The four most important aspects of hoist operation are:
1.
Follow all safety instructions when operating hoist.
2.
Allow only people trained in safety and operation on this hoist to
operate the hoist.
3.
Subject each hoist to a regular inspection and maintenance
procedure.
4.
Be aware of the hoist capacity and weight of load at all times.
Always operate, inspect and maintain this hoist in accordance with any
applicable safety codes and regulations.
Operators must be physically competent. Operators should have no
health condition which might affect their ability to react, and they must
have good hearing, vision and depth perception. The hoist operator
must be carefully instructed in his duties and must understand the
operation of the hoist, including a study of the manufacturer's
literature. The operator must be aware of proper methods of hitching
loads and should have a good attitude regarding safety. It is the
operator's responsibility to refuse to operate the hoist under unsafe
conditions.
Initial Operating Checks
Hoists are tested for proper operation prior to leaving the factory.
Before the hoist is placed into service the following initial operating
checks should be performed.
1.
After installation of trolley mounted hoists, check to ensure the
hoist is centered below the trolley.
2.
Check for air leaks in the supply hose and fittings to pendant, and
from pendant to manifold.
3.
When first running the hoist or trolley motors a small amount of
light oil should be injected into the inlet connection to allow good
lubrication.
4.
When first operating the hoist and trolley it is recommended that
the motors be driven slowly in both directions for a few minutes.
5.
Operate the trolley along the entire length of the beam.
6.
Check operation of limit devices.
7.
Check that trolley (if equipped) and hook movement is the same
direction as arrows or information on the pendant control.
8.
Check to see that the hoist is securely connected to the overhead
crane, monorail, trolley or supporting member.
9.
Check to see that the load is securely inserted in the hook, and
that the hook latch is engaged.
10. Raise and lower a light load to check operation of the hoist brake.
11. Check hoist operation by raising and lowering a load equal to the
rated capacity of the hoist a few centimeters off the floor.
12. Check to see that the hoist is directly over the load. Do not lift the
load at an angle (side pull or "yard").
13. Inspect hoist and trolley performance when raising, moving and
lowering test load(s). Hoist and trolley must operate smoothly and
at rated specifications prior to being placed in service.
WARNING
• Only allow personnel instructed in safety and operation of this
product to operate the hoist and trolley.
• The hoist is not designed or suitable for lifting, lowering or
moving persons. Never lift loads over people.
Hoist Controls
Two-Lever Pendant (HA1 Standard)
(Refer to Dwg. MHP0671)
Two lever pendants provide operation of the hoist only. For units with
powered trolleys a four lever pendant is required. Refer to
manufacturers information on Pendant Throttle Handle Assemblies for
two and three motor functions.
The pendant control throttle uses two separate levers for hoist operation.
Direction of hook travel is controlled by whichever lever is depressed.
1.
To start hoist operation press the "ON" button.
2.
To operate hoist, press the "UP" or "DOWN" control lever.
3.
In the event of an emergency all hoist operation can be stopped by
pushing the emergency stop button. This will prevent air from
reaching the hoist motor which will stop any movement.
4.
The "OFF" button will also stop hoist operation if pressed.
5.
The "ON" button must be pushed to restart the hoist after the
"Emergency Stop" or "OFF" button have been used.
OPERATION
Accu-Trol
Pendant (HA2 Standard)
®
(Refer to Dwg. MHP0756)
Refer to the Accu-Trol
for additional information.
Accu-Trol
pendants can provide multiple component operation and are
®
available with 2, 4 or 6 buttons.
The pendant control housing encases the emergency stop palm valve,
air supply "ON" and "OFF" buttons, and the buttons necessary to
operate the hoist and trolley (if equipped). Direction of hoist and/or
trolley travel is controlled by whichever button is depressed.
1.
To start hoist operation press the "ON" button.
2.
To operate hoist, press the appropriate "HOIST RAISE" or
"HOIST LOWER" control button.
3.
In the event of an emergency all hoist operation can be stopped by
depressing the emergency stop palm valve. This will prevent air
from reaching the hoist motor which will stop any movement.
4.
The "OFF" button will also stop hoist operation if pressed.
5.
The "ON" button must be pushed to restart the hoist after the
"Emergency Stop" or "OFF" button have been used.
6.
To operate trolley, press the appropriate "TROLLEY RIGHT" or
"TROLLEY LEFT" control button.
Emergency Stop Palm Valves
The two-lever and Accu-Trol® pendants are equipped with an
emergency stop palm valve. When activated hoist (trolley, if equipped)
operation will stop and air to the hoist will be isolated.
To operate:
1.
Depress the emergency stop palm valve.
5
pendant manual, Form Number MHD56014,
®