SUTPHEN TOWERS, INC. 2012
Manual-2012
_SL75-SA75-SP70.docx
Page 15 of 55
8/31/2012
TOWER OPERATION
Never operate the tower without first deploying the stabilizer jacks with
proper ground pads beneath them.
At all times, the ground operator must be at the controls, standing on the
slide out step, for safe operation.
GROUND STABILIZERS
The ground stabilizers of the underslung design, consists of an outrigger with inner and outer
tube and a down jack hydraulic cylinder. The inner tube extends out from the outer tube of the
outrigger; this assembly is angled down to the ground by the jack cylinder, for a total span of 16
feet.
Operate the stabilizers by depressing the lower switch, located near the control box.
When operating jacks, the "high speed" switch should always be used to
increase engine RPMs and to apply correct pressures on the stabilizers.
Always place metal pads under stabilizers to ground the truck in the event
the tower comes in contact with power lines. Failure to do so could result in
serious injury or death.
RAISE/LOWER
When lifting the tower from the cradle, the first motion of the tower should be “Tower Raise”.
This should continue until the tower is well above the truck.
Raise the tower by pulling the right lever, located at the control box, outward.
Lower the tower by pushing the right lever, located at the control box, inward.
Controls in platforms (if equipped) are duplicates of lower controls.
When raising the tower, extreme caution must be used near power lines.
The operator must see the tower structure from base to tip to make sure
the tower is clear.
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