ArmchairArchitect
Active member
Hi all,
I just took apart the main pulleys/pin to check on some things in there, which meant loosening the cables.
Now with the pulleys and cables reassembled, the front (front being where the power unit is located) of my Atlas 4 post lift is raising slower than the back (probably due to slack in the cables), and I believe the cables and/or locking latch bar need adjustment at each post.
I'm just having a hard time understanding the following procedure from the manual, particularly exactly what part/area "yoke end" and "yoke bottom" is referring to, if anyone can help:
Cable Adjustment
1. Initial Adjustment
a. Adjust cable with lift fully lowered. Loosen jam nut and tighten nut on cable
stud on top of column until yoke end is raised 1/4” (6.4 mm) and back off nut
one turn. Retighten jam nut. Repeat for all four cables.
2. Final Adjustment
a. Load a typical vehicle on lift.
b. Raise lift as high as it will travel (full height). You should hear the locking
latches click through all latch slots simultaneously.
c. Lower lift onto top latch position.
d. Check clearance:
i. Starting with the right front column, use a straight edge to mark the position
of the yoke bottom on the column.
ii. Raise lift to full height again. Mark second position. If gap between two
marks is less than 2”, adjust locking latch bar to reach clearance of 2”.
Repeat for the other three columns.
iii. Adjust locking latch bar adjusting nut so that the bottom of the topmost
latch bar slot is at least 2” below locking latch. After adjustment, tighten jam
nut underneath column top plate.
iv. If entire 2” clearance cannot be attained by adjusting the locking latch bar,
adjust the cable. Turn cable adjusting nut to raise the locking latch 2” above
bottom of latch bar slot. Tighten cable jam nut.
v. Lower lift and remove vehicle.
vi. Raise the lift to full height. LISTEN and WATCH as the fi rst locking latch
clicks into place. Synchronize the other three columns with this column by
adjusting their cables so all four latches click at same time. Tighten jam
nuts. When making changes to adjustment nuts on cable end or latch bar
stud, always leave at least two threads showing between nut and stud end.
Latches may not click in at the same time when vehicle is being raised. They
should be close. Be sure all four corners have passed the locking latch bar
slot before lowering lift on locking latches
Full user manual located here for reference. Thanks!
I just took apart the main pulleys/pin to check on some things in there, which meant loosening the cables.
Now with the pulleys and cables reassembled, the front (front being where the power unit is located) of my Atlas 4 post lift is raising slower than the back (probably due to slack in the cables), and I believe the cables and/or locking latch bar need adjustment at each post.
I'm just having a hard time understanding the following procedure from the manual, particularly exactly what part/area "yoke end" and "yoke bottom" is referring to, if anyone can help:
Cable Adjustment
1. Initial Adjustment
a. Adjust cable with lift fully lowered. Loosen jam nut and tighten nut on cable
stud on top of column until yoke end is raised 1/4” (6.4 mm) and back off nut
one turn. Retighten jam nut. Repeat for all four cables.
2. Final Adjustment
a. Load a typical vehicle on lift.
b. Raise lift as high as it will travel (full height). You should hear the locking
latches click through all latch slots simultaneously.
c. Lower lift onto top latch position.
d. Check clearance:
i. Starting with the right front column, use a straight edge to mark the position
of the yoke bottom on the column.
ii. Raise lift to full height again. Mark second position. If gap between two
marks is less than 2”, adjust locking latch bar to reach clearance of 2”.
Repeat for the other three columns.
iii. Adjust locking latch bar adjusting nut so that the bottom of the topmost
latch bar slot is at least 2” below locking latch. After adjustment, tighten jam
nut underneath column top plate.
iv. If entire 2” clearance cannot be attained by adjusting the locking latch bar,
adjust the cable. Turn cable adjusting nut to raise the locking latch 2” above
bottom of latch bar slot. Tighten cable jam nut.
v. Lower lift and remove vehicle.
vi. Raise the lift to full height. LISTEN and WATCH as the fi rst locking latch
clicks into place. Synchronize the other three columns with this column by
adjusting their cables so all four latches click at same time. Tighten jam
nuts. When making changes to adjustment nuts on cable end or latch bar
stud, always leave at least two threads showing between nut and stud end.
Latches may not click in at the same time when vehicle is being raised. They
should be close. Be sure all four corners have passed the locking latch bar
slot before lowering lift on locking latches
Full user manual located here for reference. Thanks!
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