Pressure Release - Sullair 125 User Manual

E. Set parking brakes and disconnect breakaway
switch cable and all other interconnecting electri-
cal and/or brake connections, if provided.
F. Block or chock both sides of all wheels.
G. If provided, unhook chains and remove them
from the points of chain attachment on the towing
vehicle, then hook chains to bail on drawbar or
wrap chains around the drawbar and hook them
to themselves to keep chains off the ground
which might accelerate rusting.
H. Lower front screw jack and/or any front and rear
stabilizer legs. Make sure the surface they con-
tact has sufficient load bearing capability to sup-
port the weight of the compressor.
WARNING
This equipment may be tongue heavy. DO
NOT attempt to raise or lower the drawbar
by hand if the weight is more than you can
safely handle.
CAUTION
Retract the front screw jack only after
attaching the compressor to the tow vehi-
cle. Raise the screw jack to its full up posi-
tion and pull the pin connecting the jack to
the drawbar. Rotate the screw jack to its
stowed position, parallel to the drawbar,
and reinsert the pin. Make sure the jack is
secured in place prior to towing.
On two-wheeled models, fully retract front
screw jack and any rear stabilizer legs. If a
caster wheel is provided on the screw jack
it is part of the screw jack and can not be
removed. Follow the same procedure for
stowing away the wheeled jack as you
would for the standard screw jack. Pull the
pin connecting the jack to the drawbar and
raise the screw jack to its full up position.
Rotate the screw jack to its stowed posi-
tion, parallel to the drawbar, and reinsert
the pin. Make sure the jack is secured in
place prior to towing.
I. If a caster wheel is provided on the screw jack, it
is part of the screw jack and cannot be removed.
Follow the same procedure for stowing away the
6
wheeled jack as you would for the standard
screw jack. Raise the screw jack to its full upright
position and pull the pin connecting the jack to
the drawbar. Rotate the screw jack to its stowed
position, parallel to the drawbar and reinsert the
pin. Make sure the jack is secured in place prior
to towing.
J. Disconnect coupling device, keeping hands and
fingers clear of all pinch points. If the compressor
is provided with a drawbar, DO NOT attempt to
lift the drawbar or if hinged, to raise it to the
upright position by hand, if the weight is more
than you can safely handle. Use a screwjack or
chain fall if you cannot lift or raise the drawbar
without avoiding injury to yourself or others.
K. When possible, stow hinged drawbar in the verti-
cal upright position. Make certain it is securely
latched in the vertical upright position. Keep feet
clear of drawbar at all times to avoid crushing
accidents in case it should slip from your hands
or otherwise fall to the ground.
L. Move the towing vehicle well clear of the parked
compressor and erect hazard indicators, barri-
cades and/or flares (if at night) if compressor is
parked on or adjacent to public roads. Park so as
not to interfere with traffic.
NOTE
While not towed in the usual sense of the
word, many of these instructions are
directly applicable to skidmounted porta-
ble air compressors as well.
1.3

PRESSURE RELEASE

A. Open the pressure relief valve at least weekly to
make sure it is not blocked, closed, obstructed or
otherwise disabled.
B. Install an appropriate flow-limiting valve between
the compressor service air outlet and the shutoff
(throttle) valve, when an air hose exceeding 1/2"
(13 mm) inside diameter is to be connected to
the shutoff (throttle) valve, to reduce pressure in
case of hose failure, per OSHA Standard 29 CFR
1926.302 (b) (7) or any applicable Federal, State
and Local codes, standards and regulations.
C. When the hose is to be used to supply a mani-
fold, install an additional appropriate flow-limiting
valve between the manifold and each air hose
SECTION 1