.1 Feed hand chain through and around pocket wheel.
Shorten chain so that it does not lay on the floor (1' to 3' off
floor). Close chain making certain there are no twists in the
chain.
12.3.2 Attach chain keeper clip to wall (4' to 5' above floor).
12.3.3 Before operating chain hoist make sure the chain hoist
assembly is secured to the axle.
13. TENSION ADJUSTMENT SYSTEM USE:
13.1 Before adjusting tension on door, loosen all 3/8-16 square
head set screws in the tensioner, axle saddle, and chain hoist
if applicable.
13.2 To remove tension, grasp the end of the axle pipe with a
pipe wrench and apply a slight amount of pressure downward
and hold. Disengage the cam lock by pushing back on the
