Allmand Brothers I HYDRAULIC - Manual (Page 8)

8
HYDRAULIC MAST OPERATION
DESCRIPTION OF OPERATION
The Allmand MAXI-LITE tower assembly
consists of a three section telescoping
mast that can be raised and extended by
operating two toggle switches mounted on
the D.C. Control Panel. The lift cylinder
toggle switch operates a solenoid on a
hydraulic pump that pressurizes a cylinder
to raise the mast from the horizontal towing
position to the vertical position. The extend
cylinder toggle switch operates a solenoid
on the same hydraulic pump that pressur-
izes a cylinder that extends the telescoping
sections.
The three section mast assembly can be
rotated from the ground by loosening a knob
and rotating the entire assembly 360° to aim
the lights as necessary.
ƒ ALWAYS CHECK FOR OVERHEAD
OBSTRUCTIONS BEFORE RAISING
AND LOWERING MAST. ALLOW 35'
CLEARANCE. AVOID ALL OVERHEAD
ELECTRICAL WIRES
.
ƒ TO PREVENT INSTABILITY AND HELP
ENSURE SAFE OPERATION, ALWAYS
PROVIDE PROPER GROUND SUP-
PORT BEFORE RAISING MAST.
ƒ BEFORE RAISING MAST, VISUALLY
INSPECT EQUIPMENT FOR DAMAGE
OR WEAR. FAMILIARIZE YOURSELF
WITH THE LOCATION AND FUNCTION
OF ALL OPERATING PARTS BY STUDY-
ING THIS MANUAL. OBSERVE ALL
CAUTION DECALS LOCATED ON
EQUIPMENT.
NOTE: The latch locks the mast in the
vertical position and disengages the
sections allowing the tower assembly
to be rotated to position the lights.
!
SAFETY WARNING
TO ERECT MAST AND RAISE
LIGHTS
1. Extend both side outrigger jacks, rear jack
and tongue jack to stabilize and level the
trailer.
NOTE: Jacks should be placed only on
firm footing.
ƒ WHEN EXTENDING REAR JACK, WATCH
TO ENSURE YOU ARE CLEAR OF THE
OVERHANGING ENDS OF THE MAST.
ƒ THE SUPPLEMENTAL GROUND ROD IS A
SAFETY DEVICE THAT MAY REDUCE
THE CHANCE OF PERSONAL INJURY
FROM STRAY ELECTRICAL CURRENT
.
Therefore, Allmand recommends using
the ground rod. However, it is the user’s
responsibility to determine the require-
ments and/or applicability of local, state,
or national electrical code which governs
the use of the ground rod.
2. Attach the ground rod to the grounding lug,
and drive the ground rod fully for adequate
electrical ground, as required by local,
state, or national code.
3. Release the pin that secures the mast to
the rear mast support.
4. Operate the LIFT CYLINDER toggle switch
UP to raise the mast from horizontal to
vertical.
5. Turn black knob counterclockwise and
engage latch in strike plate. Retighten black
knob.
6. Operate the EXTEND CYLINDER toggle
switch UP to raise the lights vertically.
7. To rotate the lights, loosen the black knob
on mast and turn the tower assembly with
the handles provided. Retighten knob.
!
SAFETY WARNING