Yale 4H42 User manual

LS Open Loop Vector Motor 4H42, 4H71, 4H72
Manual Supplement
Part Number: za-o.2.8.41-us-1.1
August 2022
© 2022 Columbus McKinnon Corporation

LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 3
za-o.2.8.41-us-1.1
Contents
1General notes ...........................................................................................................................................................................................................4
1.1 Using these instructions ........................................................................................................................................................................................4
1.2 Copyright notice ......................................................................................................................................................................................................4
1.3 Warranty ....................................................................................................................................................................................................................4
1.4 Target audience and responsibilities ..................................................................................................................................................................5
1.5 Manufacturer ............................................................................................................................................................................................................5
2Safety-related information .....................................................................................................................................................................................6
2.1 Layout of the warning messages .........................................................................................................................................................................6
2.1.1 Section warning messages.............................................................................................6
2.1.2 Embedded warning messages.......................................................................................6
2.1.3 Signal words .................................................................................................................... 6
2.1.4 Safety alert symbols ........................................................................................................6
2.1.5 Mandatory action signs ...................................................................................................7
2.2 Further symbols.......................................................................................................................................................................................................7
2.3 Safety notes..............................................................................................................................................................................................................8
2.3.1 Intended use ....................................................................................................................8
2.3.2 Prohibited use..................................................................................................................9
2.3.3 User obligations ...............................................................................................................9
2.3.4 Personal protective equipment.....................................................................................10
2.3.5 Changes and modifications ..........................................................................................11
2.3.6 Mounting accessories and spare parts........................................................................11
2.3.7 Transport and storage...................................................................................................12
2.3.8 Decommissioning ..........................................................................................................12
2.3.9 Disposal..........................................................................................................................12
3Product overview...................................................................................................................................................................................................13
3.1 Standards and directives .....................................................................................................................................................................................13
3.2 Design overview ....................................................................................................................................................................................................13
3.2.1 Rating plate....................................................................................................................13
4Troubleshooting ....................................................................................................................................................................................................14
5Inspection and maintenance ...............................................................................................................................................................................15
5.1 Inspection and maintenance intervals ..............................................................................................................................................................16
5.2 Check the insulation resistance .........................................................................................................................................................................17
5.3 Checking the hoist motor brake .........................................................................................................................................................................18
5.4 Replacing the brake rotor ....................................................................................................................................................................................19
5.4.1 Conditioning of the friction pairing ................................................................................21
5.5 Replacing the pressure springs .........................................................................................................................................................................22
5.6 Replacing the hub .................................................................................................................................................................................................23
5.7 Remove the cover and fan ...................................................................................................................................................................................24
6Special tools and auxiliary equipment ..............................................................................................................................................................25
6.1 Feeler gauge ...........................................................................................................................................................................................................25
7Technical data ........................................................................................................................................................................................................26
7.1 Nominal motor data...............................................................................................................................................................................................26
7.1.1 Frequency-controlled hoist motors 4H..-LS 120 Hz....................................................26
7.2 Main fuses...............................................................................................................................................................................................................27
7.3 Cable cross-sections and cable lengths...........................................................................................................................................................27
8Tightening torques for bolted connections......................................................................................................................................................28
9Spare parts..............................................................................................................................................................................................................29
9.1 4H42-LS100L ..........................................................................................................................................................................................................30
9.2 4H71-LS112M..........................................................................................................................................................................................................32
9.3 4H72-LS132M..........................................................................................................................................................................................................34

1 General notes
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 4
za-o.2.8.41-us-1.1
1General notes
1.1 Using these instructions
These instructions are part of the product and contain important information on proper
and safe testing, troubleshooting and maintenance. The listed information, safety notes
and warning messages, as well as required actions, must be observed. The user must
ensure that all people who work on or with the product have fully read and understood
these instructions.
The additional information in the enclosed technical documentation must be observed.
These instructions and all further applicable documents must be kept to hand and acces-
sible at all times for later use.
1.2 Copyright notice
The contents of these instructions must be treated as confidential and are intended exclu-
sively for personnel working with the product. It is impermissible to pass these instructions
on to third parties without the written consent of the manufacturer.
The information, texts, drawings, figures and other representations contained within them
are copyright protected and subject to industrial property rights.
It is prohibited to produce any form of duplicate copy, including excerpts, and to exploit
and/or disclose the contents without the written consent of the manufacturer. Infringe-
ments will be subject to compensation for damages. Further rights reserved.
Copyright © 2022 Columbus McKinnon Corporation
1.3 Warranty
These instructions were compiled in accordance with the applicable regulations, are
state-of-the-art and based on our many years of knowledge and experience.
The manufacturer accepts no liability for damage in the following cases:
●Failure to follow these instructions and the accompanying further technical documen-
tation
●Prohibited uses of the product
●Use of untrained personnel
●A failure to follow the inspection and maintenance specifications
●Impermissible changes or modifications
●Use of impermissible mounting accessories and impermissible spare parts
The obligations agreed in the delivery contract, the General Terms and Conditions and
the terms of delivery of the manufacturer apply, as well as the legal provisions valid at the
time of contractual agreement.

1 General notes
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 5
za-o.2.8.41-us-1.1
1.4 Target audience and responsibilities
These instructions are intended for users, qualified specialist personnel and persons who
are competent.
People under the influence of drugs, alcohol or medication that could impair reaction
times are not permitted to work on or with the product.
User
The user is anyone who operates the product and uses it, or who allows suitable and in-
structed personnel to operate it.
Qualified specialist personnel
The product must be operated exclusively by qualified specialist personnel. Persons who
work on or with the product must have read and understood these instructions before
commencing the work.
Competent person
A competent person is anyone who, due to their professional training, professional experi-
ence and recent professional activity, possesses the requisite skills and expertise to test
equipment. Competent persons with the authority to undertake work on our products are
service technicians of the manufacturer and trained, certified service technicians.
Competent person authorised to test cranes
A competent person qualified to test cranes is a person who, as a result of their profes-
sional training, professional experience and recent professional activity has the required
specialist knowledge for handling and using cranes and is permitted to release cranes or
hoists for operation on the basis of national and local regulations.
1.5 Manufacturer
Columbus McKinnon Corporation
205 Crosspoint Parkway
Getzville, NY 14068
United States
www.columbusmckinnon.com
[phone]

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 6
za-o.2.8.41-us-1.1
2Safety-related information
2.1 Layout of the warning messages
2.1.1 Section warning messages
Section warning messages relate to an entire chapter or a section and are structured as
follows.
SIGNAL WORD
Type and source of danger
Possible consequences if disregarded

Measures to prevent the danger
2.1.2 Embedded warning messages
Embedded warning messages are placed directly before or after a required action and
are structured as follows.
SIGNAL WORD Type and source of danger, possible consequences if disregarded.
Measures to prevent the danger.
2.1.3 Signal words
The following signal words are used in warning messages.
Signal word
Meaning
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE
Indicates possible material or environmental damage.
2.1.4 Safety alert symbols
Symbol
Meaning
General hazard
Risk of electric shock
Danger due to falling parts
Hanging load hazard
Danger of crushing

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 7
za-o.2.8.41-us-1.1
2.1.5 Mandatory action signs
Symbol
Meaning
General mandatory action sign
Information in the enclosed technical documentation must be
observed.
Work must be carried out by a competent person
Work must be carried out by a competent person (qualified
electrician)
Bolted connections must be tightened to the prescribed tightening
torques
2.2 Further symbols
Symbol
Meaning
Important note
Required action
1.
2. Required actions must be performed in the indicated order
→Result of a required action
●List
– List (2nd level)

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 8
za-o.2.8.41-us-1.1
2.3 Safety notes
All products from Columbus McKinnon are constructed in accordance with state-of-the-art
engineering and the recognised safety rules. However, during use danger to the life and
limb of the user or a third party can arise, or adverse effects can affect the p
roduct and
other property.
Observe the following:
●The permissible environmental conditions must be observed.
●The work performed must be carried out by authorised personnel only.
●The information in the enclosed technical documentation must be observed.
●The product must only be operated in a satisfactory condition.
●The national and local safety and accident prevention regulations, the occupational
safety acts and environmental provisions must be observed.
●All damage and defects on the product must be reported to the supervisor responsi-
ble immediately. The product must not be used until the defects have been remedied.
●Signs, labels, or pictograms that are applied to the product must be observed and
must not be removed.
●Damaged signs, labels or pictograms must be replaced by new signs, labels or picto-
grams.
2.3.1 Intended use
The product may only be used for the intended application in accordance with the tech-
nical documentation and the information on the rating plate, and any additional stickers
present. Intended use also includes proper assembly, electrical installation and mainte-
nance.
For products that are declared as partly completed machinery, commissioning is forbid-
den until it is determined that the machinery into which this product is installed complies
with the provisions of the EC Directives or other national and local regulations.

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 9
za-o.2.8.41-us-1.1
2.3.2 Prohibited use
The user, and not the manufacturer, is liable for all personal injury and material damage
that arises due to prohibited use. Liability on the part of the manufacturer is excluded in
this case.
Prohibited uses are:
●A failure to follow the specifications and notes provided in these instructions.
●A failure to follow information on the rating plate, the additional stickers and warning
signs that are applied to the product.
●Use of the product in applications for which it is not intended.
●Impermissible changes and modifications.
●Operation in a damaged condition.
●Improperly performed repairs.
2.3.3 User obligations
The user must ensure the following:
●Personnel are qualified and trained regularly.
●All persons who work on or with the product have read and understood the
associated instructions.
●Planning, assembly and electrical installation are performed correctly.
●A test is carried out prior to commissioning.
●The satisfactory condition of the product is maintained through maintenance
measures.
●In the event of defects relevant to safety, operation is discontinued immediately.
●Only spare parts that are approved by the manufacturer are used.
●Personnel are provided with the prescribed personal protective equipment.

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 10
za-o.2.8.41-us-1.1
2.3.4 Personal protective equipment
Personal protective equipment must be worn at all times during activities that can cause
injuries or endanger health.
To be worn at all times
Work protective clothing
Work clothes with low tear resistance, with narrow sleeves and no
protruding parts, to protect against being caught by moving machine
parts. Do not wear rings, chains or other jewellery.
Safety shoes
For protection against heavy falling parts and slipping on slippery
surfaces.
Wear in unusual environmental conditions
Safety eyewear
To protect the eyes from any stray flying parts and splashes of liquid.
Hearing protection
To protect against hearing damage.
Safety helmet
For protection from falling parts.
Safety gloves (only if there is no entanglement hazard)
To protect hands from friction, abrasions, punctures or deep injuries as
well as from contact with hot surfaces.
Safety harness
It is necessary to provide work rigs or lifting platforms for any
maintenance and repair work that cannot be carried out from floor level.
Service technicians who work outside lifting platforms must be safe-
guarded with a safety harness.

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 11
za-o.2.8.41-us-1.1
2.3.5 Changes and modifications
Only carry out changes and modifications to the product with written approval from the
manufacturer.
2.3.6 Mounting accessories and spare parts
Impermissible mounting accessories and inadmissible spare parts may impair safety.
Only use original mounting accessories and original spare parts from the manufacturer.

2 Safety-related information
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 12
za-o.2.8.41-us-1.1
2.3.7 Transport and storage
Inspect the delivery immediately upon receipt for completeness and any transport
damage. Report any transport damage to the transport company immediately.
The product must be stored as follows until assembly:
Store in a dry, dust-free environment.
Do not expose to aggressive media.
Store within the approved service temperature range.
Protect from direct sunlight.
Avoid mechanical vibrations.
Observe additional information on the product or packaging.
2.3.8 Decommissioning
1. Disconnect the product from the power supply.
2. Dismount the product in reverse order to assembly.
2.3.9 Disposal
Following correct disassembly, the disassembled components of the product must be
submitted for recycling in accordance with the locally applicable regulations.
●Metallic parts for scrap metal
●Electronic components for electrical/electronic scrap
●Plastic parts for recycling
Electronic components, lubricants and other auxiliary substances are subject to special
waste treatment and shall only be disposed of by approved specialist companies.

3 Product overview
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 13
za-o.2.8.41-us-1.1
3Product overview
3.1 Standards and directives
The conformity to the standards and directives can be found in the accompanying
technical documentation.
3.2 Design overview
(1)
Motor
(2)
Terminal box
(3)
Hoist motor brake
(4)
Fan
3.2.1 Rating plate
(1)
Type
(2)
Serial number
(3)
Weight
(4)
Degree of protection
(5)
Current at rated voltage
(6)
Power
(7)
Speed
(8)
Frequency
(9)
Bearing type (drive end)
(10)
Bearing type (non-drive end)
(11)
Rated voltage and winding circuit
(12)
Hoist motor brake data
(13)
Motor type
(14)
Part number
If the motor is operated at a lower power (other gear mechanism group) or in an operating
mode specially adapted to the environmental conditions, these values can be found in the
following tables or in the special documentation.
These special conditions of use can be:
●Higher ambient temperatures (here the temperature on the hoisting mechanism rating
plate is decisive)
1234
b_1857a
1
8 7 6
9
10
11
12 13 14
b_1858a
2
3
4
5

4 Troubleshooting
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 14
za-o.2.8.41-us-1.1
4Troubleshooting
Fault
Possible cause
Measure
see the chapter/section
Wire rope hoist does not start,
motor hums
Not all current phases are
available
Check the fuses
Check supply line
Testing control and switching
devices
Wire rope hoist does not start
after prolonged downtime or
starts with difficulty, motor hums
Hoist motor brake is stuck.
Check the hoist motor brake. Checking the hoist motor brake.
Loud “clack” noise when
switching on
Air gap too great.

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 15
za-o.2.8.41-us-1.1
5Inspection and maintenance
WARNING
Danger to life, injury or material damage due to improper inspection or maintenance.

Ensure that people who perform inspection and maintenance are authorised to carry
out this work.

Observe the national and local safety and accident prevention regulations, the occu-
pational safety acts and environmental provisions.

Before starting work, disconnect the machinery from the power supply and secure it
against an unintentional restart.

Work on the motor must only be carried out on the unloaded wire rope hoist and with
the bottom hook block lowered.

Use a lifting platform for work that cannot be carried out from the ground. Use a
safety harness when performing any work outside of lifting platforms.

Wear the prescribed personal protective equipment.

Secure the danger zone.

Observe inspection and maintenance intervals.

Document the results and any measures implemented.

Keep a sufficient safety distance from the product.

Do not stand under suspended loads.

Use only original spare parts from the manufacturer.

Tighten bolted connections to the prescribed tightening torques with a torque wrench.

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 16
za-o.2.8.41-us-1.1
5.1 Inspection and maintenance intervals
The inspection and maintenance intervals listed apply to normal conditions. If the inter-
vals are found to be too long, for example due to heavy-duty operating conditions, the
user must define shorter intervals.
Additional inspections must be carried out on the product in the following cases:
●After special incidents or material damage
●After an extended system standstill (> 1 year)
●When used near the sea
Authorised person
Symbol
Qualified specialist personnel (crane operators)

Competent person

Service technician of the manufacturer

Commissioning
Daily before every operation
Monthly
Every 3 months
Annually
After an extended system standstill (> 1 year)
Every 10 years
Technical documentation
Perform a visual inspection for completeness

Plates and stickers
Perform a visual inspection for completeness and legibility


Hoist motor
Perform a visual inspection for damage
 
Perform a functional test of the hoist motor
●
No speed fluctuations,
●No high noise emissions
●No strong vibrations
Electrical connection
Check for correct connection of the lines and the power supply


Check the insulation resistance of the motor (see the Check the insulation resistance section)

Hoist motor brake
Check function



Check for wear (see Checking the hoist motor brake section)


5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 17
za-o.2.8.41-us-1.1
5.2 Check the insulation resistance
A check of the insulation resistance after a longer standstill or storage of the system
(> 1 year)! This must be carried out at a winding temperature of +20...+30°C.
Before starting the measurement of the insulation resistance, observe the operating
instructions of the insulation meter used.
1. Carry out the insulation resistance measurement. The measured voltage is 500 V DC.
–Minimum insulation resistance for new, cleaned or repaired windings at a refer-
ence temperature of +40°C must be 5 MΩ.
–The critical specific insulation resistance after long operation time is: 0.5 MΩ/kV.
2. When reaching or falling below the critical insulation resistance.
Remove the rotor and thoroughly clean and dry the windings of the rotor.
Then carry out another check.

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 18
za-o.2.8.41-us-1.1
5.3 Checking the hoist motor brake
WARNING
Danger to life, injury or material damage due to improper inspection of the hoist motor
brake.

Work on the hoist motor brake must only be carried out on the unloaded wire rope
hoist and with the bottom hook block lowered.

Switch off the crane-supply-switch and secure against being switched on again.

Secure the danger zone.

Keep a sufficient safety distance from the product.
(4)
Sealing ring
(5)
Fastening screws
(6)
Stopping plug
(7)
Hub
(8)
Brake rotor
(9)
Anchor plate
(10)
Coil carrier
1. Remove the cover and fan.
2. Remove stopping plug (6) with pliers.
3. Measure the air gap “S” with a feeler gauge “b”.
–When measuring, the feeler gauge “b” must be inserted at least to the insertion
depth “a” (see table). The feeler gauge must not get caught on the step. Refer to
the table for the maximum permissible air gap “S”.
Hoist motor type
Hoist motor brake
Max. air gap “S”
Insertion depth “a”
[mm]
4H42-LS
RSM 16
0.4
25
4H71-LS
RSM 32
0.45
25
4H72-LS
RSM 60
0.8
25
The hoist motor brake is not readjustable. Once the max. permissible air gap “S” has
been reached, the brake rotor (10) must be replaced.

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
June 2022
Page 19
za-o.2.8.41-us-1.1
5.4 Replacing the brake rotor
CAUTION
Brake dust is hazardous to health.

Do not clean hoist motor brakes with compressed air, brushes or similar.

Use a vacuum system or a damp cloth to remove brake dust.

If dust develops, wear safety eyewear and a fine dusk mask.
WARNING
With an incorrectly assembled brake rotor, the hoist motor brake cannot hold the load and
the load will fall. This can result in serious injuries and even death.

Ensure that a competent person carries out the replacement work.
The pressure springs of the hoist motor brake must always be replaced at the same time.
(4)
Sealing ring
(5)
Fastening screws
(6)
Stopping plug
(7)
Hub
(8)
Brake rotor
(9)
Anchor plate
(10)
Coil carrier
1. Remove the cover and fan.
2. Remove the sealing ring (4) (IP66).
3. Dismount electrical connection of the hoist motor brake.
4. Unscrew the fastening screws (5).
5. Remove coil carrier (10).
6. Take off brake rotor (10).
NOTICE When dampening the cloths, only use isopropyl alcohol. The use of brake
cleaner is not permitted.
Ensure sufficient drying time for the cleaned surfaces.

5 Inspection and maintenance
LS Open Loop Vector Motor 4H42, 4H71, 4H72 Manual Supplement
za-o.2.8.41-us-1.1
August 2022
Page 20
za-o.2.8.41-us-1.1
We cannot recommend cleaning the rotor / friction linings because oil / grease has usually
worked into the lining and this can only be removed from the surface area to a limited
degree.
Furthermore, it is not possible to fully exclude negative reactions b
etween the cleaning
products and the lining. We therefore recommend use of the spare parts kit here.
7. Check friction surfaces for wear and clean with a damp cloth.
8. Slide a new brake rotor (8) onto the hub (7) and check the available clearance.
NOTICE Danger of damage
→If increased clearance is present in the gearing between the brake rotor (8) and
hub (7), remove the hub (7) from the motor shaft and replace it. Be sure to consult
the production factory before removing the hub (7).
9. Replace the hoist motor brake pressure springs (see Replacing the pressure
springs section).
10. Check the O-ring of the coil carrier for damage and replace if necessary.
11. Clean coil carrier.
12. Assemble in reverse order (work steps 6 to 1).
→Make sure that the inspection hole for the air gap measurement is at the bottom.
→Tighten the fastening screws (5) to the prescribed tightening torque, see table.
→After tightening the fastening screws (5), mark the fastening screws (5).
Hoist motor brake type
Fastening screw (5) tightening torque
[Nm]
RSM 16
9.0
RSM 32
RSM 60
22.0
13. After completing the assembly work, check the hoist motor brake and carry out a
conditioning of the friction pairing, see Conditioning of the friction pairing section.