INST 00226 230
2016 PORTER ATHLETIC, INC. ALL RIGHTS RESERVED.
12/12/2016
I
NSTALLATION
I
NSTRUCTIONS
E
LECTRIC
W
INCHES
No.
713220
1.
WINCH/PULLEY LOCATION
. Placements of the winch and hoist pulley are critical to ensure the proper and safe folding
operation of the backstop. Refer to the backstop installation drawing(s) provided with this project for all dimensional data
parameters.
A.
When the unit is in the "UP" (stored) position, the cable tie-off at the mast must be directly below the pulley sheave. Failure
to do so will place additional lateral loads on the superstructure. See Illustration 1.
B.
The pulley is to be located on the
exact centerline of the backstop
mast as indicated on the backstop
installation drawings. Refer to
Pages 26 and 27 in the Basketball
Backstop Installation Manual for
complete cable tie-off details.
C.
To avoid excessive wear on the
pulley sheave and chafing of the
cable against previous wraps on
the drum, the sheave is ideally
located on the centerline of the
drum. HOWEVER, if the cable
does not wind evenly on the drum,
the winch may be offset slightly
from the sheave centerline to
obtain an even wrap on the drum.
See Illustration 2.
2.
SECURING CABLE TO THE WINCH DRUM
. Route plain end of cable through hole in the
winch drum and secure with set screw. Note that cable must be taped before cutting to prevent the
cable end from fraying. Be sure to route cable in the
UNDERWIND
direction as detailed in
Illustration 3.
THERE MUST BE A MINIMUM OF THREE (3) WRAPS OF CABLE ON
THE DRUM WITH THE BACKSTOP IN THE "DOWN" POSITION.
CORRECT
Illustration 1
WRONG !
WRONG !
