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10
HANDS-FREE PORTABLE WORKSTATION ENG
1. Set the lock / release switch to the “release” position
and ensure that the foot pedal is released.
2. Slide the moving jaw (1) fully from its tracks. (See N)
3. Rotate the jaw 180 degrees and re-insert it into the
track. (See P)
WARNING: Whenever clamping objects
with the moving jaw reversed, ensure
the workpiece sits down onto the sliding jaw,
and is parallel to it. Avoid clamping workpieces
at the top of the jaws (with a gap between the
workpiece and the base of the moving jaw) as
excessive pedal pressure could damage the unit.
Note: Some operations such as hand sawing
or planing exert enough pressure to cause
the JAWHORSE
®
SheetMaster to slide. In
these situations, it is acceptable to hold the
JAWHORSE
®
SheetMaster in place by standing
on the foot plate. (See R) When clamping
large or heavy materials, provide outboard
support. Never step on the footplate to prevent
JAWHORSE
®
SheetMaster from tipping over,
especially when using power tools. (See Q)
—CLAMPING SQUARE TUBING
Clamp square tubing or similar material either on the
diagonal or flat side. Use the jaws to securely hold your
material. (See S)
—REMOVING THE JAW FACINGS (See T)
The jaw facings can be removed to achieve a greater
clamping range, replace if worn or damaged, or when
fitting the optional jaws.
Remove the screws in the center of jaws, the jaw facing (2,
3) can be pulled off from the jaw by hand.
OPTIONAL ACCESSORIES:
1) WELDING JAW (See U)
The welding jaw helps to hold items while welding. The
thick walled cast aluminum jaws can hold the larger
part. The holding arm clamps the second part that is to
be welded onto the larger part, and more importantly,
accurately positions it.
2) LOG AND CHAINSAW JAW (See V-X)
Suitable for gripping logs or poles, and holding a chainsaw
for sharpening. These steel jaws also bolt onto the standard
steel jaws and are zinc plated for corrosion resistance.
Chain saw clamping blocks pivot back out of the way when
not in use and pivot forward when required.
Logs or poles up to 10˝ (250mm) in diameter are gripped
firmly for chain sawing, drilling, rabbeting etc.
The chain saw clamping vice makes an ideal clamp to hold
a chainsaw while sharpening the teeth. Two pairs of vices,
either side of the bar, ensure the clamping jaws are clear of
the chain, which can then be rotated as each tooth is filed.
3) SADDLEBAG
Saddlebag provides a convenient place to hold tools and
other bits and pieces.
4) Tool tray
Tool tray provides a convenient place to hold tools, bits and
parts.
ACCESSORIES:
Leg Support Bracket
For full size 8´ x 4´ sheets, outrigger legs are needed also.
The rear short outrigger should be screwed to the jaw,
but make sure the front longer outrigger just rests on the
jaw. Clamp the long outrigger to the legs, using the leg
support bracket provided to increase stability, and avoid
tipping. Be sure to place the support leg on the same side
of the material where the tipping hazard exsits. The front
outrigger supports must be wider than the sheet supported,
approximately 9 feet wide for a 4´ x 8´ sheet (See Y)
For smaller sheets (less than 4´×4´) an outrigger probably
won’t be needed.
WARNING: Do not use steel outriggers.
You may cut through them with your
saw, possibly damaging your blade or jamming
the saw in the cut. Wooden outriggers are
recommended.
WARNING: Do not clamp thin sheets,
because they may bow upward under
clamping forces before sufficient clamp force is
generated to hold.
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