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3.0
INSTALLATION
3.1
PLANNING: Plan your fall protection system prior to installation of the Digital Winch. Account for all factors that may
affect your safety before, during and after a fall. Consider all requirements, limitations and specifications defined in
Section 2 and Table 1.
3.2
INSTALLING WINCH TO DAVIT ARM OR TRIPOD:
WINCH INSTALLATION: See Figure 8.
Step 1: Install the Winch onto the support structure by inserting the slotted end of the quick Mount Bracket onto the Fixed
Pin (A) on the Mounting Bracket.
Step 2: Pivot the Winch upwards to align the holes in the Mounting Brackets.
Step 3: Insert the Locking Detent Pin (B) through the holes securing the Winch to the support structure.
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Wire rope directional sheaves must have a minimum tread diameter of 2.5 inches (6.4 cm).
3.3
OPERATION OF WINCH:
A. CONNECTING THE WINCH LINE TO A LOAD: See Figure 10. A: Winch Line, B: Y-Type Lanyard, C: Secondary
Lifeline, D: Shoulder D-ring, E: Back D-ring, F: Tie-off Adapter, G: Material Load. For applications that do not require
a secondary PFAS, the winch line should be connected to the worker's harness back D-ring. For applications requiring
a secondary PFAS, the winch line should be connected to a Y-type lanyard and this lanyard 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).
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 lb. (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 brake will hold the load if handle is released. Do not exceed the rated
capacity of 450 lb. (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 lb. (4.5 kg) of tension on the line to aid payout and prevent cable entanglement.
C.
IMPACT INDICATOR: See Figure 11. A: Normal snap hook, B: Impacted snap hook, C: Red band indicating impact
load. 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.
D.
WINCH REMOVAL: Disconnect the lifeline from the worker's harness or from the material load. Maintain at least
a 10 lb. (4.5 kg) load on the lifeline winding the lifeline onto the drum. Retract the lifeline through the support
structure. Continue to wind the lifeline onto the drum until the copper ferrules and thimble contact the drum.
Disconnect the Winch from the support structure.
E.
POWER DRILL HUB (SEE FIGURE 9): Optional 8512936 (A) can be attached to raise and lower the user with a
power drill (B) with a 1/2 in. (12.7 mm) drive and a max drill RPM of 300 RPM. See IFU 5903667 for more details.
3.4 LOAD ATTACHMENT: Pull on the snap hook while cranking the handle counterclockwise to extend lifeline until there
is sufficient line to comfortably attach to the worker or load. Perform the attachment away from the entrance so there
is no danger that the worker or load will fall. Use two hands when attaching the lifeline; one hand maintaining tension
on the lifeline, the other to depress the lock and open the gate on the snap hook. Insert the hook into the harness
D-ring. Release the gate and ensure the snap hook is securely locked onto the D-ring.
3.5
SYSTEM INTEGRITY: Verify the integrity of the attachment and support system as follows:
A.
Crank the Winch Handle in the raise direction until the line is snug. The worker should slowly transfer their weight to the
harness and lifeline until they are able to lift both feet off the ground.
B.
Make sure the Winch holds the worker in a stationary position. Also adjust the fit of the harness at this time so that it
does not pinch, chafe, or bind.
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Do not use the Winch for lifting or lowering of more than one person. The maximum lifting capacity is
450 lbf (2.0 KN).
3.6
LOWERING A WORKER: The attendant should turn the winch handle counterclockwise to pay out the lifeline. The
attendant should keep a gloved hand on the lifeline as it extends to keep a slight tension on the lifeline.
If the line becomes tight or slack during use, communicate with the suspended worker to determine whether there is a
problem. Correct before proceeding.
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