Table 3:
Hoist Model No.
Rated
Capacity
(kg)
No.
Chain
Falls
Speed with Rated Load
Speed with Half Load
Speed with No Load
fpm
m/m
fpm
m/m
fpm
m/m
up
down
up
down
up
down
up
down
up
down
up
down
ML250KS
250
1
40
90
12.2
27.4
53
71
16.1
21.6
71
53
21.6
16.1
ML250K
101
117
30.8
35.7
145
111
44.2
33.8
171
99
52.1
30.1
ML250KR
26
38
7.9
11.6
34
36
10.4
11
42
30
12.8
9.1
ML500KS
500
1
22
66
6.7
20.1
30
44
9.1
13.4
44
32
13.4
9.7
ML500K
55
97
16.8
29.6
80
72
24.4
22
106
59
32.3
18.0
ML500KR
2
13
20
4.0
6.1
17
18
5.2
5.5
21
15
6.4
4.6
ML1000KS
1000
2
11
33
3.4
10
15
22
4.6
6.7
22
16
6.7
4.9
ML1000K
28
49
8.5
14.9
40
36
12.2
11
53
30
16.1
9.1
Note:
Performance figures based on 70 SCFM (45 SCFM for MLKS and MLKR Hoists) at 90 psig (630 kPa) air supply at hoist inlet.
Pendant control models use approximately 4 SCFM more air.
INSTALLATION
Prior to installing the hoist, carefully inspect it for possible shipping damage. Hoists
are supplied fully lubricated from the factory. Lubrication of the load chain is
recommended before initial hoist operation.
WARNING
•
A falling load can cause injury or death. Before installing, read “Product
Safety Information Manual”.
•
The supporting structures and load-attaching devices used in conjunction
with this hoist must provide adequate support to handle all hoist
operations plus the weight of the hoist and attached equipment. This is the
customer’s responsibility. If in doubt, consult a registered structural
engineer.
CAUTION
•
Owners and users are advised to examine specific, local or other
regulations, including American Society of Mechanical Engineers and/or
OSHA Regulations which may apply to a particular type of use of this
product before installing or putting hoist to use.
n
Hoist
Make certain your hoist is properly installed. A little extra time and effort in so doing
can contribute a lot toward preventing accidents and helping you get the best
service possible.
Always make certain the supporting member from which the hoist is suspended is
strong enough to support the weight of the hoist plus the weight of a maximum
rated load plus a generous factor of at least 500% of the combined weights.
If the hoist is suspended by a top hook, the supporting member should rest
completely within the saddle of the hook and be centered directly above the hook
shank. Do not use a supporting member that tilts the hoist to one side or the other.
n
Hook Mounted Hoist Installation
Place hook over mounting structure. Make sure hook latch is engaged.
n
Trolley Mounted Hoist Installation
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. The distance between the wheel flanges should be 3/16 in. to 1/4 in. (4.76
mm to 6.35 mm) greater than the width of the beam flange. The number of spacers
(257) between the trolley side plate (250) 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.
(For additional information refer to Installation and Maintenance Manual Form
P6609 for Vane Motor Driven Trolleys.)
Refer to Dwg. MHP0866 on page 7, A. Minimum of one spacer required;
Note: Ensure X-Y=3/16 to 1/4 in. (5 to 6 mm)
WARNING
•
At least one Mounting Spacer (257) must he used between the head of each
Trolley Bracket Bolt (255) and the Trolley Bracket (250) and between each
Trolley Bolt Nut (256) and the Trolley Bracket. Failure to do this could cause
the hoist to fall when used improperly.
Torque the Trolley Bolt Nuts (256) to 150 ft-lb (203 Nm).
When installing the hoist and trolley on the beam, make certain the side plates are
parallel and vertical. After installation, operate the trolley over the entire length of
the 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.
n
Chain Container
When installing a fabric chain container on an MLK hoist, refer to drawings MHP3236
and MHP3237 in the Product parts information manual.
NOTICE
•
Make certain to adjust the balance chain so that the chain container does
not contact the load chain.
•
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.
1. Check the chain container size to make sure the length of load chain is within
the capacity of the chain container. Replace with a larger chain container, if
required.
2. Attach the chain container to the hoist.
3. Run bottom block to lowest point and run hoist in up direction to feed the chain
back into the container.
n
Air System
The supply air must be clean, lubricated and free from water or moisture. A minimum
of 90 psig (6.3 bar/630 Kpa) at the hoist motor is required to provide rated hoist
capacity.
Refer to Dwg. MHP0191 on page 7, A. Air Out; B. Lubricator; C. Regulator; D. Air
In; E. Filter.
n
Air Lines
The inside diameter of the hoist air supply lines must not be smaller than 1/2 in. (13
mm) based on a maximum of 50 ft (15 m) between the air supply and the hoist.
Contact the factory for recommended air line sizes for distances greater than 50 ft
(15 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 hoist, they
must have at least a 3/8 in. (9.5 mm) air passage. Use of smaller fittings will reduce
performance.
NOTICE
•
Always use an air line filter and lubricator.
n
Air Line Lubricator
Always use an air line lubricator with these hoists. Use a lubricator having an inlet
and outlet at least as large as the inlet on the hoist motor. Install the air line lubricator
as close to the air inlet on the hoist motor as possible. Refer to “ACCESSORIES” in the
Product parts information manual.
4
Form 47112677 Edition 2
Содержание ML1000K
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