Install The Idler Pulley - Craftsman 139.54990 Manual Del Propietário

ASSEMBLY STEP 3

Install the Idler Pulley

1. Lay the chain/cable beside the rail, as shown. Grasp the end of
the cable and pass approximately 12" (30 cm) of cable through
the window. Allow it to hang until Assembly Step 4.
2. Remove the tape from the idler pulley. The inside center
should be pre-greased. If dry, regrease to ensure proper
operation.
3. Place the idler pulley into the window as shown.
4. Insert the idler bolt from the top through the rail and pulley.
Tighten with a 3/8" lock washer and nut underneath the rail
until the lock washer is compressed.
5. Rotate the pulley to be sure it spins freely.
6. Locate the rail tab. The rail tab is between the idler bolt and
the trolley in the front rail section. Use a flat head screwdriver
and lift the rail tab until the tab is vertical (90º).
Chain and Cable
Idler Bolt
HARDWARE SHOWN ACTUAL SIZE
Idler Bolt
Rail Tab
Screwdriver
Trolley
Rail Tab
Idler Pulley
Lock
Washer
3/8"
Nut 3/8"
Nut 3/8"
9
CORRECT
INCORRECT
Cable Link
Lock Washer 3/8"