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Prior to installing unit, carefully inspect it for possible shipping
damage. Units are supplied fully lubricated from the factory.
• Owners and users are advised to examine specific, local or
other regulations, including American National Standards
Institute and/or OSHA Regulations which may apply to a
particular type of use of this product before installing or
putting the unit into use.
• A falling load can cause injury or death. Before installing,
read "SAFETY INFORMATION".
Mounting
Make certain unit is properly installed. A little extra time and
effort in doing so can contribute a lot toward preventing accidents
and helping you get the best service possible.
Always make certain supporting member from which unit is
suspended is strong enough to support the weight of the unit plus
the weight of a maximum rated load plus a generous factor of at
least 300% of the combined weights. If in doubt, contact a
registered structural engineer.
Securely mount unit to support using six or fourteen 1/2-13 grade
8 capscrews and torque to 76 ft lb (103 Nm) dry or 57 ft lb (77
Nm) lubricated.
Air System
The air supply system should be purged for a minimum of 30
seconds prior to connection of the balancer and controls. This will
remove any debris from air lines and help prevent damage to
controls at start up.
• Do not exceed 100 psig (6.9 bar/690 kPa) inlet pressure. Do
not use a lubricator of any kind. Oil will damage internal
components.
• The air supply must be clean and free from water and water
vapor.
Air Lines
The inside diameter of the unit air supply lines must not be smaller
than 3/8 inch (10 mm) based on a maximum of 100 feet (30 m)
between the air supply and the unit. Contact the factory for
recommended air line sizes for distances greater than 100 feet
(30 m). Before making final connections, all air supply lines
should be purged before connecting to unit inlet. Supply lines
should be as short and straight as installation conditions will
permit. Long transmission lines and excessive use of fittings,
elbows, tees, globe valves, etc. cause a reduction in pressure due to
restrictions and surface friction in the lines. If quick-disconnect
fittings are used at the inlet of the unit, they must have at least a
3/16 inch (10 mm) air passage. Use of smaller fittings will reduce
performance.
MHD56162 – Edition 1
INSTALLATION
REVIEW COPY 9-7-99
Connection of Air Lines
Air Supply
Up
(Black)
(Dwg. MHP1902)
ZA Control
The control hose is pre-assembled to the Manipulator Arm.
Control hoses are black, yellow and white precoiled hose
assemblies. The yellow hose must be connected to the down port
of the ZA manifold. The black hose must be attached to the up
port of the ZA manifold. The white hose must be installed in the
pilot port of the balancer.
2PS Control (2 Position Sensor)
The control tubing is a tri-coil assembly. A black 3/8 inch (9.5
mm) tube supplies air to the handling device. A 5/32 inch (3.9
mm) tube supplies the pilot signal to the 2PS valve. Manipulator
Arms with a hi-lo circuit utilize a yellow 3/8 inch (9.5 mm) tube.
Air Line Filter
It is recommended that an air line strainer/filter be installed as
close as practical to the unit air inlet port. The strainer/filter should
provide 5 micron filtration and include a moisture trap. Clean
strainer/filter monthly to maintain its operating efficiency.
To maintain dry air, the frequency for draining the filter should
also be based on the condition of the air supply. We suggest the
filter be drained weekly at first. Depending on air supply
condition, a proper filter drain schedule should be established.
Moisture in Air Lines
Moisture that reaches the unit through supply lines is the chief
factor in determining the length of time between service
overhauls. Moisture traps can help to eliminate moisture. Other
methods, such as an air receiver which collects moisture before it
reaches the unit controls or an aftercooler at the compressor that
cools the air prior to distribution through the supply lines, are also
helpful.
Wire Rope
Retract wire rope completely into Balancer. Ensure wire rope is
correctly reeved through Manipulator Arm pulleys. Ensure hook
wire rope clamp does not contact pulley. Ensure wire rope end is
not frayed, use plastic cap to prevent snagging and damage to air
hoses.
Down
(Yellow)
Interlock (White)
Plug if not required.
7
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