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STACKING PRO-JAX UNITS FOR ADDITIONAL HEIGHT
According to OSHA, all scaffolds must be restrained from tipping. This can be accomplished in one
of three ways:
1. For free standing scaffolds, the maximum platform height must not exceed 3 times* the
narrowest base dimension.
2. Guying the scaffold.
3. Tying the scaffold to a wall or other solid structure.
*Federal OSHA allows a maximum platform height of 4 times the narrowest base dimension. However, bil-jax recommends
that the maximum height be limited to 3 times the narrowest base dimension on all Pro-Jax utility scaffolds.
When additional platform height is required on a free standing scaffold, outriggers may be used to
extend the base dimensions. bil-jax has two different size outriggers available for use with Pro-Jax
units. Narrow outriggers (18") are for use with two frame high scaffolds and wide outriggers (46") are
for use with three frame high scaffolds.
WARNING
Whenever Pro-Jax units are stacked, outriggers are required! Do not use a
Pro-Jax utility scaffold over 1 frame high without outriggers. Failure to use
outriggers will make scaffold more likely to tip over causing serious injury
or death!!
BUILDING A TWO FRAME HIGH SCAFFOLD
Top View
Outrigger
Frame
Side View
Outrigger
Tighten
Securely
Frame
Leg
STEP THREE
—
Clamp outrigger to end frame at a 90
°
angle to the side brace.
Tighten clamp securely. Clamp must be flush against scaffold leg and casters must be
in contact with the surface.
STEP ONE
—
Erect the base
unit (one frame high scaffold) by
following the previous instruction.
STEP TWO
—
Install casters into all four
(4) outriggers and secure with snap pin
provided with each caster. Set caster brake.
If the platform height needed is between 6' and 11' 6", it will be necessary to install narrow (18")
outriggers and a second scaffold level prior to use.
STEP FOUR
—
Add
second scaffold level by
stacking end frame over
insert pins in top of base
unit end frames. Secure
in place with snap pins.
STEP FIVE
—
Install side
braces (minimum two), platform,
and guard railing at desired
height per the previous
instructions (Building a One
Frame High Scaffold).
