Hired-Hand PowerTrak: Load Block - Drive Screw Replacement - Manual (Page 3)

HIRED-HAND MFG., INC. • 1733 County Rd 68 • Bremen, Alabama 35033 · Phone 256-287-1000 • Fax 256-287-2000
Part No. 4802-5093 rev 5-07 Page 3 of 8
Figure 5 – Upper Radial Bearing
Set Screws
Set
Screws
Figure 4 – Delrin Bushing
Set
Screw
Delrin
Bushing
Figure 7 – Remove Bottom Plate
Bottom
Plate
Figure 6 – Separate Drive Screw
from Load Block
Delrin
Bushing
Load
Block
Assembly
Drive
Screw
(15) Loosen the delrin bushing set screw using a 3/32"
allen wrench. Rotate the delrin bushing upward
approximately 12 inches. Refer to Figure 4.
(16) While supporting the load block and drive
screw, loosen the upper radial bearing two
set screws and carefully lower the drive
screw to rest on the delrin bushing. Refer
to Figure 5 and 6.
(17) Turn the drive screw by hand and run the load
block off the top of the drive screw. Refer to
Figure 6.
(18) Remove the bottom plate four screws & nuts and
lay bottom plate to the side. Refer to Figure 7.
NOTE: While the bottom plate is loose, ensure that extra
care is taken to prevent disconnecting the wires
from the limit switch assembly to the terminal
block.