Through a combination of telescoping and booming down, slowly lower the lead
tower, allowing the base of the lead tower to move outwards away from the crane.
While lowering, ensure that the pile (aux. hoist) and hammer (main hoist) lines are
kept to the side of the lead tower.
Lower the top of the lead tower onto wood blocks placed near the lead head
adapter at the top of the lead tower. The blocks should be sufficient to raise the
top of the lead tower approximately 30-inches (76 cm) high. The boom should be
lowered to its lower limit and the boom should be at a negative angle.
Raise the rear outriggers until the rear wheels are touching the ground. Then
lower the front outriggers to tilt the crane towards the rear.
This procedure presents several opportunities for pinching body
parts between moving parts. Use care when removing the boom
nose adapter plates from the lead head adapter.
When the top of the lead tower is fully resting on the wood blocking, remove the
bolts, washer, and nuts attaching the lead head adapter bracket to the boom nose
Swing each boom nose adapter plate away from the lead head adapter and
reinstall the attaching bolts, washer, and nuts in the holes on the flange plates of
the lead head adapter.
Remove the bolts and washer securing the locking collars to the two lower boom
nose shafts. Remove the locking collars and the two boom nose adapter plates.
Store the boom nose adapter plates in the crane tool box.
Reinstall the locking collars on the two lower boom nose shafts and secure with the
bolts and washers.
Remove the temporary hydraulic hose retainer chain securing the hydraulic hose
reel lines to the spotter mounting bracket, recoil the hydraulic lines onto the hose
reel, and reconnect the retainer chain securing the tag line on the hydraulic hoses
wound on the boom-mounted hose reel.
Remove the pulley, mounted with the 15-inch anchor bungee, from the operator's
side of the hydraulic hose reel on the crane boom and store in the toolbox.
Lower the rear outriggers and level the crane.
Attach the wire rope lifting sling and nylon lifting sling to the top of the lead tower
and use the pile line (aux. hoist) of the crane to raise the top of the lead tower and
allow it to roll in towards the crane. When the top of the lead tower is within five
feet (1.5 m) of the crane carrier, lower the lead tower down onto six wood blocks
spaced three feet (0.9 m) from each lead section end.
Remove the rough-terrain wheels.
Lower the pile (aux. hoist) and hammer (main hoist) lines and remove the rope tag
Change 1 H-85