Form MHD56406 Edition 2
3
INSTALLATION
Prior to installing product, carefully inspect it for possible shipping damage.
Hoists are supplied fully lubricated from the factory. Refer to “LUBRICATION” section
for recommended oils and lubrication intervals. Lubrication of the load chain is
recommended before initial hoist operation. Remove shipping lubrication plug and
replace with breather.
WARNING
• A falling load may result in death or serious injury. Before installing, read
the ‘Product Safety Information Manual’.
CAUTION
• 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 hoist to use.
Mounting
Ensure hoist is properly installed before use. Seek advice from qualified source
should questions arise before and during installation.
Ensure structure from which hoist is suspended is able to support the weight of the
hoist plus the weight of the maximum rated load with a generous factor of at least
500% of the combined weights.
Hook Mounted Hoist
Place hook over mounting structure. Make sure hook latch is engaged.
When hoist is suspended by a top hook, the supporting member should rest
completely within the saddle of the hook and be centered directly above hook shank.
CAUTION
• Do not use a supporting member that tilts hoist.
Trolley Mounted Hoist
When installing a trolley on a beam, measure the beam flange and temporarily install
the trolley on the hoist to determine the exact distribution and arrangement of the
spacers. Adjust the spacers in accordance with the trolley manufacturer’s literature
to provide the correct distance between the wheel flange and the beam. The number
of spacers between the trolley side plate and the mounting lug on the hoist must be
the same in all four locations in order to keep the hoist centered under the I-beam.
The remaining spacers must be equally distributed on the outside of the side plates.
WARNING
• At least one mounting spacer must be used between the head of each trolley
bracket bolt and the trolley bracket and between each trolley bolt nut and the
trolley bracket. Failure to do this could cause the hoist to fall when used
improperly.
Ensure torque trolley bolts or nuts are torqued in accordance with manufacturer’s
specifications. For installation of hoist and trolley on beam, make certain the side
plates are parallel and vertical.
After installation ensure beam stops are in place, operate trolley over entire length
of beam with a capacity load suspended 4 to 6 inches (10 to 15 cms) off the floor.
CAUTION
• To avoid an unbalanced load which may damage the trolley, the hoist must
be centered under the trolley.
NOTICE
• Trolley wheels ride on the top of the lower flange of the beam.
Air Supply
The air supply must be clean, free from moisture and lubricated to ensure optimum
motor performance. Foreign particles, moisture and lack of lubrication are the
primary causes of premature motor wear and breakdown. Using an air filter, lubricator
and moisture separator will improve overall hoist performance and reduce
unscheduled downtime.
Refer to ‘General Specifications’ on page 2. If air supply varies from what is
recommended, product performance will change. The compressed air temperature
must not exceed 120° F (55° C) at the motor air inlet.
Refer to Dwg. MHP0191 on page 6,
A.
Air Out;
B.
Lubricator;
C.
Regulator;
D.
Air In;
E.
Filter.
Air Lines
The inside diameter of air supply lines must not be smaller than 1/2 in (13 mm) for
flexible lines and 1/2 in. (13 mm) for connectors. Before making final connections,
all air supply lines should be purged with clean, moisture free air or nitrogen before
connecting to 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. Note: The inlet strainer is a 3/8 NPT thread.
Air Line Lubricator (standard)
The use of an air line lubricator is required and it should be replenished daily and set
to provide 2 to 3 drops per minute of IR #10 (10W non-detergent) tool oil. The
lubricator must have an inlet and outlet at least as large as the inlet on the motor
and capable of passing at least 150 percent of the hoist SCFM requirement. Install
the lubricator as close to the air inlet of the motor as possible.
CAUTION
• Lubricator must be located no more than 10 ft (3 m) from the motor.
• Shut off air supply before filling air line lubricator.
Air Line Filter
Place the strainer/filter as close as practical to the motor air inlet port, but upstream
from, the lubricator, to prevent dirt from entering the motor. The strainer/filter
should provide 20 micron filtration and include a moisture trap. Clean the strainer/
filter periodically to maintain its operating efficiency.
Start-Up Procedures
For hoists that have been in storage the following start-up procedures are required.
1. Give the hoist an inspection conforming to the requirements in the
“INSPECTION” section on page 4.
2. Inject a small amount of ISO VG 32 (SAE 10W) oil in the motor inlet port.
3. Operate the motor for 10 seconds in both directions to flush out any impurities.
a.
With no load, operate hoist in “UP” direction and adjust air pressure to 90
psi (6.2 bar).
4. The hoist is now ready for normal use.
Main Air Shut-off Valve
All hoists should have a wall mounted shut-off valve.
Chain Container (optional feature)
The chain container is an optional accessory. Check the chain container size to make
sure the length of the load chain is within the capacity of the chain container.
Replace with a larger chain container if required. When a chain bucket is used,
always connect the free end of the chain to the hoist.
Install the chain container per the instructions provided with the chain container
kit. Run bottom block to the lowest point and run hoist in the “UP” direction to feed
the chain back into the container.
NOTICE
• Allow chain to pile naturally in the chain container. Piling the chain
carelessly into the container by hand may lead to kinking or twisting that will
jam the hoist.
Pendant
Check that all hose connections are tight and that hoses are not twisted or crimped.
Contact the factory for pendant lengths greater than 6 ft (2 m).
NOTICE
• To avoid damaging the pendant hose, make sure the strain relief cable, not
the pendant hose, is supporting the weight of the pendant.
