Attach a wire rope lifting sling with a shackle to the front lifting lug on the spotter
and attach the headache ball on the pile line (aux hoist) to the wire rope lifting
sling. Remove the slack in the pile line (aux. hoist) to slightly support the spotter.
Pull the rope tag line attached to the manual release on the spotter slide to
disengage the spotter slide pin from the hole in the lead tower. Hold the spotter
slide pin in the retracted (disengaged) position.
Lower the spotter using the pile line (aux. hoist). Reinstall the retainer pin in the
spotter slide to keep the spotter slide pin disengaged from the lead tower and allow
unrestricted movement of the spotter slide along the lead tower.
Using the pile line (aux. hoist), raise the spotter slide along the lead tower to allow
the base of the lead tower to be moved close to the rear pintle hook.
Use care when lowering the impact hammer on the lead tower to
avoid damage to the pile gate.
Using the hammer line (main hoist), lower the impact hammer down and rest it
gently on top of the pile gate. If the pile gate has been removed for sheet pile
driving operations, remove the quick-release pin securing the pile gate stop on the
foot roller, extend the stop beyond the front of the lead tower, reinsert the quick-
release pin, and rest the impact hammer gently on the pile gate stop.
Rotate the boom to center it over the rear of the crane carrier and engage the
SWING LOCK pin by pulling the SWING LOCK pin control lever in the
Loop the lead transportation chain onto the shaft on the foot roller.
Using the crane boom, raise the lead tower off of the ground and position it at a
point where the large ring on the lead transportation chain can be placed over the
rear pintle hitch. Simultaneously, the spotter slide may have to be moved upward
along the lead tower using the pile line (aux. hoist).
Place the large ring on the lead transportation chain over the rear pintle hitch and
close and secure the hitch.
Once the chain is connected, retract the boom and lower the boom to a point
where the weight of the Pile Driving System rests on the rear pintle hitch. Check
the Load Moment Indicator (LMI) display console in the superstructure cab to
ensure the majority of the load is on the rear pintle hitch. The LMI display console
should indicate no more than 1,000 lbs (454 kg).
Raise the rear and front outrigger floats but do not retract the outrigger beams into
the crane carrier if the travel path allows.
Configure the Load Moment Indicator (LMI) system on the crane for Front Hoist,
On Rubber, Pick and Carry, and Two (2) Parts of Line.
H-74 Change 1