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03/10/03
FIG. 3: Center of Gravity
Diagram
Vertical center of gravity (A)
calculated
from
bottom
platform floor
A: Vertical center
Model
of gravity in
inches (~cm)
WP-3636
17.9 (45.5cm)
WP-3648
16.8 (42.7cm)
WP-4848
16.6 (42.2cm)
WP-4848-FF
16.6 (42.2cm)
WP-3636-84B
23.5 (59.7cm)
WP-3648-84B
21.9 (55.6cm)
WP-4848-84B
22.0 (55.9cm)
SP-175
11.4 (28.9cm)
Fig. 4: Mast Guard Hinge
Upper mast guard
Lower mast guard
Horizontal center of gravity (B) measured from back of mast guard
of
B: Horizontal
center of gravity
in inches (~cm)
13.6 (34.5cm)
19.0 (48.3cm)
18.6 (47.2cm)
18.6 (47.2cm)
12.3 (31.2cm)
17.4 (44.2cm)
17.0 (43.2cm)
16.8 (42.5cm)
Close-up of connection between top
and bottom portions of mast guard.
Copyright 2010 Vestil Manufacturing Corp.
5/9/2011
Model
WP-3636-DD
WP-3648-DD
WP-4848-DD
WP-4848-DD-FF
WP-3636-84B-DD
WP-3648-84B-DD
WP-4848-84B-DD
WP-3737-FD
Hex nut
Bolt
7 of 14
WP manual, operation instructions.doc
Mast
Lanyard attachment points
guard
WP-series
center of gravity
(C.O.G.)
A: Vertical center
B: Horizontal
of gravity in
center of gravity
inches (~cm)
in inches (~cm)
18.1 (46.0cm)
13.7 (34.8cm)
18.8 (47.8cm)
17.0 (43.2cm)
16.8 (42.7cm)
18.5 (47.0cm)
16.8 (42.7cm)
18.5 (47.0cm)
23.4 (59.4cm)
12.5 (31.8cm)
21.9 (55.6cm)
17.3 (43.9cm)
21.9 (55.6cm)
17.0 (43.2cm)
16.5 (41.9cm)
18.0 (45.7cm)
guard is improperly fastened, it
cannot
adequately
platform occupants.
make sure that hinge fasteners
(circled in the drawings) are
tightened to 35ft·lb of torque.
Retighten the connection to 35
ft·lb whenever:
1. The work platform is taken
out of storage:
Raise the upper portion of
the mast guard, and then
Tighten the bolts and nuts.
2. If the mast guard is bumped
or deflected from vertical.
Immediately
platform to the ground; then
Straighten the mast guard
(return
it
to
orientation) and retighten the
bolts and nuts.
If the mast
protect
Therefore,
lower
the
the
vertical
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