Technical Support and E-Warranty Certificate www.vevor.com/support
ELECTRIC CHAIN HOIST
Original instruction
BDH500B
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ELECTRIC CHAIN HOIST
BDH500B
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This is the original instruction, please read all manual instructions
carefully before operating. VEVOR reserves a clear interpretation of our
user manual. The appearance of the product shall be subject to the
product you received. Please forgive us that we won't inform you again if
there are any technology or software updates on our product.
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The symbols used in this manual are intended to alert you of the possible risks.
Please fully read the safety signs and instructions below.
The warning themselves do not prevent the risks and can not be a substitute for
proper methods of avoiding accidents.
This symbol, placed before a safety comment, indicates a kind of precaution,
waning, or danger. Ignoring this warning may lead to an accident. To reduce
the risk of injury, fire, or electrocution, please always follow the
recommendations shown below.
WARNING- To reduce the risk of injury, users must read the instruction
manual carefully.
Please refer to the appropriate section in this user manual before any operation.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:(1) This device may not cause harmful
interference,and (2) this device must accept any interference received,
including interference that may cause undesired operation.
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The users must read and understood the instruction manual completely and
clearly before operating the hoist.
Product Specifications
Model
BDH500B
Model
BDH500B
Voltage
120V,60Hz
Input Power
700 W
Chain Diameter
0.25 Inch
Rating Lifting
1100 lbs
Capacity
Lifting Speed
10 Ft/min
Lifting Height
15 Ft
Speed Ratio
137:1
Insulating Grade
B
Protecting Grade
IP40
Safety Instruction
Keep work area clean.
Cluttered areas can cause injuries.
Consider work area environment.
Do not expose electric tools to rain. Do not use electric tools in damp or wet
locations.
Keep work area well lit. do not use electric tools near flammable liquids or gases.
Guard against electric shock.
Prevent body contact with grounded surfaces, and ensure that the hoist is properly
grounded before applied to operation.
Keep children away.
Do not let visitors contact electric tools or extension cord. All visitors should be
kept away from work area.
Store idle tools
When not in use. electric tools should be stored in a dry, high or locked-up place,
out of the reach of children.
Use right tools.
Do not force small electric tools or attachments to do the heavy duty work,it will do
a better job and operate more safely at the rate for which it was intended. Do not
use electric tools for other than their intended purpose.
Dress properly.
Do not wear loose clothing or jewellery, they can be caught in moving parts, rubber
gloves and non-skid footwear are recommended when working outdoors. Wear
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protective hair covering to contain long hair,
Do not abuse cord.
Never carry electric tool by cording or yanking it to disconnect it from wall outlet.
Keep cord from heat, oil and sharp edges.
Secure work.
Maintain firm footing or be otherwise secured when operating the hoist ,use tools
to hold the workplace for safety, and free both handle to operate electric tool .
Do not overreach.
Keep proper footing and balance at all times
Maintain tools with care.
Keep electric tools sharp and clean for better and safer performance ,follow
instructions for lubricating and changing accessories . inspect electric tools cords
periodically and, if damaged ,have them repaired by an authorized service facility,
Inspect extension cords
periodically and replace if damaged . Keep handles dry,
clean and free from oil and grease.
Avoid unintentional starting.
Do not carry plugged-in electric tool with finger on switch, and be sure that the
electric tool is switched off before plugging in
Outdoor use extension cords.
When electric tool is used outdoors, use only extensions cords intended for use
outdoors and so marked
Stay alert.
Watch what you are doing. use common sense, and do not operate electric tool
when you are tired, distracted or under the influence of drugs, alcohol or
medication causing diminished control.
Check damaged parts.
Before further use of the electric tool ,a guard or other part that is damaged, check
carefully to determine that it will operate properly and perform its intended function.
Do not operate a damaged, malfunctioning unusually performing hoist.
Warning.
Read and understood the instruction manual completely and clearly before using
the hoist.
Ensure that operator know how the machine works, and how it should be
operated.
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The user shall always work in compliance with the operating instructions.
The use of any other accessory or attachment other than recommended in the
instruction manual present a risk of personal injury.
Have your tool repaired by an expert
This electric appliance is built in accordance with the relevant safety rules. The
repair of electric appliance must only be carried out by experts, otherwise it may
cause considerable danger for the user.
Additional Safety Rules
1.Do not operate the hoist until you have thoroughly read and understood this
instructions manual
2.Do not lifting more than rated load for the hoist
3.Do not use the hoist with twisted, kinked, damaged, or worn load chain.
4.Do not use the hoist to lift, support, or transport people.
5.Do not operate unless load is centered under hoist,
6.Do not attempt to lengthen the load chain or repair damaged load chain.
7.Protect the load chain of the hoist from weld splatter or other damaging
contaminants.
8.Do not operate hoist when it is restricted from forming a straight line from hook to
hook in the direction of loading.
9.Do not use load chain as a sling, or wrap chain around load.
10.Do not apply the load to the tip of the hook or to the hook latch.
11.Do not apply load unless load chain is properly seated in the chain sprocket.
12.Do not operate beyond the limits of the load chain travel.
13.Do not leave load supported by the hoist unattended unless specific measures
have been taken.
14.Do not operate a hoist unless load slings or other approved single attachments
are properly sized and seated in the hook saddle.
15.Take up slack carefully-make sure load is balanced and load holding action is
secure before continuing.
16.Shut down a hoist that malfunctions or performs unusually and report such
malfunction.
17.Make sure hoist limit switches function properly.
18.Warn personnel of approaching load.
19.Check brake function by tensioning the hoist prior to each lift operation.
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20.Avoid swinging the load or hook.
21.Make sure hook travel is in the same direction as shown on the controls.
22.Inspect the hoist regularly, replace damaged or worn parts, and keep
appropriate records of maintenance.
23.Do not use limit switches as routine operating stops. They are emergency
devices only.
24.Do not allow your attention to be diverted from operating the hoist.
25.Do not allow your attention to subjected to sharp contact with other hoist,
structures, or objects through misuse.
26.It is not allowed to use in potentially explosive atmosphere.
27.The value of the equivalent sound emission pressure level at the operator’s
position is lower than 78db.
28.Supplying power demand: voltage 120V±10%, frequency 60Hz±1%.
29.The hoist is used at relative humidity below 85%, height above sea below 1000
meters.
30.The hoist’s transportation and storage temperature may be above -25℃, below
55℃. It’s highest temperature can not exceed 70℃.
31.Be supplied with a 10 A fuse or 10 A over-current circuit-breaker to protect your
electric system.
32.Do not try to lift a fixed or plugged load.
33.Do not lift the load diagonally.
34.Avoid excessive jogging (resulting in a short motor shock).
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CIRCUIT DIAGRAM
Use Instructions
The electric chain hoist promises an improved work condition and high efficiency,
with the limit switch devices, and the features of compact structure, light weight,
easily operation and nice appearance.
Description(FIG 1)
1.
Subjection Hook
2.
Chain
3.
Chain stop
4.
Hook
5.
Hoist
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Unpacking.
After opening the carton, carefully inspect the hoist frame, cords ,hooks, CHAIN
and control station for damage that may have occurred during shipment.
Mounting the hoist.
Hang the hoist from its intended support. The structure used to support the hoist
must have sufficient strength to withstand several times the load imposed.
Suspending the hoist from an inadequate may allow the hoist and to fall and cause
injured and/or damage.
Checking for adequate voltage at hoist.
The hoist must be supplied with adequate electrical power for proper operation
and to reduce problems that may result from insufficient power(low voltage) .
These include:
1. Noisy hoist operation due to brake and/ or contactor chatter.
2. Heating of the hoist motor and other internal components as well as heating of
wires and
connectors in the circuit feeding the hoist.
3. Failure of the hoist to lift the load due to motor stalling.
4. Slowing of motors connected to the same circuit.
Checking for others.
After the hoist is suspended from its support and you have made sure the power
supply complies with the requirements the hoist is
ready for operation.
Operating Instructions
1.Check if the (emergency) stop switch is pressed. Turn the red stop switch
clockwise to engage.
2.An overload is indicated when the hoist speed slows down, it raises the load in a
jerky manner or it will not lift the load at all. Also, some clutching noise may be
heard if the hoist is loaded beyond rated capacity. If this occurs, immediately
release the “up” button to stop the operation of the hoist. At this point, the load
should be reduced to the rated capacity. when the excessive load is removed,
normal hoist operation is automatically restored.
3.The hoist is not recommended for use in any application where there is a
possibility of adding to an already suspended load to the point of overload. Also if
the hoist is used at unusual extremes of ambient temperatures, above40 ℃, or
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below -9℃,changes in lubricant properties may present possibility of damage or
injury, and in that conditions the work duty is reduced than normal operating
conditions.
4.Hoist operation is controlled by depressing the control station push buttons.
Depressing the “up” push button will move the load hook toward the hoist;
depressing the “down” push button will move the load hook away from the hoist.
5.The “up” and “down” buttons are momentary type and the hoist will operate in
the selected direction as the long as the button is held in the depressed position.
Release the push button and the hoist will stop.
6.When preparing to lift a load, be sure that the attachments to the hook are firmly
seated in hook saddle. Avoid off center loading of any kind, especially loading on
the point of the hook.
7.When lifting, raise the load only enough to clear the floor or support and check to
be sure that attachment to the hook and load are firmly seated. Continue lift only
after you are assured the load is free of all obstructions.
8.Do not use this hoist out of its work duty.
9.Stand clearing of all loads and avoid moving a load over heads of other heads of
other personnel. Warn personnel of your intention to move a load in their area.
10.Do not leave the load suspended in the air unattended.
11.Permit only qualified personnel to operate unit.
12.Do not wrap the load chain around the load and hook on itself as a choker
chain.
13.Do not allow a load to bear against the hook latch. The latch is to help maintain
the hook in position while the chain is slack before taking up the slack chain.
14.Take up a slack load chain carefully and start load easily to avoid shock and
jerking of hoist chain. If there is any evidence of overloading, immediately lower
the load and remove the excess load.
15.When the push button is pressed, the machine will stop.
Periodic Inspection
To maintain continuous and satisfactory operation ,a regular inspection procedure
must be initiated so that worn or damaged parts can be replaced before they
become unsafe, the intervals of inspection must be determined by the individual
application and are based upon the type of service to which the hoist will be
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subjected.
Periodic inspections are to be performed semi-annually and the should include the
following:
1.extemal evidence of loose screws.
2.extermal evidence of worn , corroded, cracked or distorted hook fixing block,
gears, bearings, chain stop ball and hook retainer.
3.extemal evidence of damage or excessive wear of the lift-wheel. Widening and
deepening of pockets may cause chain to lift-up in the pockets and cause binding
between lift-wheel and chain guide or between lower sheave and hook block.
Check chain guide for wear or burring where the chain enters the hoist .severely
worn or damaged parts should be replaced.
4.external evidence of excessive wearing of brake parts. Check the control station
push buttons to make sure they operate freely and spring back when released.
5.check power cord, control cord and control ststion for damaged insulation.
6.check the chain pin or dead end pin and chain stop for wear and cracks. Any
deficiencies noted must be corrected before the hoist is returned to service.
Hook inspection
Hook damaged for chemicals, deformations or cracks or than have more than a
10°，twist from the plane of the unbent hook or excessive throat opening indicates
abuse or overloading of the unit.
Check to make sure that the latch is not damaged or bent and that it operates
properly with sufficient spring pressure to keep the latch tightly against the lip of
the hook and allow the latch to spring back to the tip when released. If the latch
does not operate properly, it should be replaced.
Chain inspection.
Nicks, gouges, twisted links , weld spatter,
corrosion pits, striations, cracks in weld
areas, wear and stretching. Chain with any
one of these defects must be replaced.
Lubricate the chain using
3#calcium-based grease after 200 per
cycles. Life of chain is 50000cycles.
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Slack the portion of the chain that normally passed over the lift-wheel. examine the
interlink area for the point of maximum wear. Measure and record the stock
diameter at this point of the link. Then
measure stock diameter in the same
area on a link that does not pass over
the lift wheel (use the link adjacent to
the loose end link for this purpose).
Compare these two measurements. If
the stock diameter of
the worn link is
0.254 mm(or more).
Less than the stock diameter of the
unworn link, the chain must be replaced.
The chain length is 3 meter and it has 157 Knots.FIG 2.2 is specific dimensions of
the chain.
Lubrication
The gears are packed at assembly with grease and should not need to be
renewed unless the gears have been removed from the housing and degreased.
Bearing.
Rotor bearing are pre-lubricated and require no lubrication. Needle bearings are
packed at assembly with grease and should not to be relubricated. However, if the
housings, lift-wheel or sheave wheel have been degreased, these bearing should
be greased using lithium grease.
Load Chain Removal/Installation(FIG3& FIG4 &FIG5).
1. Remove the chain bag(FIG 3)
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2. Remove the hook lock(FIG 4). Depress “up” button and run chain out of the
hoist.
3. Jog the “down” push button while pulling on the new chain until the old chain
comes out of the hoist.
4. Attach the hook block to the new chain.
5. Remove the chain stop ball from the old chain(FIG 5)
and attach it to the new
chain by reusing the chain pin.
Hook for pulley installation/ removal( FIG 6)
1. 2 holes of hook for pulley aligned with the holes of electrical chain hoist.
2.Firmly secure the hook for pulley and electrical. Using 2 flat round head rivets、2
plain washes and 2 split pins.
3.Installation in the reverse order to removal hook for pulley.
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www.vevor.com/support
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