11
should be attached to the worker’s harness shoulder D-rings.
The secondary lifeline should be connected to the worker’s
harness back D-ring. For material handling applications,
connect the winch line to the load using a tie-off adapter or
other anchoring device.
B. OPERATING THE DIGITAL WINCH:
Attach the winch to the
support structure as described in section 3.4. Install the winch
crank handle into the 9:1 or 4:1 drive hub and push firmly
inward until the spring loaded tab on the handle snaps in place
(the grip on the handle should face outward).
NOTE:
The 4:1 drive is used under normal working conditions for
raising and lowering workers
To remove the crank handle from the hub, push down on the
spring loaded tab and pull the handle out of the hub.
Feed the line off the winch drum by rotating the crank handle
in the lowering direction (counterclockwise). Apply about
10 lbs. (4.5 kg) of tension to the line while feeding it off the
drum. Route the line over the support structure pulley system.
Refer to the support structure user instructions for cable routing.
TO RAISE A LOAD:
Rotate the winch crank handle in the raise
direction (clockwise). To hold or momentarily suspend the load,
stop cranking. The automatic clutch/brake will hold the load if
handle is released. Do not exceed the rated capacity of 450 lbs.
(204 kg)
TO LOWER A LOAD:
Rotate the winch crank handle in the lower
direction (counterclockwise). When lowering line without a load,
maintain about 10 lbs. (4.5 kg) of tension on the line to aid
payout and prevent cable entanglement.
C. IMPACT INDICATOR:
The Digital Winch is
supplied with a connecting
swiveling hook that
incorporates an impact
indicator. This indicator
functions if the winch is
severely impact loaded
or if the lifting capacity
is exceeded by a preset
amount. A hook that has
been subjected to an
impact load will display a
red band in the swivel area
(see Figure 7.) See section
5.0 for inspection of impact
indicator.
Figure 7 - Impact Indicator
Normal
Snap Hook
Impacted
Snap Hook
Red band
indicates
impact
load.
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