M3
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Code, Lot and Serial Number
EFFECTIVE: February 3, 2011
This equipment should not be installed, operated or
with the contents of this manual can result in serious bodily
injury or deat h, and/or p ropert y d amag e.
MANUAL
CHAIN HOIST
CB SERIES
MODEL M3
1/2 Ton through 20 Ton Capacity
maintained by any person who has not read and understood
all the contents of this manual. Failure to read and comply
Table of Contents
Section Pag e Number
1.0 Important Information and Warnings ………………… ……… …………… …… ………… ……… ……… 4
1.1 Terms and Summary
1.2 Warning Tags and Labels
2.0 Technical Information…………………… …………… ……………… …………… …………… .…………. 7
2.1 Specifications
2.2 Dimensions
2.3 Optional Equipment
3.0 Preoperational Procedures ……………………………………………………………………………… 11
3.1 Chain
3.2 Attachment Points
3.3 Mounting the Hoist
3.4 Preoperational Checks and Trial Operation
4.0 Operation ……………………… …………………………………………………………………………... 13
4.1 Introduction
4.2 Shall’s and Shall Not’s for Operation
4.3 Operation
4.4 Principal and Operation of the Slip Clutch
5.0 Inspection ……………………… ………………………………………………………………………….. 16
5.1 General
5.2 Inspection Classification
5.3 Frequent Inspection
5.4 Periodic Inspection
5.5 Occasionally Used Hoists
5.6 Inspection Records
5.7 Inspection Methods and Criteria
2
Section Pag e Number
6.0 Maintenance & Handling …………………………………………………………………………………. 26
6.1 Lubrication
6.2 Disassembly, Assembly and Ad justment
6.3 Hoist Disassembly
6.4 Hoist Assembly
6.5 Storage
6.6 Outdoor Installation
7.0 Troubleshooting ………………………… …………… ……………… …………… ……………… ……… 36
8.0 Warranty …………………………………………………………………………………………………… 39
9.0 Parts List ………………………………… …………… ……………… …………… …………………… … 41
3
1.0 Important Information and Warnings
1.1 Terms and Summary
This manual provides impor tant infor mation for personnel involved with the installation, operation and
maintenance of this product. Although you may be familiar with this or similar equipment, it is strongly
recommended that you read this manual before installing, operating, or maintaining the product.
Danger, Warning, Caution, and Notice
Throughout this manual there are steps and procedures that can present hazardous situations. The following
signal words are used to identify the degree or level of hazard seriousness.
Danger indicates an imminently hazardous situation which, if not avoided, will result in
death or serious inj ury, and property damage.
Warning indicates an imminently hazardous situation which, if not avoided, could result in
death or serious inj ury, and property damage.
Caution indicates a potentially hazardous situation which, if not avoided, may result in
minor or moder ate injur y or property damage.
Notice is used to notify people of installation, operation, or maintenance information which
is important but not directly hazard-related.
These general instructions deal with the normal installation, operation, and maintenance situations encountered with
the equipment described herein. The instructions should not be interpreted to anticipate every possible contingency
or to anticipate the final system, crane, or configuration that uses this equipment. For systems using the equipment
covered by this manual, the supplier and owner of the system are responsible for the system’s compliance with all
applicable industry standards, and with all applicable federal, state, and local regulations/codes.
This manual includes instructions and parts information for a variety of hoist types. Therefore, all instructions and
parts information may not apply to any one type or size of specific hoist. Disregard those portions of the instructions
that do not apply.
Record your hoist’s Code, Lot and Serial Number (see Section 9) on the front cover of this manual for identification
and future reference to avoid referring to the wrong manual for information or instructions on installation, operation,
inspection, maintenance, or parts.
Use only Harrington authorized replacement parts in the service and maintenance of this hoist.
4
Equipment described herein is not designed for and
people, or for lifting or supporting loads over people.
Equipment described herein should not be used in conjunction with other equipment unless necessary and/or
required safety devices applicable to the system, crane, or application are installed by the system designer, system
manufacturer, crane manufacturer, installer, or user.
Modifications to upgrade, rerate, or otherwise alter this equipment shall be authorized only by the original equipment
manufacturer.
If a below-the-hook lifting device or sling is used with a hoist, refer to ANSI/ASME B30.9, “Safety Standard for
Slings” or ANSI/ASME B30.20, “Safety Standard for Below-the-Hook Lifting Devices”.
Hoists used to handle hot molten material may require additional equipment or devices. Refer to ANSI Z241.2,
“Safety Requirements for Melting and Pouring of Metals in the Metalcasting Industry”.
Failure to read and comply with any one of the limitations noted herein can result in serious bodily injury or death,
and/or property damage.
MUST NOT be used for lifting, supporting, or transporting
It is the responsibility of the owner/user to install, inspect, test, maintain, and operate a hoist in accordance with
ANSI/ASME B30.16, “Overhead Hoists (Underhung)” and OSHA Regulations. If the hoist is installed as part of a
total lifting system, such as an overhead crane or monorail, it is also the responsibility of the owner/user to comply
with the applicable ANSI/ASME B30 volume that addresses that type of equipment.
It is the responsibility of the owner/user to have all personnel that will install, inspect, test, maintain, and operate a
hoist read the contents of this manual and applicable portions of ANSI/ASME B30.16, “Overhead Hoists
(Underhung)” and OSHA Regulations.
If the hoist owner/user requires additional information, or if any information in the manual is not clear, contact
Harrington or the distributor of the hoist. Do not install, inspect, test, maintain, or operate this hoist unless this
information is fully understood.
A regular schedule of inspection of the hoist in accordance with the requirements of ANSI/ASME B30.16 should be
established and records maintained.
5
1.2 Warning Tags and Labels
The warning tag illustrated below in Figure 1-1 is supplied with each hoist shipped from the factory. If the tag is
not attached to your hoist’s no-load side of the load chain, order a tag from your dealer and install it. Read and
obey all warnings attached to this hoist. Tag is not shown actual size.
Front Back
Figure 1-1 Warning Tag Attached to Hoist (shown larger for legibility)
6
2.0 T echni cal Informati on
2.1 Specifications
2.1.1 Product Code
2.1.2 Operating Conditions and Environment
Temperature range: -4° to +140°F (-20° to +60°C)
Humidity: 100% or less (Not an Underwater Device)
Table 2-1 Hoist Speci ficat ion s
Load Chain
Diameter
(mm) x
Chain Fall
Lines
Overhaul
Ratio
Net
Weight
(lbs)
Lift
(ft)
8
12
Pull to
Lift
Load
(lbs)
48 5.0x1 25 22 23 1.0
72 9.0x4 396 186 203 5.5
Cap.
(Tons)
1½ CB015 70 7.1x1 57 32 33 1.4
2 ½ CB025 66 9.0x1 99 56 58 1.8
10 CB100
15 CB150 74 9.0x6 594 346 368 7.9
20 CB200 72x2 9.0x8 396x2 524 678 10.9
Product
Code
½ CB005
1 CB010 58 6.3x1 43 25 26 1.2
2 CB020 72 8.0x1 70 41 43 1.6
3 CB030 72 7.1x2 114 49 53 2.1
5 CB050 68 9.0x2 198 85 89 3.0
8 CB080 75 9.0x3 297 124 131 4.2
Std.
Shipping
Weight
Approx.
(lbs)
Weight for
Additional
One Foot
of Lift (lbs)
*NOTE: Any lift of chain is available on request. Simply specify the length of chain desired when ordering.
Because Harrington chains are specially heat treated, only authentic Harrington chains should be used on your
hoist. NEVER attempt to lengthen the chain by attaching additional chain links to it or by any other means.
7
CB005 to CB025
CB030 to CB050
CB080
Figure 2-1
Figure 2-2
Figure 2-3
CB100 to CB150
CB200
Figure 2-4
Figure 2-5
2.2 Dimensions
Cap.
(Tons)
1/2 CB005 11.2 6.2 6.3 8.0 2.7 3.9 1.1 3.5
1 CB010 11.6 6.4 6.3 8.0 2.8 3.9 1.1 4.0
1 1/2 CB015 13.8 6.7 7.2 8.0 3.1 4.4 1.3 4.7
2 CB020 14.8 7.2 8.0 8.0 3.4 4.9 1.4 4.9
2 1/2 CB025 16.5 7.6 9.2 8.0 3.6 5.6 1.6 5.4
3 CB030 20.1 6.7 9.3 8.3 3.1 6.4 1.7 5.8
5 CB050 23.6 7.6 11.1 10.0 3.6 7.6 1.8 6.8
8 CB080 30.3 7.6 14.7 10.3 3.6 10.0 2.9 10.8
10 CB100 29.9 7.6 17.2 14.9 4.4 12.1 2.9 11.6
15 CB150 40.2 10.6 19.4 15.9 4.7 13.3 3.1 12.6
20 CB200 46.5 14.7 29.4 16.3 7.4 14.7 3.2 13.8
Product
Code
Table 2-2 Hoist Di mension s
Headroom
c
(in)
a
(in) b (in) d (ft) e (in) f (in) g (in) x (in)
8
Table 2-3 Hook D imen sion*
T = Top Hook
B = Bottom Hook
Units = inch
Cap.
(Tons)
2 ½ CB025 1.6 1.0 1.3 1.0 2.1 1.6
*Refer to Section 5.7 for in specti on dimension s and limits.
Product
Code
1/2 CB005
1 CB010 1.0 0.6 0.9 0.6 1.7 1.1
1½ CB015 1.2 0.8 1.0 0.8 1.9 1.3
2 CB020 1.4 0.9 1.2 0.9 2.0 1.4
3 CB030 1.8 1.1 1.5 1.1 2.2 1.7
5 CB050 2.2 1.4 1.9 1.4 2.5 1.8
8 CB080 3.0 1.9 2.5 1.9 3.3 2.9
10 CB100 3.0 1.9 2.5 1.9 3.3 2.9
15 CB150 3.7 2.4 3.1 2.4 3.9 3.1
20 CB200 4.2 2.6 3.5 2.6 4.3 3.2
Hook a b c d e g
0.8 0.5 0.7 0.5 1.4 1.1
T & B
2.3 Optional Equipment
2.3.1 Optional Latch Lock Hooks
The Bullard hook has a conventional hook shape with a special, heavy-duty, rotating, spring-
loaded, locking latch. The latch remains locked until it is released by the operator. Refer to Figure
2-6.
The Shur-Loc hook is a special design hook where the latch remains fixed and the hook swings
to unlock. The hook cannot be opened while a load is applied.
Installation of these hooks may change the headroom.
See Section 9.4, Parts List for a complete Latch Lock Hook part listing.
Figure 2-6 Latch Lock Hooks
9
2.3.2 Optional Inspection Hooks
The Inspection Hook is designed to facilitate the inspection of the internal surfaces of the hook
yoke and shank portion of the hook itself. The Inspection Hook is suitable for applications where
inspection of the internal parts of the hook set is required. The inspection hook uses the standard
Harrington hook set and is assembled with high-strength locking fasteners instead of rivets.
Inspection hooks are available in top and bottom versions. Refer to Figure 2-7.
Disassembly and re-assembly involves removal and reinstallation of the yoke fasteners of the
Inspection Hook Set Assembly followed by testing of the hoist prior to returning it to service.
The Inspection Hook is available for CB005 through CB025 hoists.
See Section 9.4, Parts List for a complete Inspection Hook part listing.
Figure 2-7 Inspection Hooks
2.3.3 Optional Chain Containers
Chain containers are sized based on the capacity and lift of the hoist. The containers are
constructed from vinyl coated canvas with a steel frame on top. The containers are prepared
differently depending on the host model. See Harrington document EDOC0154 for sizing
information.
Figure 2-8 CB Chain Container
10
3.0 Preoperational Procedu res
3.1 Chain
3.1.1
Verify that the load chain is not twisted or tangled prior to operating the hoist.
Make sure the bottom hook on the 3 (CB030) through the 20 (CB200) Ton multiple fall hoists is not
capsized. See Figures 3-1 and 3-2. Correct all chain irregularities before conducting the first hoist
operation.
Figure 3-1 Twist in Load Chain – Double Fall Model
Figure 3-2 Capsized Hook and Chain – Double Fall Model
11
3.2 Attachment Points
3.2.1
components and supporting structure are adequate to support the hoist and its load. If necessary
consult a professional that is qualified to evaluate the adequacy of the suspension location and its
supporting structure.
3.2.2
Prior to attaching the hoist ensure that all attachment points, suspension
See Section 6.6 for outdoor installation considerations.
3.3 Mounting the Hoist
3.3.1 Hook Mounted to a Fixed Location - Attach the hoist’s top hook to the fixed suspension point.
3.3.2
that the hook’s latch is engaged.
Ensure that the fixed suspension point rests on the center of the hook’s saddle and
3.4 Preoperation al Ch ecks an d T ria l Op eratio n
3.4.1
other lifting attachments before use. Inspect all load suspension members for damage prior to use and
replace or repair all damaged parts.
3.4.2
Section 3.1.
3.4.3 Measure and record the “k” dimension of all hooks on hoist. See Table 5-4 under Section 5,
“Inspection”.
3.4.4 Record the hoist's Code, Lot and Serial Number (from the name plate on the hoist; see Section 9) in
the space provided on the cover of this manual.
Confirm the adequacy of the rated capacity for all slings, chains, wire ropes and all
Verify and correct all chain irregularities prior to operating the hoist. Refer to
3.4.5 Ensure that the hoist is properly installed to a fixed point.
3.4.6 Ensure that all nuts, bolts and split pins (cotter pins) are sufficiently fastened.
3.4.7 Confirm proper operation.
Before operating read and become familiar with Section 4 - Operation.
Before operating ensure that the hoist meets the Inspection, Testing and Maintenance
requirements of ANSI/ASME B30.16.
Before operating ensure that nothing will interfere with the full range of the hoist’s operation.
12
O SEIZURES, LOSS OF
• Read ANSI/ASME B30.16 and ANSI/ASME B30.10.
4.0 Operation
4.1 Introduction
DO
NOT WALK UNDER A SUSPENDED LOAD
HOIST OPERAT ORS SHALL BE REQUIRED TO READ THE OPER ATION SECTION O F THIS MANUAL, THE
WARNINGS CONTAINED IN THIS MANUAL, INSTRUCTION AND WARNING LABELS ON THE HOIST OR
LIFTING SYSTEM , AND THE OPERATION SECTIONS OF ANSI/ASM E B30.16 and ANSI /ASME B30.10. THE
OPERATOR SHALL ALSO BE REQUIRED TO BE FAMILIAR WITH THE HOIST AND HOIST CONTROLS
BEFORE BEING AUTHORIZED TO OPERATE THE HOIST OR LIFTING SYSTEM.
HOIST OPERATORS SHOULD BE TRAINED IN PROPER RIGGING PROCEDU RES FOR THE AT TACHMENT
OF LOADS TO THE HOIST HOOK .
HOIST OPERATORS SHOULD BE TRAINED TO BE AWARE OF POTENTIAL MALFUNCTIONS OF THE
EQUIPMENT T HAT REQUIRE ADJUST MENT OR REP AIR, AND TO BE IN STRUCTED TO STOP OPERAT ION
IF SUCH MALFUNCTIONS OCCUR, AND T O IMMEDIATELY ADVIS E THEIR SUPERVI SOR SO CORRECT IVE
ACTION CAN BE TAKEN.
HOIST OPERAT ORS SHOULD HAVE NORMAL DEPTH PER CEPTION, FIELD OF VISION, REACTIO N TIME,
MANUAL DEXTERITY, AND COORDINATION.
HOIST OPERATORS SHOULD
PHYSICAL CONTROL, PHYSICAL DEFECTS, OR EMOTIONAL INSTABILITY THAT COULD RESULT IN
ACTIONS OF THE OPERATOR BEING A HAZARD TO THE OPERATOR OR TO OTHERS.
HOIST OPERATORS SHOULD NOT
INFLUENCE OF ALCOHOL, DRUGS, OR MEDICATION.
NOT HAVE A HISTORY OF OR BE PRONE T
OPERATE A HOIST OR LIFTING SYSTEM WHEN UNDER THE
• Read the hoist manufacturer’s Operating and Maintenance Instructions.
• Read all labels attached to equipment.
The operation of a hoist involves more than activating the hoist’s c ontr ols. Per the AN SI/A SME B 30 sta ndar ds , th e us e
of a hoist is subject to certain hazards that cannot be m itigated by engineered features, but onl y by the exercise of
intelligence, care, common sense, and experience in anticipating the effects and results of activating the hoist’s controls.
Use this guidance in conjunction with other warnings, cautions, and notices in this manual to govern the operat ion and
use of your hoist.
13
4.2 Shall’s and Shall Not’s for Operation
Improper operation of a hoist can create a poten tially haz ardous
situation which, if not avoided, could result in
and substantial property damage. To avoi d such a poten tially
hazardous situation THE OPERATOR SHALL:
NOT
•
•
•
•
lift more than rated load for the hoist.
use damaged hoist or hoist that is not working
NOT
properly.
use hoist with twisted, kinked, damaged, or
NOT
worn chain.
use hoist if the bottom hook is capsized
NOT
(multiple fall hoists - see Section 3.1).
death or serious injury ,
•
•
•
•
leave load s upported b y the hois t unattended
NOT
unless specific precautions have been taken.
allow the chain, or hook to be used as an
NOT
electrical or welding ground.
allow the chain, or ho ok to be touched by a
NOT
live welding electrode.
NOT
remove or obscure the warnings on the hoist.
•
•
•
•
•
•
•
•
•
•
•
use the hoist to lift, support, or transport
NOT
people.
lift loads over people.
NOT
NOT
apply load unless load chain is properly
seated in the load sheave (and idle sheave for hoist
with multiple chain falls).
use the hoist in such a way that could result in
NOT
shock or impact loads being applied to the hoist.
attempt to lengthen the load chain or repair
NOT
damaged load chain.
NOT
operate hoist when it is restricted from forming
a straight line from hook to hook in the direc tion of
loading.
use load chain as a s ling or wrap load chain
NOT
around load.
apply load if binding prevents equal loading
NOT
on all load-supporting chains.
operate beyond the limits of the load chain
NOT
travel.
support load on hook tip unless hook is
NOT
designed for tip loading.
use in a way that causes either hook to be
NOT
side-loaded.
•
NOT
operate a hoist on which the safety placards
or decals are missing or illegible.
• Be familiar with operating controls, procedures, and
warnings.
• Make sure the unit is securely attached to a
suitable support before applying load.
• Make sure load slings or other approved single
attachments are properl y sized, rigged, and seate d
in the hook saddle.
• Take up slack carefully - make sure load is
balanced and load-holding action is secure bef ore
continuing.
• Make sure all persons stay clear of the supported
load.
• Protect the hoist’s load chain from weld splatter or
other damaging contaminants.
• Report Malfunctions or unusual performances
(including unusual noises) of the hois t and remove
the hoist from service until the malfunction or
unusual performance is resolved.
• Warn personnel before lifting or moving a load.
• Warn personnel of an approaching load.
14
Improper operation of a hoist can create a poten tially haz ardous
situation which, if not avoided, could result in
injury
, or property damage. To avoid such a potentiall y haz ardous
situation THE OPERATOR SHALL:
minor or moderate
• Maintain a firm footing or be otherwise secured
when operating the hoist.
• Check brake function by tensioning the hoist prior
to each lift operation.
• Use hook latches. Latches are to retain slings,
chains, etc. under slack conditions only.
• Make sure the hook latches are closed and not
supporting any parts of the load.
• Make sure the load is free to move and will clear all
obstructions.
• Av oid swinging the load or hook.
• Make sure hook travel is in the same direction as
shown on controls.
• Inspect the hoist regularly, replace damaged or
4.3 Operation
1) Face the hand chain wheel side of the hoist.
2) To raise the load, pull hand chain clockwise.
3) To lower the load, pull hand chain counterclockwise.
worn parts, and keep appropriate records of
maintenance.
• Use the hoist manufacturer’s recommended parts
when repairing the unit.
• Lubricate load chain per hoist manufacturer’s
recommendations.
use the hoist load limiting or warning device to
NOT
•
measure load.
•
•
•
allow your attention to be diverted from
NOT
operating the hoist.
NOT
allow the hoist to be subjected to sharp
contact with other hoists, structures, or objects
through misuse.
adjust or repair the hoist unless qualified to
NOT
perform such adjustments or repair.
NOTE: The clicking sound of the pawl when a load is being raised indicates normal operation.
4.4 Principle and Operation of the Slip Clutch
: IMPROPER chain hoist use could result in death or serious injury. To avoid these hazards:
: NEVER disassemble or attempt to adjust the slip clutch assemby. Any attempt to do so will void
the warranty. Contact your closest Harrington Distributor if service is required.
The standard slip clutch device prevents the hoist from being used to lift damaging loads beyond the rated capacity of
the manual chain hoist. When an applied load exceeds the preset value, the hand chain wheel rotates idly. The
mechanism is a friction clutch system located between the hand chain wheel and the mechanical brake.
15
5.0 Inspection
5.1 General
5.1.1 The inspection procedure herein is based on ANSI/ASME B30.16. The following definitions are from
ANSI/ASME B30.16 and pertain to the inspection procedure below.
Designated Person
duties to which he/she is assigned.
Qualified Person – a person who, by possession of a recognized degree or certificate of
professional standing, or who, by extensive knowledge, training, and experience, has successfully
demonstrated the ability to solve or resolve problems relating to the subject matter and work.
Normal Service – that distributed service which involves operation with randomly distributed loads
within the rated load limit, or uniform loads less than 65% of rated load for not more than 15% of
the time.
Heavy Service – that service which involves operation within the rated load limit which exceeds
normal service.
Severe Service
– that service which involves normal or heavy service with abnormal operating
conditions.
5.2 Inspection Classification
5.2.1 Initial Inspection – prior to initial use, all new, altered, or modified hoists shall be inspected by a
designated person to ensure compliance with the applicable provisions of this manual.
5.2.2 Inspection Classification – the inspection procedure for hoists in regular service is divided into two
general classifications based upon the intervals at which inspection should be performed. The intervals
in turn are dependent upon the nature of the critical components of the hoist and the degree of their
exposure to wear, deterioration, or malfunction. The two general classifications are herein designated
as FREQUENT and PERIODIC, with respective intervals between inspections as defined below.
5.2.3 FREQUENT Inspection – visual examinations by the operator or other designated personnel with
intervals per the following criteria:
– a person selected or assigned as being competent to perform the specific
Normal service – monthly
Heavy service – weekly to monthly
Severe service – daily to weekly
Special or infrequent service – as recommended by a qualified person before and after each
occurrence.
5.2.4 PERIODIC Inspection – visual inspection by a designated person with intervals per the following
criteria:
Normal service – yearly
Heavy service – semiannually
Severe service – quarterly
Special or infrequent service – as recommended by a qualified person before the first such
occurrence and as directed by the qualified person for any subsequent occurrences.
16
5.3 Frequent Inspection
5.3.1 Inspections should be made on a FREQUENT basis in accordance with Table 5-1, “Frequent
Inspection.” Included in these FREQUENT Inspections are observations made during operation for
any defects or damage that might appear between Periodic Inspections. Evaluation and resolution of
the results of FREQUENT Inspections shall be made by a designated person such that the hoist is
maintained in safe working condition.
All functional operating mechanisms for proper operation and adjustment, maladjustment and
unusual sounds.
Hoist braking system for proper operation
Hooks and latches in accordance with ANSI/ASME B30.10
Hook latch operation
Load chain in accordance with Section 5.7
Load chain reeving for compliance with Section 3.1 and 6.4
Hoist support for damage
Table 5-1 Frequent Inspection
5.4 Periodic Inspect ion
5.4.1 Inspections should be made on a PERIODIC basis in accordance with Table 5-2, “Periodic Inspection.”
Evaluation and resolution of the results of PERIODIC Inspections shall be made by a designated
person such that the hoist is maintained in safe working condition.
5.4.2 For inspections where load suspension parts of the hoist are disassembled, a load test per ANSI/ASME
B30.16 must be performed on the hoist after it is re-assembled and prior to its return to service.
Requirements of frequent inspection.
Evidence of loose bolts, nuts, or rivets.
Evidence of worn, corroded, cracked, or distorted parts such as load blocks, suspension housing,
chain attachments, clevises, yokes, suspension bolts, shafts, gears, bearings, pins, rollers and
locking and clamping devices.
Evidence of damage to hook retaining nuts or collars and pins, and welds or rivets used to secure
the retaining members.
Evidence of damage or excessive wear of load and idler sheaves.
Evidence of worn, glazed or oil contaminated friction disks; worn pawls, cams or ratchet; corroded,
stretched, or broken pawl springs in brake mechanism.
Evidence of damage to supporting structure.
Table 5-2 Periodic Inspection
Function label on hoist for legibility.
Warning label properly attached to the hoist and legible (see Section 1.2).
End connection of load chain.
17
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