Connect Door Arm To Trolley (Sectional Door) - Craftsman 139.53675SRT Owner's Manual

Installation Step 12
Connect Door Arm to Trolley
Follow Instructions which apply to your door
type as tUustrated below and on page 27.
ll,lllllll i Ill Ill :"
Make sure garage door is fully closed, Pull the emergency release handle to disconnect the outer trolley
from the inner trolley, Slide the outer trolley back (away from the door) about 2" as shown in
Figures I, 2 and 3.
Figure 1:
- Fasten straight door arm section to outer trolley
with the the 5/16"x1" clevis pin. Secure the
connection with a ring fastener.
- Fasten curved door arm to the door bracket in the
same way, using the 5/16"xl-1/4"c/evispin.
Figure 2:
• Bring arm sections together. Find two pairs of holes
that line up and join sections. Select holes as far
apart as possible to increase door arm rigidity°
Inner Trotley
Ring tlI _ 16_I-
Fastener
/
iP!
,u _ lol -- S_ght
Curved Figure 1
5_'16"x1-114"
Hole Alignment Alternative
Figure 3:
- if holes in curved arm are above holes in straight
arm, disconnect straight arm. Cut about 6" from
the sol{d end. Reconnect to trolley with cut end
down as shown.
- Bring arm sections together.
° Find two pairs of holes that line up and join with
screws, lock washers and nuts.
Hardware Shown Actual Size
©
Nut 5/16"-18
Clevis Pin
©©
Lock Washer 5/16" Ring Fastener
o
C_ev[s P_n
5/16"xI' 0"roIley)
Hex Screw
5t'16_xl-lt4 ° (Door Bracket} 5/16'-18x7/8"
• _ Cu! Th_sEnd
Figure 3
Proceed to Adjustment Step 1, page 28_ Trolley wilt re-engage automatically when the opener is operated.
26