R&M LOADMATE LM Series Manual

This document and the information contained herein, is the exclusive property of R&M Materials Handling, Inc., and represents a non-public, confidential and proprietary trade secret that
may not be reproduced, disclosed to third parties, altered or otherwise employed in any manner whatsoever without the express written consent of R&M Materials Handling, Inc.
Copyright © (2010) R&M Materials Handling, Inc. All rights reserved.
INSTALLATION AND
MAINTENANCE MANUAL
LM CHAIN HOIST
LOADMATE
®
LM1
English
STD-R-KHA-F-CQD-ENG

LM01 I&M MANUAL/EN/11.30.2010
2/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
THIS PAGE INTENTIONALLY LEFT BLANK

LM01 I&M MANUAL/EN/11.30.2010
3/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
mCAUTION: Read the instructions supplied with the product before installation and
commissioning.
mCAUTION: Keep the instructions in a safe place for future reference.
Table of contents
1 INTRODUCTION ........................................................................................................................................ 5
1.1 Contact Information ........................................................................................................................... 5
1.2 Warranty ............................................................................................................................................ 5
1.3 Disclaimer .......................................................................................................................................... 5
1.4 Safety................................................................................................................................................. 6
1.5 Placards and Instructions .................................................................................................................. 8
2 INSTALLATION ......................................................................................................................................... 9
2.1 General .............................................................................................................................................. 9
2.2 Lubrication ......................................................................................................................................... 9
2.3 Mounting .......................................................................................................................................... 10
2.4 Load Hook Throat Opening ............................................................................................................. 10
2.5 Electrical Connection ....................................................................................................................... 11
2.6 Three Phase Power Connections .................................................................................................... 12
2.7 Single Phase Power Connections ................................................................................................... 13
3 INITIAL START-UP.................................................................................................................................. 14
3.1 General ............................................................................................................................................ 14
3.2 Correcting the Direction of Hook Travel .......................................................................................... 14
3.3 Operational Checks – No Load ....................................................................................................... 15
3.4 Operational Checks – With Load ..................................................................................................... 15
4 HOIST OPERATION ................................................................................................................................ 16
5 MAINTENANCE ....................................................................................................................................... 17
5.1 Basic Hoist Construction.................................................................................................................. 17
5.2 Motor / Body..................................................................................................................................... 17
5.3 Hoist Motor Brake and Load-Limiting Device .................................................................................. 18
5.3.1 Slip Clutch Operation (See Figure 5)........................................................................................... 18
5.3.2 Slip Clutch Adjustment after Installation ...................................................................................... 20
5.3.3 Hoist Motor Brake Adjustment (See Figure 5)............................................................................. 21
5.3.4 Replacement Criteria for Motor Brakes ....................................................................................... 22
5.4 Load Chain....................................................................................................................................... 23
5.4.1 General ........................................................................................................................................ 23
5.4.2 Maintenance Inspection............................................................................................................... 23
5.4.3 Load Chain Specifications (see Figure 6).................................................................................... 25
5.4.4 Removing the Load Chain ........................................................................................................... 25
5.4.5 Installing the Load Chain ............................................................................................................. 26
5.5 Fall Stop Assembly .......................................................................................................................... 28
5.5.1 General ........................................................................................................................................ 28
5.5.2 Fall Stop Installation .................................................................................................................... 28
5.6 Chain Container............................................................................................................................... 29
5.7 Limit Switches.................................................................................................................................. 30
5.7.1 Upper and Lower Travel Safety Limit Switch............................................................................... 30
5.7.2 Upper and Lower Rotary Travel Limit Switch (Optional Only on 3-Phase units)......................... 31
5.8 Hooks............................................................................................................................................... 32
5.8.1 General ........................................................................................................................................ 32
5.8.2 Inspection..................................................................................................................................... 33
5.8.3 Hook Dimensions and Specifications .......................................................................................... 33
5.8.4 Top Hook ..................................................................................................................................... 34
5.9 Controls............................................................................................................................................ 35
5.9.1 General ........................................................................................................................................ 35

LM01 I&M MANUAL/EN/11.30.2010
4/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
5.9.2 Control Fuses............................................................................................................................... 35
5.10 Control Panel Layout – Three Phase – Two Speed ........................................................................ 36
5.11 Control Panel Layout – Single Phase – Single Speed – 115 Volt ................................................... 37
5.12 Wiring Diagrams .............................................................................................................................. 38
5.12.1 Wiring Diagram – Three Phase – Two-speed Hoist ................................................................ 38
5.12.2 Wiring Diagram – Single Phase – Connections and Components .......................................... 39
5.12.3 Wiring Diagram – Single Phase – Power Circuit ..................................................................... 40
5.12.4 Wiring Diagram – Single Phase – Control Circuit.................................................................... 41
5.12.5 Wiring Diagram – 3 Button – Push Button............................................................................... 42
5.12.6 Wiring Diagram – 5 Button – Push Button............................................................................... 43
5.12.7 Wiring Diagram – 7 Button – Push Button............................................................................... 44
6 PREVENTATIVE MAINTENANCE .......................................................................................................... 45
6.1 Maintenance and Inspection Table.................................................................................................. 45
6.2 Lubrication ....................................................................................................................................... 46
6.3 Recommended Technical Support for Various Spare Parts............................................................ 47
6.4 Screw Tightening Torque (lb-ft) Specifications................................................................................ 47
6.5 Troubleshooting ............................................................................................................................... 48
7 PARTS ILLUSTRATION .......................................................................................................................... 50
7.1 Hoist Body........................................................................................................................................ 50
7.2 Helical Gear Mechanism & Brake.................................................................................................... 52
7.3 Lifting Assembly............................................................................................................................... 54
7.4 Control Panel Assembly – 3 Phase Power Supply.......................................................................... 56
7.5 Control Panel Assembly – 115 Volt 1-Phase Power Supply ........................................................... 57
7.6 Gear Limit Switch (OPTION) ........................................................................................................... 58
7.7 Push Button Assembly – Horizontal Pairs of Buttons...................................................................... 59
7.8 Push Button Assembly – Horizontal Pairs of Buttons...................................................................... 60
7.9 Push Button Assembly – Vertical Pairs of Buttons (Option)............................................................ 62
7.10 Push Button Assembly – Vertical Buttons (Option) ......................................................................... 64

LM01 I&M MANUAL/EN/11.30.2010
5/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
1 INTRODUCTION
1.1 Contact Information
Please do not hesitate to use the following contact information in the event that you may need assistance:
R&M MATERIALS HANDLING, INC.
4501 Gateway Boulevard
Springfield, OH 45502
General Telephone: 937 - 328-5100
Toll Free Telephone (US): 800 - 955-9967
General Fax: 937 - 325-5319
Parts Department Fax (US): 800 - 955-5162
Parts Dept. Fax (other): 937 - 328-5162
Website: www.rmhoist.com
1.2 Warranty
All sales are subject to the R&M Materials Handling, Inc. Standard Terms and Conditions of Sale (Revision
101707), a copy of which is available at www.rmhoist.com or upon request from R&M Materials Handling,
Inc. customer service/sales representatives and the terms of which are incorporated as if fully rewritten
herein.
1.3 Disclaimer
This Manual has been prepared by R&M MATERIALS HANDLING, INC. to provide information and
suggestions for hoist installation, maintenance, and inspection personnel. This manual should be used in
conjunction with the LoadMate® Electric Chain Hoist Operator’s Manual to teach safe operating practices
to all personnel associated with hoist operations and maintenance.
It is NOT intended that the recommendations in this manual take precedence over existing plant safety rules
and regulations or OSHA regulations. However, a thorough study of the following information should provide
a better understanding of proper installation, maintenance, and inspection procedures that are to be followed
in order to afford a greater margin of safety for people and machinery in the area of hoist operations.
It must be recognized that this is a manual of recommendations for the Hoist Installation, Maintenance, and
Inspection personnel and its use is permissive not mandatory. It is the responsibility of the hoist owner to
make personnel aware of all federal, state, and local codes and regulations. The owner is responsible for
providing instruction and ensuring that certain installation, maintenance, and inspection personnel are
properly trained.

LM01 I&M MANUAL/EN/11.30.2010
6/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
1.4 Safety
Read and understand this manual before using the hoist.
Important issues to remember during installation, operation, maintenance, and inspection are provided at the
hoist control stations, at various locations on the hoist, in this manual, and in the LoadMate® Electric Chain
Hoist Operator’s Manual.These issues are indicated by DANGER, WARNING, or CAUTION instructions or
placards that alert personnel to potential hazards, proper operation, load limitations, and more.
m
DANGER: Indicates an imminently hazardous situation, which, if not avoided, will result in death or
serious injury.
m
WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in death or
serious injury.
m
CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Taking precedence over any specific rule, however, is the most important rule of all:
“USE COMMON SENSE”
It is a responsibility of the hoist owner / user to establish programs to:
1. Train and designate hoist operators, and
2. Train and designate hoist inspectors / maintenance personnel.

LM01 I&M MANUAL/EN/11.30.2010
7/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
The words SHALL and SHOULD are used throughout this manual in accordance with definitions in the
ASME B30 standards as follows:
SHALL indicates a rule is mandatory and must be followed.
SHOULD indicates a rule is a recommendation, the advisability of which depends on the facts
in each situation.
Hoist operation, hoist inspection, and hoist maintenance personnel training programs should be based on
requirements in accordance with the latest edition of:
ASME B30.16 Safety Standard for Overhead Hoists ( Underhung )
Such training should also provide information for compliance with any Federal, State, or Local Code
requirements, and existing plant safety rules and regulations.
If an overhead hoist is installed as part of an overhead crane or monorail system, training programs should
also include requirements in accordance with the latest editions, as applicable, of:
•ASME B30.2 Safety Standard for Overhead and Gantry Cranes, Top Running Bridge,
Single or Multiple Girder, Top Running Trolley Hoist
•ASME B30.11 Safety Standard for Monorails and Underhung Cranes
•ASME B30.17 Safety Standard for Overhead and Gantry Cranes, Top Running Bridge,
Single Girder, Underhung Hoist.

LM01 I&M MANUAL/EN/11.30.2010
8/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
NOTICE:



It is a responsibility of the owner / user to install, inspect, test, maintain, and operate a
hoist in accordance with the ASME B30.16 Safety Standard, OSHA Regulations, and ANSI
/ NFPA 70, National Electric Code. If the hoist is installed as part of a total lifting system,
it is also the responsibility of the owner / user to comply with the applicable ASME B30
volume that addresses other types of equipment used in the system.


Further, it is the responsibility of the owner / user to require that all personnel who will
install, inspect, test, maintain, and operate a hoist read the contents of this manual,
LoadMate® Electric Chain Hoist Operator’s Manual, ASME B30.16 Safety Standards for
Overhead Hoists (Underhung), OSHA Regulations, and ANSI / NFPA 70, National Electric
Code. If the hoist is installed as part of a total lifting system, all personnel must also
read the applicable ASME B30 volume that addresses other types of equipment used in
the system.
m
DANGER: Failure to read and comply with any one of the limitations noted in this manual
can result in product failure, serious bodily injury or death, and / or property damage.
R&M MATERIALS HANDLING, INC. has no direct involvement or control over the hoist’s operation and
application. Conforming to good safety practices is the responsibility of the owner, the user, and its
operating personnel.
Only those Authorized and Qualified Personnel who have shown that they have read and have understood
this manual and the LoadMate® Electric Chain Hoist Operator’s Manual should be permitted to operate
the hoist.
The owner / user SHALL ensure that all Operators read and understand the LoadMate® Electric Chain
Hoist Operator’s Manual prior to operating the hoist.
1.5 Placards and Instructions
READ and OBEY all Danger, Warning, Caution, and Operating Instructions on the hoist and in this manual
and LoadMate® Electric Chain Hoist Operator’s Manual.Make sure that all placards are in place and
legible.
Failure to comply with safety precautions in this manual and on the hoist is a safety violation that may result
in serious injury, death, or property damage.

LM01 I&M MANUAL/EN/11.30.2010
9/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
2 INSTALLATION
m
DANGER: Before installing, removing, inspection, or performing any maintenance on a
hoist, the main switch shall be de-energized. Lock and tag the main switch in the de-
energized position in accordance with ANSI Z244.1. Follow other maintenance procedures
outlined in this manual and ASME B30.16.
2.1 General
Prior to installation, the unit shall be checked thoroughly for damage during shipment or handling at the job
site.
Each complete electric chain hoist is load tested at the factory at 125% of the nameplate-rated capacity.
All hoists are designed for the type of mounting specified by the purchaser. The adequacy of the supporting
members (monorail beams, cranes, hangers, supports, framing, etc.) is the responsibility of user / owner and
shall be determined or verified by qualified personnel.
Read the instructions contained in this manual and the LoadMate® Electric Chain Hoist Operator’s
Manual as well as any other related manuals. Observe the warning tags attached to the unit before the
installation is started.
2.2 Lubrication
The hoist gear case comes completely pre-lubricated with grease.
Note: Open trolley wheel gearing has not been greased at the factory. See the trolley manual for proper
gear lubricant to use before installing hoist.
The load chain requires lubrication prior to first use. Chain lubricant is included with shipment of each new
chain hoist.

LM01 I&M MANUAL/EN/11.30.2010
10/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
2.3 Mounting
Below are three types of mounting:
1. Hook Mounted
2. Base Mounted
3. Coupling Mounted
4. Trolley Mounted – NOT SHOWN – is accomplished via a Hook or Trolley Coupling to the Trolley
Assembly.
Figure 1. Mounting Types
For all trolley-mounted hoists, refer to appropriate trolley manual for trolley installation instructions.
After a trolley-mounted hoist has been assembled to a beam, check for balance. Each trolley-mounted hoist
is balanced at the factory for “as shipped” condition. Any auxiliary devices (radio control, lights, hose reels,
etc.) furnished and mounted by “others” may require additional counterweight. Hoists must hang straight
without a load or there will be a noticeable “kick” when a load is applied to hook. An unbalanced hoist /
trolley may result in damage to equipment.
2.4 Load Hook Throat Opening
mCAUTION: ANSI B30.16-1998 recommends that the throat opening of a load hook be measured
and recorded prior to putting a hoist into service and that a gage be made to provide a quick
visual inspection for a bent hook as required during routine inspections. Record this
information before initial start-up. See Section 5.8 for more detailed hook information.

LM01 I&M MANUAL/EN/11.30.2010
11/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
2.5 Electrical Connection
The user / owner must provide the main power supply hardware (cable, conductor bar, fuses, disconnect
switch, etc.).
mCAUTION: Make sure that the power supply voltage is the same as that shown on hoist serial
plate / nameplate.
mCAUTION: Make sure that fuses and other current overload devices are in place to protect the
power supply.
mCAUTION: Make sure that power cable or conductors have sufficient capacity to maintain the
hoist supply voltage by ±5 percent of nominal voltage under all operating conditions. Poor
voltage regulation may cause motor overheating or sluggishness, and chattering / inoperative
motor brake(s) and controls.
mCAUTION: Do not use power supply cables with solid conductors.
mWARNING: Failure to properly ground the hoist presents the danger of electric shock.
mWARNING: An improper or insufficient ground connection creates an electrical shock
hazard when touching any part of the hoist or trolley.

LM01 I&M MANUAL/EN/11.30.2010
12/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
2.6 Three Phase Power Connections
Figure 2. Three Phase Control Box Power Connections
1. Remove control box cover.
2. Insert power supply cable through cable gland or assemble to (optional) plug.
3. Connect power leads L1, L2, and L3 to relay K21.
4. Connect ground wire PE (GRD) to terminal strip (2). Refer to wiring diagram.
5. Tighten terminal screws.
6. Tighten cable gland or (optional) connector to secure power cable.
7. Replace control box cover.
8. Attach pushbutton assembly to plug connection X23.

LM01 I&M MANUAL/EN/11.30.2010
13/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
2.7 Single Phase Power Connections
Figure 3. Single Phase Control Box Power Connections
1. Remove control box cover.
2. Insert power supply cable through power cable gland (Figure 3).
3. Connect power leads L1 and L2 to terminal strip (Figure 3).
4. Connect ground wire PE to terminal strip (Figure 3). Refer to wiring diagram.
5. Insure terminals are tight
6. Tighten cable gland or connector (Figure 3) to secure power cable.
7. Replace control box cover.
8. Attach pushbutton assembly to plug (Figure 3).
PE
L1
L2
POWER
CABLE
GLAND
PUSHBUTTON
PLUG

LM01 I&M MANUAL/EN/11.30.2010
14/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
3 INITIAL START-UP
m
WARNING: Before connecting power to hoist, check all “motion” buttons on pendant
control assembly to make sure that they operate freely without binding or sticking. Check
pendant cable and strain relief connection to ensure that they are not damaged.
3.1 General
Initial start-up procedures are as follows:
Read all attached WARNING tags and placards affixed to hoist.
Oil load chain generously over entire length of chain.
Make sure that load chain is not twisted. If so, untwist load chain before using.
Make sure fall stop is placed at least 6” [150 mm] from last chain link on free end.
Install chain container.
If furnished, make sure that trolley wheels have proper spacing in relation to beam flange. See
appropriate trolley manual for details.
Check direction of hook travel to make certain that it corresponds to respective control button that is
depressed. That is, does hook travel “UP” when UP BUTTON is depressed? If OK, go to section 3.3. If
not, proceed to section 3.2 for correcting direction of travel.
3.2 Correcting the Direction of Hook Travel
m
WARNING: DO NOT change control leads in pushbutton enclosure or at motor relays. DO
NOT change nameplates on pushbutton assembly. The upper/lower safety limit switch is
wired in series with “UP” control circuit as furnished from factory. Changing pushbutton
control leads or nameplates will prevent the upper safety travel limit switch from functioning
properly.
Reversing any two power leads of a three-phase AC motor will reverse the direction of rotation.
Reverse any two leads of a three-phase power at the main power source or at connections to motor.
Do not change internal wiring of hoist.
After changing two of the main power leads, recheck direction of rotation. Press “UP” button only. If
hook travel goes in “UP” direction, proceed to section 3.3. If not, redo section 3.2.

LM01 I&M MANUAL/EN/11.30.2010
15/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
3.3 Operational Checks – No Load
Check hoist motor brake function. Run empty load block up or down to check that load block does not
drift more than 1.0 inch [25mm]. If so, adjust brake as described in Section 5.3 of this manual.
Run empty load block down to check that fall stop (located on free end of load chain) makes proper
contact with upper / lower travel safety limit switch and that limit switch functions properly.
Run empty load block up to check that load block makes proper contact with upper / lower travel safety
limit switch and that limit switch functions properly.
Run empty load block up and down several times while checking for proper tracking of load chain.
3.4 Operational Checks – With Load
After completion of no-load operational tests, the user /owner should perform a full load test even though
each complete hoist is load tested at factory.
Lift a near capacity load about one (1) foot [30cm] above floor level. Check that the brake holds load.
Also, check stopping capability of brake when lifting to a stop and lowering to a stop.
Move trolley the full length of monorail or crane beam. Check for any binding of trolley wheels on flange
and/or interference at splice joints, hanger connections / bolts, etc.
Check contact with stops. Contact with stops SHALL only be made with trolley bumpers. Stops that are
designed to make contact with wheels SHALL NOT be used.

LM01 I&M MANUAL/EN/11.30.2010
16/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
4 HOIST OPERATION
m
WARNING: BEFORE PROCEEDING WITH THE NORMAL OPERATION OF THIS HOIST, THE
OPERATOR/(S) SHALL BE TRAINED IN ACCORDANCE WITH THE LoadMate® Electric Chain
Hoist Operator’s Manual AS SUPPLIED WITH THIS HOIST.
mWARNING: FAILURE TO READ AND COMPLY WITH ANY ONE OF THE LIMITATIONS NOTED
IN THIS MANUAL AND THE LoadMate® Electric Chain Hoist Operator’s Manual FURNISHED
WITH THIS HOIST CAN RESULT IN PRODUCT FAILURE, SERIOUS BODILY INJURY OR
DEATH, AND / OR PROPERTY DAMAGE.
mWARNING: REFER TO SECTION 1 OF THIS MANUAL FOR CONTACT INFORMATION IF
ADDITIONAL ASSISTANCE IS NEEDED.

LM01 I&M MANUAL/EN/11.30.2010
17/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
5 MAINTENANCE
5.1 Basic Hoist Construction
Figure 4. Basic Hoist Components
1. LOAD BLOCK ASSEMBLY (2-FALL SHOWN)
2. LOAD CHAIN
3. ELECTRICAL CONTROL ENCLOSURE
4. TOP HOOK
5. HOIST GEAR BOX ASSEMBLY
6. CHAIN CONTAINER & HARDWARE
7. HOIST BODY / MOTOR
8. LOAD HOOK SAFETY LATCH
9. CLIP (ONE EACH END)
10. PIN
5.2 Motor / Body
The hoist motors are designed to provide dependable hoisting service. The standard motors are enclosed
for IP55 rated protection against normal hazards of dust and moisture. The motor bearings are sealed and
do not require further greasing.
The hoist body is constructed of aluminum and requires no maintenance. Remove from service and replace
the hoist body if damaged.

LM01 I&M MANUAL/EN/11.30.2010
18/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
5.3 Hoist Motor Brake and Load-Limiting Device
The hoisting motor is equipped with a D.C. electromagnetic disc brake. The brake brings the load to a
smooth and quick stop and holds the load when the motor is not energized. An energized coil releases the
hoist brake to allow the hoisting motor to run freely when in use.
The load-limiting device is a slip clutch and it is integrated into the design of the hoist motor brake. Even if
the clutch slips, once power is removed, the brake will engage to stop and hold the load.
5.3.1 Slip Clutch Operation (See Figure 5)
When the motor brake is energized, ITEM 1 pulls ITEM 2 away from ITEM 3. ITEM 3 is free to rotate. ITEM
10 applies pressure to ITEM 3 that forces ITEM 3 to engage ITEM 4. The face-to-face contact between
ITEMS 3 & 4 creates an adjustable slip clutch between the motor and the load chain sprocket.
As ITEM 9 is tightened, ITEM 10 applies more pressure on the interface between ITEMS 3 & 4. More
pressure increases the load capacity of the hoist and less pressure decreases the capacity of the hoist.
ITEM 9 is adjusted to allow the hoist to lift 110 – 125 percent of the rated capacity of the hoist.
In the event that the slip clutch begins to slip during the lifting or lowering process, release the hoist motion
control button to stop the motor. This will de-energize the brake. ITEM 2 will now press against ITEMS 3 &
4 to stop rotation and slippage between ITEMS 3 & 4. This will stop and hold the load. Re-adjustment of
ITEM 9 will be necessary to eliminate slipping. See section 5.3.2.

LM01 I&M MANUAL/EN/11.30.2010
19/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.
Figure 5. Cross Section of Hoist Brake / Slip Clutch
5
1
23
4
6
7
8
9
10
11
12
P01017
X
Table 1. Hoist Brake / Slip Clutch Parts List
ITEM DESCRIPTION
1 ELECTROMAGNETIC COIL
2 BRAKE LINING PLATE
3 BRAKE AND SLIP CLUTCH DISC
4 SLIP CLUTCH LINING DISC
5 SCREWS
6 SLEEVE
7 ELASTIC WASHERS
8 MOTOR SHAFT
9 ADJUSTING NUT
10 SPRING
11 GEAR COVER
12 BEARING


NOTE: Item ‘X’ (air gap) is discussed in section 5.3.3 Hoist Motor Brake Adjustment.

LM01 I&M MANUAL/EN/11.30.2010
20/65
This document and the information contained herein, is the exclusive property of R&M MATERIALS HANDLING, INC. and represents a non-public, confidential and proprietary trade secret
that may not be reproduced, disclosed to third parties, altered or otherwise emplo
yed in any manner whatsoever without the express written consent of R&M MATERIALS HANDLING, INC.
Copyright © (2010) R&M MATERIALS HANDLING, INC. All rights reserved.



SEE Figure 5
mCAUTION: Make sure the motor is not running before placing tool on the nut to adjust it.
Do not touch any moving components.
mCAUTION: The slip-clutch generates heat when slipping. ITEMS 3 & 4 absorb this heat.
When these items become too hot, clutch adjustment may be difficult due to unstable
behavior of friction surfaces. If this happens, allow brake & clutch assembly to cool before
trying to re-adjust slip-clutch.
mCAUTION: Decreasing torque too much when adjusting slip-clutch will allow a suspended
load to free-fall when trying to lift. If this occurs, release the motion button and the brake
will engage to stop and hold the load.
5.3.2 Slip Clutch Adjustment after Installation
1. Hook a load of at least 110 percent but not more than 125 percent of nameplate capacity.
2. Remove plastic cap from inspection hole in brake cover.
3. Raise load at slow speed and fast speed to test slip clutch operation.
4. Use a wrench to turn the adjusting nut (item 9 - Figure 5) in the required direction.
5. Turn nut in required direction:
Turn nut clockwise to increase the torque.
Turn nut counterclockwise to decrease the torque.
6. Repeat steps 3 and 4 until load can be barely lifted in fast speed. The slip clutch is now adjusted.
CAUTION: DO NOT OVERHEAT. If overheated, clutch may not adjust due to instability of friction
surfaces.
7. Once adjustment is completed, install plastic cap.
8. Check function of clutch at 100 percent of nameplate-capacity while in fast speed.
NOTICE:



The slip clutch / torque limiter is a safety device to prevent overloading of the hoist. This
device is not intended for use as means to measure the weight of load being lifted.