4.11
Section 4: Installation - Trolley
Drawbar Assembly
3) Insert the carriage into the tracks as shown in Fig. 4.
4) Place the header bracket in position around the drawbar track.
Do not insert the track bolts and lock nuts at this time. The
header bracket will be held in place (temporarily) by the idler pin
which holds the pulley.
5) Install the idler pulley inside the track by inserting the 7/16” x
7” idler pin through one side of the track and feed it through an
idler sleeve and the idler pulley followed by the second sleeve.
Place flat washer (7/16” x 1-1/4”) over end of idler pin. Secure
idler pin using cotter pin. Fig. 5.
NOTE:
The end of the carriage with the chain tension adjustment
bolt should be toward the operator.
CARRIAGE
RAIL
OPERATOR
DOOR
Figure 4
NOTE:
For building of the header bracket assembly on a Dual Trolley
or Sidemount Trolley unit see the separate Drawbar instruction sheet
for Sidemount and Dual Trolley models.
HEADER
BRACKET
WASHER
COTTER PIN
IDLER PIN
IDLER PULLEY
TRACK BOLTS
/LOCKNUTS
DO NOT INSTALL YET!
SLEEVE
WASHER
& COTTER PIN
THIS SIDE
Figure 5
