This equipment should not be installed, operated or
maintained by any person who has not read and understood
all the contents of this manual. Failure to read and comply
with the contents of this manual can result in serious bodily
injury or death, and/or property damage.
Page 2
Table of Contents
Section Page Number
1.0 Important Information and Warnings ……………………………………………………………………… 4
10.0 Parts List …………………………………………………………………………………………………… 47
3
Page 4
1.0 Important Information and Warnings
1.1 Terms and Summary
This manual provides important information for personn el involved with the insta llation, operation an d 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 th e product.
Danger, Warning, Caution and Notice
Throughout this manual there are steps and proce dures that can present ha zardous situatio ns. The following signal
words are used to identify the degree or level of hazard seri ousness.
DANGER
WARNING
CAUTION
NOTICE
Danger indicates an imminently hazardou s situation which, if not avo ided, will result in death or
serious injury, and property damage.
Warning indicates an imminently hazardous situatio n which, if not avoided, could result in death or
serious injury, and property damage.
Caution indicates a potentially hazardous situation whi ch, if not avoided, may re sult minor or
moderate injury or property damage.
Notice is used to notify people of installation, operation, or maintenanc e information whi ch is
important but not directly hazard-related.
CAUTION
These general instructions deal with the no rmal installatio n, operation, and maint enance situation s encountered with
the equipment described herein. The inst ructions sh ould not be interp reted to anticipate eve ry possible co ntingency
or to anticipate the final system, crane, or configuratio n that uses this e quipment. For syst ems using the equipment
covered by this manual, the supplier and o wner of the syst em are responsible for the system’s compliance with all
applicable industry standards, a nd with all app licable federal, st ate and local regul ations/code s.
This manual includes instructions an d parts information for a v ariety of hoi st types. Therefore, all i nstructions an d
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 Numb er (see section 1 0) on the front cover of thi s manual for identifi cation
and future reference to avoid referring to the wrong m anual for inform ation or instru ctions on instal lation, operation,
inspection, maintenance, or parts.
Use only Harrington authorized replacement pa rts in the se rvice and mainte nance of this hoi st.
4
Page 5
WARNING
Equipment described herein is not designed for and MUST NOT
people, or for lifting or supporting load s over people.
Equipment described herein should not be used i n conjunction with other equi pment unless necessary and/ or
required safety devices applicable to the system, crane, or appli cation are instal led by the syste m designe r, system
manufacturer, crane manufacturer, installer, or user.
Modifications to upgrade, rerate, or otherwise alter this equipm ent shall be auth orized only by the ori ginal equipment
manufacturer.
Equipment described herein may be used in the desi gn and manufactu re of cranes or mon orails. Additional
equipment or devices may be required for the crane and monorail to comply with applicabl e crane desi gn and
safety standards. The crane designer, crane manufacturer, or user is responsible to furnish these additional items
for compliance. Refer to ANSI/ASME B30.17, “Safety Standard for Top-Running Single Girder Cranes”;
ANSI/ASME B30.2 “Safety Standard for Top-Running Double-Girder Cranes”; and ANSI/ASME B30.11 “S afety
Standard for Underhung Cranes and Mon orails”.
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”.
be used for lifting, supporting, or transporting
Hoists and cranes, used to handle hot molten material m ay require additional e quipment or device s. Refer to ANS I
Z241.2, “Safety Requirements for Melting and P ouring of Metal s in the Metalc asting Indust ry”.
Electrical equipment described herein is design ed and built in co mpliance with Harri ngton’s interpretation of
ANSI/NFPA 70, “National Electrical Code”. The system designer, system manufacturer, crane designer, crane
manufacturer, installer, or user is resp onsible to a ssure that the i nstallation a nd associated wi ring of these electrical
components is in compliance with ANSI/NFPA 70, and all applicable Federal, State and Local Codes.
Failure to read and comply with any one of the limitation s noted herein can result in seriou s bodily injury or death,
and/or property damage.
5
Page 6
DANGER
HAZARDOUS VOLTAGES ARE PRESENT IN THE CONTROL BOX, OTHER ELECTRICAL COMPONENTS,
AND CONNECTIONS BETWEEN THESE COMPONENTS.
Before performing ANY mechanical or electrical mainten ance on the equipme nt, de-energize (disconn ect) the main
switch supplying power to the equipment; and lock and t ag the main swit ch in the de-e nergized positio n. Refer to
ANSI Z244.1, “Personnel Protection – Lockout/Tagout of Energy So urces”.
Only trained and competent personnel should i nspect and repair th is equipment.
NOTICE
It is the responsibility of the owner/user to install, inspect, test, ma intain, and operate a hoist in accordance with
ANSI/ASME B30.16, “Safety Standard for Overhead Hoists”, OSHA Regulations and ANSI/NFPA 70, National
Electric Code. If the hoist is installed as part of a total lifti ng system, such a s 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 personne l that will install, in spect, test, maint ain, and operate a
hoist read the contents of this manual and appli cable portions of ANSI/ ASME B30.16, “Safety Standa rd for
Overhead Hoists”, OSHA Regulations and ANSI/NFPA 70, “National Electric Code ”. If the hoist is installed a s part
of a total lifting system, such as an overhead crane, the applicable ANSI/ASME B30 volume that addresses that
type of equipment must also be read by all perso nnel.
If the hoist owner/user requires additional information, o r if any information in the m anual is not clear, co ntact
Harrington or the distributor of the hoist. Do not inst all, 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.
6
Page 7
1.2 Warning Tags and Labels
The warning tag illustrated below in Figure 1-1 is supplie d with each hoist ship ped from the factory. If the tag i s
not attached to your hoist’s pendant cord, order a tag from your deal er and install it. Read and obe y all
warnings attached to this hoist. Tag is not sh own actual si ze.
front back
Figure 1-1 Warning Tag Attached to Hoist
7
Page 8
2.0 T echnical Information
2.1 Specifications
2.1.1 Product Code
2.1.2 SNER Models – Harrington SNER series hoist s have a frictio n clutch mech anism that provid es over
winding protection.
2.1.3 Operating Conditions and Environment
Temperature range: -4° to +104°F (-20° to +40°C)
Relative Humidity: 85% or less
Enclosure Rating: Hoist Meets IP 55, Pendant Meets IP65
Supply Voltage: Standard 115/230V-1-60 (Single Phase)
*The "L" dimension s are based on the standa rd lift of 10 feet.
d
(in)
10.4
10.8
12.6
e
(in)
11.9
12.6
14.4
g
(in)
0.9
1.2
h
(in)
4.0
4.7
6.1
i
(in)
3.9
4.1
5.2
9
Page 10
Table 2-3 Hook Dimension*
Capacity Code Hook a b c d e g
003S, 005L, 005S
010L, 010S T & B 1.4 0.9 1.2 0.9 1.7 1.2
020L T & B 1.9 1.1 1.6 1.1 2.0 1.5
030C T & B 2.2 1.4 1.9 1.4 2.4 1.7
*Refer to Section 5.7 for inspection dimensi ons and lim its.
T 1.1 0.7 0.9 0.7 1.4 1.1
B 1.1 0.7 0.9 0.7 1.4 0.9
T = Top Hook
B = Bottom Hook
Units = inch
10
Page 11
3.0 Preoperational Procedures
3.1 Fill Gear Box with Oil
3.1.1
3.1.2 For a new hoist the correct quantity and type of oil is supplied with th e hoist in separa te container(s).
3.1.3 Refer to Section 6.2 when replacing the gear oil or chec king the gear oil level.
Table 3-1 Amount of Gear Oil
Capacity Code quarts liters
003S, 005L 0.74 0.7
005S, 010L 1.06 1.0
010S, 020L, 030C 1.80 1.7
CAUTION
Remove the fill plug from the top of the hoist and connect the flexibl e pour tube to the oil cont ainer.
Pour in all of the oil from the separate container(s), then replace the fill plug.
DO NOT use any oil or quantity other than that listed b elow.
Figure 3-1 Oil Plug Locations
3.2 Chain
3.2.1 The quantity and location of the chain com ponents inclu ding cushion ru bbers, chain springs and st riker
plates depend on the hoist model, capacity and li mits switches. Never operate the ho ist with incorrect,
missing or damaged chain compon ents. Refer t o the hoist' s nameplate, Table 3-2, and Figures 3-2, 3-
3, and 3-4 and ensure that all chain component s are in the correct locati on and properly installed.
3.2.2 When the hoist is used without a chain co ntainer, the free end of the chain is atta ched to the hoist b ody
as shown in Figure 3-4. Connect the no load end of the chain to Chain Guide A with the En d Wire or
End Suspenderprovided. Make sure the chain remai ns free of twists and the chain Stopper is installed
on the correct link. Refer to Table 3-2 for proper placement of Stopper.
003S, 005L, 005S, 010L,
Table 3-2 Chain Stopper Placement
Capacity Code Without Chain Container With Chain Container
th
15
010S, 020L, 030C
link from the free end 3rd link from the free end
11
Page 12
Figure 3-2 Chain Component Arrangement for Hoists with Upper Limit Switch Only.
Figure 3-3 Chain Component Arrangement for Hoists with Optional Upper and Lower Limit Switch.
12
Page 13
Figure 3-4 Attachment of Chain to Hoist Body – No Chain Conta iner
3.2.3 When the optional canvas chain container is u sed, unfold it fully and install it on the hoist body as
shown in Figure 3-5. In this case the free end of the chain is not attached to the hoist body and the
chain stopper is installed on the third link from the free end . To place the chain i nto the chain conta iner,
feed the chain into the chain container begi nning with the free end. Take care to av oid twisting or
tangling the chain. NEVER put all the chain into the container at once. Lumped or twisted chain may:
Upper Limit Switch Only - jam against the hoist body activating the fri ction clutch an d potentially
damaging the chain.
Upper and Lower Limit Switch (Optional) - activate the down limit switch and stop the hoist during
lowering.
3.2.4
CAUTION
stored in the container. The amount of chain the container must hold i s equal to the lift on th e hoist.
DO NOT use a chain container with a storage capacity less than the lif t length on the hoi st. If all of the
chain can not be stored in the container, the limit switch will not operate properly.
Each chain container indicates the maximum lengt h of the load chain that can be
Figure 3-5 Attachment of Chain Container to Hoist Body
13
Page 14
3.2.5 When using an optional steel chain container, refer to the assembly dra wing and instructi ons provided
with the container for correct assembly and attachment.
3.2.6
WARNING
Make sure the bottom hook on 3 Ton doub le fall model is not cap sized. See Figure s 3-6 and 3-7.
Correct all chain irregularities before conducting the fi rst hoist operation.
Verify that the load chain is not twisted or tangled prior to operating the hoist.
Figure 3-6 Twist in Load Chain – 3 Ton Double Fall M odel
Figure 3-7 Capsized Hook and Chain – 3 Ton Double Fall Model
3.3 Mounting Location
3.3.1
3.3.2
WARNING
are adequate to support the hoist and its loads. If ne cessary consult a profe ssional that is qualified to
evaluate the adequacy of the suspension location and its supp orting structure.
NOTICE
Prior to mounting the hoist ensure that the suspensio n and its supporti ng structu re
See Section 6.7 for outdoor installation considerations.
14
Page 15
3.4 Mounting the Hoist
3.4.1 Manual Trolley - Follow instructions in Owner’s Ma nual provided with t he trolley.
3.4.2 Motorized Trolley - Follow instructions in O wner’s Manual provided with the trolley.
3.4.3 Hook Mounted to a Fixed Location - Attach the hoist’s top hook to the fixed suspension point.
3.4.4
WARNING
that the hook’s latch is engaged.
Ensure that the fixed suspension point rests on the center of the hook’s saddle and
3.5 Electrical Connections
3.5.1
3.5.2
3.5.3
3.5.4
3.5.5 This instruction applies to installation s where the hoist is installed hoo k mounted to a fixed su spension
CAUTION
CAUTION
DANGER
been de-energized (disconnected). Lock out and tag out in a ccordance with ANSI Z 244.1 “Personnel
Protection -Lockout/Tagout of Energy Sources”.
WARNING
adequately rated for the voltage and ampe rage draw of the h oist.
point or installed on a manual trolley. In this case t he hoist is controll ed by a pendant with two push
buttons – one for raising and one for lowe ring. Refer to the a ppropriate troll ey Owner’s Manu al if the
hoist is installed on a motorized trolley.
Pendant Cord
The Pendant Cord connects to the hoist via a hard wire connection. Make the hardwire connection as
follows:
Refer to Figure 3-8.
Attach the UP pendant wire to terminal number 12 (Red hoist pendant wire).
Attach the DOWN pendant wire to terminal number 11 (White hoist pendant wire).
Attach the pendant COMMON wire to the upper most terminal number 14 (Black hoist pendant
wire).
Install the Cord Strain Relief Cable to the Cord Support on th e bottom of the hoi st as shown in
Figure 3-9.
Power Supply Cable
The Power Supply Cable connects to the hoi st via a hard wire connection. Make the hard wire
connection as follows:
Refer to Figure 3-8.
Attach the Black power supply cable wire to terminal number 10 (Black hoist power supply wire).
Attach the White power supply cable wire to terminal number 9 (White hoist power supply wire).
Attach the Yellow/Green power supply cable wire to the ground screw on the hoist back panel.
Install the Cable Support Arm (pre-installed on the Power Supply Cable) on to the Socket Holder
using the pre-installed Machine S crews and Lo ck Washer s as shown in Figure 3-9.
Use care to avoid twisting or kinking the Power Supply Cable.
Ensure that the voltage of the electric power supply is prope r for the hoist or trolley.
Do not apply variable speed control to the SNER m odel hoist.
Before proceeding, ensure that the electrical supply for t he hoist or trolley has
Make sure all power supply components (plugs, wires, breake rs, fuses etc.) are
15
Page 16
Figure 3-8 Pendant and Power Supply Cable
Hardwire Connections
Power Supply Cable - Installation
If the hoist is hook mounted to a fixed support ensure that the Power Supply Cable is properly
installed and supported between the hoi st and the ele ctrical power sup ply.
If the host is installed on a manual trolley, then the Power Supply Ca ble must be in stalled along th e
beam that the trolley runs on. For curved beams a special cable suspension system will be
needed, and this instruction does not appl y. For straight beams in stall the Power Su pply Cable as
follows:
Install a guide wire system parallel to the beam.
For a manual trolley the guide wire should be positioned slightly outside the hoi st's Cable
Support as shown in Figure 3-9.
Use the Cable Trolleys supplied with the hoist to suspend the Po wer Supply Cable f rom the
guide wire. Space the Cable Trolleys every 5 fe et.
3.5.6 Connection to Electrical Power Source - The white and black wires of the Power Supply Cable should
be connected to an Electric Power Disco nnect Switch or Circuit Brea ker. This connecti on should be
made so that the hoist is phased properly. Refer to Section 3.6.11 for instructions on how to check f or
correct power supply phase connection.
3.5.7 Fuse/Breaker Capacity -The hoist's power supply should be equipp ed with overcurrent protection such
as fuses, which should be selected for 110% to 120% of total listed full load am perage, and sho uld be
dual element time-delay fuses. Refer to the motor nameplate for the full loa d amperage d raw.
Figure 3-9 Pendant and Power Supply
Cable Connections
3.5.8
3.5.9 Voltage Change/Voltage Reconnection – Ref erence drawin g 61364 for a co mplete wiring di agram.
DANGER
shock hazard when touching any part of the hoi st or trolley. In the Power Sup ply Cable the ground wire
will be either Green with Yellow stripe or solid Green. It should always be connect ed to a suitable
ground connection. Do not paint the trolley wheel ru nning surfa ces of the beam as this can affect
grounding.
Note: When changing voltage from 11 5V to 230V, the location o f the black jumper wire is
relocated from terminal 4 of the Mechan ically Interlocke d Contactor, to locatio n 7A of the
Terminal Block. See Fig. 3-10
Grounding - An improper or insufficient gr ound connecti on creates an electrical
16
Page 17
Figure 3-10 230V Jumper Wire Location
3.6 Preoperational Checks and Trial Operation
3.6.1
WARNING
Confirm the adequacy of the rated capacity for all slings, chain s, wire ropes and all
other lifting attachments before use. Inspect all load suspension m embers for da mage prior to us e and
replace or repair all damaged parts.
3.6.2
WARNING
Verify and correct all chain irregularities prior to op erating the hoist. Ref er to
Section 3.2.
3.6.3 Measure and record the “k” dimension of all hooks on hoist. See Ta ble 5-4 under Section 5,
“Inspection”.
3.6.4 Record the hoist's Code, Lot and Serial Number (from th e name plate on the ho ist; see Section 1 0) in
the space provided on the cover of this manual.
3.6.5 Ensure that the hoist is properly installed to either a fixe d point, or trolley, whichev er applies.
3.6.6 If hoist is installed on a trolley, ensure that
trolley is properly installed on the beam, and
stops for the trolley are correctly positioned and securely i nstalled on the bea m.
3.6.7 Ensure that all nuts, bolts and split pins (cotter pins) are suffici ently fastened.
3.6.8 Pull down on the Pendant and ensure that the Cord Strain Relief Cable takes t he force, not the
Pendant Cord.
3.6.9
CAUTION
Check supply voltage before everyday use. If the voltage vari es more than 10% of
the rated value, electrical devices may not function normally.
3.6.10 Confirm proper operation.
Before operating read and become familiar with Section 4 - Operation.
Before operating ensure that the hoist (and trolley) m eets the Inspection, Testi ng and Maint enance
requirements of ANSI/ASME B30.16.
Before operating ensure that nothing will interfere with the full range of the hoist’s (and troll ey’s)
operation.
3.6.11
WARNING
The hoist must be connected to the power source su ch that its direct ion of
operation corresponds to the up-and-down commands is sued from the pe ndant cont rol; i.e. pushing the
up button must cause the hoist to raise. If the hoist does not operate co rrectly, shut off and lockout
/tagout the main power source to the hoist. Di sconnect and switch the black and white input power
leads at the power source to correct the hoist’s motor phasing.
17
Page 18
4.0 Operation
4.1 Introduction
DANGER
DO NOT
WALK UNDER A SUSPENDED LOAD
WARNING
HOIST OPERATORS SHALL BE REQUIRED TO READ THE OPERAT ION SECTION OF THIS MANUAL, THE
WARNINGS CONTAINED IN THIS MANUAL, INSTRUCTION AND WARNING LA BELS ON THE HOIST OR
LIFTING SYSTEM, AND THE OPERATION SECTIONS OF ANSI/ASME 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 PROCEDURES FOR THE ATTACHMENT
OF LOADS TO THE HOIST HOOK.
HOIST OPERATORS SHOULD BE TRAINED TO BE AWARE OF POTENTIAL MALFUNCTIONS OF THE
EQUIPMENT THAT REQUIRE ADJUSTMENT OR REPAIR, AND TO BE INSTRUCTED TO STOP OPERATION
IF SUCH MALFUNCTIONS OCCUR, AND TO IMMEDIATELY ADVISE THEIR SUPERVISOR SO CORRECTIVE
ACTION CAN BE TAKEN.
HOIST OPERATORS SHOULD HAVE NORMAL DEPTH PERCEPTION, FIELD OF VISION, REACTION TIME,
MANUAL DEXTERITY, AND COORDINATION.
HOIST OPERATORS SHOULD NOT
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.
OVERHEAD HOISTS ARE INTENDED ONLY FOR VERTICAL LIFTING SERVICE OF FREELY SUSPENDE D
UNGUIDED LOADS. DO NOT
ARE NOT FREELY SUSPENDED, OR LOADS THAT ARE GUIDED.
HAVE A HISTORY OF OR BE PRONE TO SEIZURES, LOSS OF
OPERATE A HOIST OR LIFTING SYSTEM WHEN UNDER THE
USE HOIST FOR LOADS THAT ARE NOT LIFTED VERTICALLY, LOADS THAT
NOTICE
• Read ANSI/ASME B30.16 and ANSI/ASME B30.10.
• Read the hoist manufacturer’s Operating and Mai ntenance Instructi ons.
• Read all labels attached to equipment.
18
Page 19
The operation of an overhead hoist involves more than activating the hoist’s controls. Per the ANSI/ASME B30
standards, the use of an overhead hoist is subject to certain hazards that cannot be mitigated by engineered features,
but only by the exercise of intelligence, care, common sense, and experience i n anticipating the eff ects and result s of
activating the hoist’s controls. Use this guidance in conjunction with ot her warnings, ca utions, and notice s in this manual
to govern the operation and use of your overhead hoist.
4.2 Shall’s and Shall Not’s for Operation
Improper operation of a hoist can create a potentially hazar dous
situation which, if not avoided, could result in death
and substantial property damage. To avoid such a potentially
hazardous situation THE OPERATOR SHALL:
• NOT lift more than rated loa d for the hoist.
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
• NOT
operate unless load is centered under hoist.
use damaged hoist or hoist that is not working
properly.
use hoist with twisted, kinked, damaged, or
worn chain.
use hoist if the bottom hook is capsi zed
(double fall hoists - see Section 3.2).
use the hoist to lift, support, or transport
people.
lift loads over people.
apply load unless load chain is prope rly
seated in the load sheave (and idle sheave for h oist
with two chain falls).
use the hoist in such a way that could result in
shock or impact loads being applie d to the hoist.
attempt to lengthen the load chain or repair
damaged load chain.
operate hoist when it is restricted from forming
a straight line from hook to hook in the direction of
loading.
use load chain as a sling or wrap load chain
around load.
apply the load to the tip of the hook or to the
hook latch.
apply load if binding prevents equal loading
on all load-supporting chains.
operate beyond the limits of the load chain
travel.
operate hoist with missing/damaged chain
springs, cushion rubbe rs, stopp ers or st riker p lates.
WARNING
• NOT
unless specific precautions have been taken.
• NOT
electrical or welding ground.
• NOT
live welding electrode.
• NOT
• NOT
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 l oad.
• Make sure load slings or other approved singl e
attachments are properly sized, rigged, and seated
in the hook saddle.
• Take up slack caref ully - make sure load is
balanced and load-holding action is secu re before
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 h oist and rem ove
the hoist from service until the malfunction or
unusual performance is resolved.
• Make sure hoist limit switches function properly.
• Warn personnel before lifting or m oving a load.
• Warn personnel of an approaching load.
or serious injury,
leave load supported by the hoist unattended
allow the chain, or hook to be used as an
allow the chain, or hook to be touched by a
remove or obscure the warnings on the hoist.
operate a hoist on which the safety placa rds
19
Page 20
CAUTION
Improper operation of a hoist can create a potentially hazar dous
situation which, if not avoided, could result in minor
, or property damage. To avoid such a potentially hazardous
injury
situation THE OPERATOR SHALL:
• Maintain a firm footing or be otherwise secure d
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 latche s are closed a nd not
supporting any parts of the load.
• Make sure the load is free to move and will clea r all
obstructions.
• Avoid swinging the load or hook.
• Make sure hook travel is i n the same di rection as
shown on controls.
• Inspect the hoist regularly, replace damaged or
worn parts, and keep appropriate records of
maintenance.
or moderate
• Use the hoist manufacturers recommended parts
when repairing the unit.
• Lubricate load chain per hoi st manufacture r’s
recommendations.
• NOT
• NOT
• NOT
• NOT
• NOT
use the hoist load limiting or warning device to
measure load.
use limit switches as routine operating stops.
They are emergency devices only.
allow your attention to be diverted fro m
operating the hoist.
allow the hoist to be subjected to sharp
contact with other hoists, structures, or object s
through misuse.
adjust or repair the hoist unless qualified to
perform such adjustments or repairs.
4.3 Hoist Controls
4.3.1 For hoists mounted to motorized trolleys follo w the control inst ruction in cluded in the t rolley's Ow ner's
Manual.
4.3.2 Pendant Control – When using the pendant control depress the up button to rai se the hoist or the d own
button to lower the hoist as shown in Figure 4-1 below. To stop motion rele ase the buttons.
4.3.3
CAUTION
Make sure the motor complet ely stops b efore rev ersing dire ction.
Figure 4-1 Push Button Pendant Control
20
Page 21
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 – a person selected o r assigned as being competent to p erform the spe cific duties
to which he/she is assigned.
Qualified Person – a person who, by possession of a re cognized degree o r certificat e of professional
standing, or who, by extensive knowledge, train ing, and experience, has successf ully demonstrated the
ability to solve or resolve problems relating to the subject matter and work.
Normal Service – that distributed service whi ch involves ope ration with randomly dist ributed loads
within the rated load limit, or uniform loads less than 65% of rated load for not more than 25% of the
time.
Heavy Service – that service which involves operation within the rated loa d limit which exceeds n ormal
service.
Severe Service – that service which involves n ormal or heavy se rvice with abno rmal operati ng
conditions.
5.2 Inspection Classification
5.2.1 Initial Inspection – prior to initial use, all new, altered, or modifi ed hoists shall be inspect ed by a
designated person to ensure compliance with the applicable pr ovisions of this manual.
5.2.2 Inspection Classification – the inspection procedure for hoists in regular service is divided into two
general classifications based upo n the intervals at which i nspection sho uld be perform ed. The intervals
in turn are dependent upon the nature of the criti cal components of the hoist and the deg ree of their
exposure to wear, deterioration, or malfunction. The two general classificati ons are herein designated
as FREQUENT and PERIODIC, with respectiv e intervals betwee n inspections as de fined below.
5.2.3 FREQUENT Inspection – visual examinations by the operator o r other designated perso nnel with
intervals per the following criteria:
Normal service – monthly
Heavy service – weekly to monthly
Severe service – daily to weekly
Special or infrequent service – as reco mmended by a qualified person bef ore and after ea ch
occurrence.
5.2.4 PERIODIC Inspection – visual inspection by a designat ed person with interval s per the followin g
criteria:
Normal service – yearly
Heavy service – semiannually
Severe service – quarterly
Special or infrequent service – as reco mmended by a qua lified person bef ore the first such
occurrence and as directed by the qualified perso n for any subsequ ent occurrences.
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5.3 Frequent Inspection
5.3.1 Inspections should be made on a FREQUENT basis in accordance with Table 5-1, “F requent
Inspection.” Included in these FREQUENT Inspe ctions are observ ations made during op eration for
any defects or damage that might appear between Periodic Inspections. Evaluation and resolution of
the results of FREQUENT Inspections shall be ma de by a designat ed person such that the hoist is
maintained in safe working condition.
All functional operating mechanisms fo r maladju stment and unusual sounds.
Operation of limit switch and associated compone nts
Hoist braking system for proper operation
Hooks 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 3.2 a nd 6.4
5.4 Periodic Inspection
Table 5-1 Frequent Inspection
5.4.1 Inspections should be made on a PERIODIC basis in accorda nce with Table 5-2, “Periodic Inspection.”
Evaluation and resolution of the results of PERIO DIC Inspe ctions shall be mad e by a designate d
person such that the hoist is maintained in saf e 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-a ssembled and pri or to its return to servi ce.
Table 5-2 Periodic Inspection
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, gea rs, bearings, pi ns and rolle rs.
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 idle r sheaves.
Evidence of excessive wear on motor or load bra ke.
Electrical apparatus for signs of pitting or any deteri oration of visible contro ller contac ts.
Evidence of damage of supporting structure or trolley, if used.
Function labels on pendant control stations for le gibility.
Warning label properly attached to the hoist a nd legible (see Se ction 1.2).
End connections of load chain.
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5.5 Occasionally Used Hoists
5.5.1 Hoists that are used infrequently shall be inspe cted as follows prior t o placing i n service:
Hoist Idle More Than 1 Month, Less Than 1 Year: Inspect per FREQUENT Inspection criteria in
Section 5.3.
Hoist Idle More Than 1 Year: Inspect per PERIODIC Inspection criteria in Section 5.4.
5.6 Inspection Records
5.6.1 Dated inspection reports and record s shoul d be maintained at tim e interval s correspo nding to those
that apply for the hoist’s PERIODIC interval pe r Section 5.2.4. These record s should be stored where
they are available to personnel involved with the inspecti on, maintenance, or op eration of the hoist.
5.6.2 A long range chain inspection program sho uld be established and should inclu de records of
examination of chains removed from service so a relationship can b e establishe d between vi sual
observation and actual condition of the ch ain.
5.7 Inspection Methods and Criteria
5.7.1 This section covers the inspection of specific items. T he list of items in this section i s based on tho se
listed in ANSI/ASME B30.16 for the Frequent and Periodic Inspection. In accordance with ANSI/ASME
B30.16, these inspections are not intended to involve di sassembly of the hoist. Rath er, disassembly for
further inspection would be required if frequent or periodic inspection re sults so indi cate. Such
disassembly and further inspection shou ld only be performed by a qualified person t rained in the
disassembly and re-assembly of the hoist.
Table 5-3 Hoist Inspection Methods and Criteria
Item Method Criteria Action
Functional operating
mechanisms.
Visual, Auditory Mechanisms should be properly adjusted and
should not produce unusual sounds when
operated.
Limit Switch Function Proper operation. Actuation of limit switch should
stop hoist.
Limit Lever
Assembly
Braking System
Operation
Visual, Function Lever should not be bent or significantly worn and
should be able to move freely.
Function Braking distance with rated capacity should not
exceed 3% of the lifting speed (approximately two
chain links).
Hooks - Surface
Condition
Hooks - Fretting
wear
Visual Should be free of significant rust, weld splatter,
deep nicks, or gouges.
Measure The "u" and "t" dimensions should not be less
than discard value listed in Table 5-4
Hooks - Stretch Measure The "k" dimension shoul d not be greate r than
1.15 times that measured and recorded at the
time of purchase (See Section 3.6). If recorded
"k" values are not available for hooks when ne w,
use nominal "k" values fromTable 5-4.
Repair or replace
as required.
Repair or replace
as required.
Replace.
Repair or replace
as required.
Replace.
Replace.
Replace.
Hooks - Bent Shank
or Neck
Visual Shank and neck portions of hook shou ld be free
of deformations.
23
Replace.
Page 24
Table 5-3 Hoist Inspection Methods and Criteria
Item Method Criteria Action
Hooks - Yoke
Assembly
Hooks - Swivel
Bearing
Hooks - Idle Sheave
and Axle (Bottom
Hook on Double Fall
Hoist)
Hooks - Hook
Latches
Load Chain Surface Condition
Visual Should be free of significant rust, weld splatter,
nicks, gouges. Holes should not be elongated,
fasteners should not be loose, and there should
be no gap between mating parts.
Visual, Function Bearing parts and surfaces shoul d not show
significant wear, and should be free of dirt, grime
and deformations. Hook should rotate freely with
no roughness.
Visual, Function Pockets of Idle Sheave should be free of
significant wear. Idle Sheave surfaces should be
free of nicks, gouges, dirt and grime. Bearing
parts and surfaces of Idle Sheave and Axle
should not show significant wear. Idle Sheave
should rotate freely with no roughness or
significant free play.
Visual, Function Latch should not be deformed. Attachment of
latch to hook should not be loose. Latch spring
should not be missing and should not be weak.
Latch movement should not be stiff - when
depressed and released latch should snap
smartly to its closed position.
Visual Should be free of rust, nicks, gouges, dents and
weld splatter. Links should not be deformed, an d
should not show signs of abrasion. Surfa ces
where links bear on one another should be free of
significant wear.
Tighten or replace
as required.
Clean/lubricate, or
replace as required.
Clean/lubricate, or
replace as required.
Replace.
Replace.
Load Chain - Pitch
and Wire Diameter
Load Chain Lubrication
Load Chain Reeving
Chain Container
(optional)
Housing and
Mechanical
Components
Measure The "P" d imension sho uld not be greater than
maximum value listed in Table 5-5. The "d"
dimension should not be less than minimum value
listed in Table 5-5.
Visual, Auditory Entire surface of each chain link should be coated
with lubricant and should be free of dirt and grime.
Chain should not emit cracking noise wh en
hoisting a load.
Visual Chain should be reeved properly through Load
Sheave (and Idle Sheave for double fall hoist) refer to Section 6.4. Chain, Chain Springs,
Cushion Rubbers, Striker Plates, and Stoppers
should be installed properly - refer to Se ction 3.2.
Visual Container should not be damaged. Brackets
should not be deformed or missing.
Visual, Auditory,
Vibration,
Function
Hoist components including load blocks,
suspension housing, chain attachment s, clevises,
yokes, suspension bolts, shafts, gears, bearings,
pins and rollers should be free of cra cks,
distortion, significant wear and corrosion.
Evidence of same can be detected visually or via
detection of unusual sounds or vibration duri ng
operation.
Replace. Inspect
Load Sheave (and
Idle Sheave for
double fall hoist).
Clean/lubricate
(see Section 6.0).
Reeve/Install chain
properly.
Replace.
Replace.
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Page 25
Table 5-3 Hoist Inspection Methods and Criteria
Item Method Criteria Action
Bolts, Nuts and
Rivets
Motor Brake Measure, Visual Motor brake gap should be adjusted to the
Visual, Check
with Proper Tool
Bolts, nuts and rivets should not be loo se. Tighten or replace
as required.
Adjust, Repair or
distance shown in Table 6-4 before measuring
the brake wear. Brake lining dimension “A”
Replace as
required.
should not be less than discard value list ed in
Table 5-6. Refer to Section 6.3 for gaining
access to motor brake and for adjustment and
inspection procedures. Braking surfaces should
be clean, free of grease/oil and should not be
glazed.
Contactor Contacts Visual Contacts should be free of significant pitting or
Replace.
deterioration. On hoists equipped with the
optional Count/Hour Meter check the contactor
cycles – refer toSection 6.1.
Load Sheave Visual Pockets of Load Sheave should be free of
Replace.
significant wear.
Cushion Rubber Visual Should be free of significant deformation. Replace.
Chain Springs Visual Chain springs should be not be defo rmed or
Replace.
compressed.
Pendant - Switches Function Depressing and releasin g push-butto ns should
make and break contacts in switch contact block
Repair or replace
as necessary.
and result in corresponding electrical continuity or
open circuit. Push-buttons should be interlocked
either mechanically or electrically to prevent
simultaneous energization of circuits for oppo sing
motions (e.g. up and down).
Pendant - Housing Visual Pendant housing should be free of cracks and
Replace.
mating surfaces of parts should seal with out gaps.
Pendant - Wiring Visual Wire connections to switches in pendant should
Tighten or repair
not be loose or damaged.
Pendant - Cord Visual, Electrical
Continuity
Surface of cord should be free from nicks,
gouges, and abrasions. Each conductor in cord
Replace.
should have 100% electrical continuity even when
cord is flexed back-and-forth. Pendant Co rd
Strain Relief Cable should absorb all of the load
associated with forces applied to the pendant.
Pendant - Labels Visual Labels denoting functions should be le gible. Replace.
Warning Labels Visual Warning La bels should be affixed to the hoist (see
Replace.
Section 1.2) and they should be legible.
Hoist Capacity Label Visual The label that indicates the capacity of the hoist
Replace.
should be legible and securely attached to the
hoist.
*These values are nominal since the dimension i s not controlled to a tol erance. The "k" dimension
should be measured when the hook is new - this becom es a reference mea surement. Subseq uent
measurements are compared to this reference to make determin ations about hoo k
deformation/stretch. See Section 5.7, “Hooks - Stretch”.
Brake must be properly adjusted before measuri ng "A". See Section 6.3
"A" Dimension - inch (mm)
Capacity Code
Standard Discard
003S, 005L
005S, 010L
010S, 020L, 030C
0.67 (17) 0.61 (15.5)
0.85 (21.5) 0.79 (20)
0.89 (22.5) 0.83 (21)
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6.0 Maintenance and Handling
6.1 Count/Hour Meter (Optional)
6.1.1 The optional Count/Hour (C/H) Meter located on the electrical control panel records the hoist's on time
and number of starts. To view the two values press t he button on the C/H Meter one time. The displ ay
will first show an "H" and a 4 digit number which is the hoist's total on ti me (up and down) in hours.
After 3 seconds the display will automatically change to a 6 digit number which i s the number of starts
of the hoist's down contactor. Refer to Figure 6-1.
Figure 6-1 Count/Hour Meter
6.1.2 Contactor – The C/H Meter can be used i n conjunction with th e amount of joggi ng to estimate wh en the
contactor(s) should be replaced. Jogging is when the pe ndant control buttons are pressed quickly and
repetitively to move the hook in small increments. Refer to Table 6-1.
Table 6-1 Criteria for Recommended Contactor Replacement
Jogging During Normal Operation Change Contactor After:
Rating Approximate Jogging Frequency
(starts)
Low Jogging is rare. 1,000,000
Medium During 25% of operations/lifts. 500,000
High During 50% or more of operations/lifts. 200,000
6.1.3 Gear Oil – The C/H Meter can be used in co njunction with the av erage load lifted by the h oist to
estimate when the gear oil should be changed. Refer to Table 6 -2.
Table 6-2 Criteria for Recommended Gear Oil Replacement
Loading During Normal Operation Change Gear Oil After:
Rating Average % of Rated Capacity
(hours)
Light 0 to 33% 360
Medium 33 to 67% 240
Heavy 67 to 100% 120
6.1.4 You are encouraged to use the Count/Hour Meter in conjunctio n with your experience with the hoist's
application and usage to develop a history upon which to gage and fine tune yo ur maintenanc e
program for the hoist.
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6.2 Lubrication
6.2.1 Load Chain
For longer life, the load chain should be lubricated.
The load chain lubrication should be accomplished after cle aning the load chain with an acid free
cleaning solution.
Apply Harrington lubricating grease (Part No. ER1BS1951) or an equivalent to industrial general
lithium grease, NLGI No. 0, to the bearing surfaces of the load chain li nks as indicated by th e
shaded areas in Figure 6-2. Also apply the grease to the areas of the load chain (sha ded areas in
Figure 6-2) that contact the load sheave. Insure that the grease is appli ed to the contact areas in
the load sheave pockets.
Machine or gear oil (grade ISO VG 46 or 68 oil or equivalent) m ay be used as an alternative
lubricant but must be applied more frequently.
Figure 6-2 Chain Grease Application
The chain should be lubricated every 3 months (more frequently fo r heavier usage or seve re
conditions).
For dusty environments, it is acceptable to substitute a dry lubricant.
6.2.2 Hooks and Suspension Components:
Hooks - Bearings should be cleaned and lubricated at l east once per year for norm al usage. Clea n
and lubricate more frequently for heavier usage or severe conditions.
Suspension Pins - Lubricate at least twice per year for normal u sage; more frequently for h eavier
usage or severe conditions.
6.2.3 Gear Box:
The oil level can be checked using the oil check hole on the sid e of the hoist body sh own in Figure
WARNING
prevent the friction clutch from working properly and may affect the a bility of the hoist to hold th e
load. Refer to Section 3.1 for the correct oil and quantity.
3-1. The oil level should be in accordance with Table 6-3 below.
Table 6-3 Criteria for Checking Hoist Gear Oil Level
Capacity Code Oil Level (Hoist at lev el position)
Up to and including 010M
Using an incorrect type/grade of gearbox oil or the wrong qua ntity of oil may
Min Max
½ “ below bottom
edge of check hole
Even with bottom
edge of check hole.
010S and Up
1“ below bottom
edge of check hole
29
Even with bottom
edge of check hole.
Page 30
Change gear oil at least once every 5 years. The oil should be changed mo re frequently
depending on the hoist's usage and operati ng environment. Refer to S ection 6.1.
Refer to Figure 3-1 and Table 3-1 to change the gear o il, remove both fill an d drain plugs and allow
the old oil drain completely. Replace the drain plug and refill the gear case with th e correct quantity
of new oil or until the oil level is within the range shown in Table 6-3.
NOTICE
6.3 Motor Brake
6.3.1 To keep your hoist working in optimum condition a nd prevent possible down time, it is recomme nded to
check your motor brake lining and adj ustment at regul ar intervals.
6.3.2 Motor Brake Unit Removal - Adjustment and inspection of the mot or brake requi res removal of the
motor brake unit from the hoist as an assembly.
1)
2) Refer to Figure 6-3.
3) Remove the four Fa n Cover bolts (A), Fan Cover (B), Fa n snap ring (C), and F an washer (D).
4) Pull the Fan (E) off the motor shaft using a wheel p uller if necessa ry.
5) Remove the four Mot or Cover A ssembly bolts (F ) and carefully pu ll the motor brak e unit (G) out of the
CAUTION
unloaded. To keep the load chain from mo ving, secure it by tying to gether the load an d no-load si des
directly under the hoist using a cord or wire.
hoist.
Dispose of the used oil in accordance with lo cal regulati ons.
Before proceeding disconnect the power supply and m ake sure the hoist is
G
F
E
D
C
B
A
Figure 6-3 Motor Brake
6.3.3 Brake Gap (G) - The Brake Gap should be measu red between the Brake Drum a nd Pull Rotor.
Adjustment of the Brake Gap is accomplished by turning the Adj ustment Nut in t he center of th e Motor
Cover as shown in the figure with Table 6-4. Do this as follows:
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Page 31
Bend the tab of the Lock Washer away from the Adjusting Nut so that the Adj usting Nut can b e rotated.
1)
2) Using a spanner wrench and a feeler gauge, rotate the A djusting Nut to attain th e proper Brake Gap
per Table 6-4.
3)After the Brake Gap is set, secure the Adjusting Nut by bending one of the tabs of the Lock Washer into
a slot in the Adjusting Nut. If necessary rotate the Adjusting Nut clockwise (tightening) to line up the tab
with the slot.
4)If the proper brake adju stment cannot be achieved, di sassemble the m otor brake and inspect all motor
brake parts. Replace the Brake Drum and/or Motor Cover if n ecessary.
Table 6-4 Motor Brake Gap
Capacity Code
003S, 005L, 005S,
010L, 010S, 020L, 030C
Brake Gap (G)
inch (mm)
0.020 (0.5)
6.3.4 Brake Lining Inspection –The brake lining is designed for a lon g life and shoul d provide years of
trouble-free service. If the brake lining is being insp ected due to ex cessive load chain drift during
operation (see Section 5.7), disassemble the motor brake and inspect all motor brake parts. Bra king
surfaces should be clean, free of grease/oi l and should n ot be glazed. Re place the Brake Dru m and/or
Motor Cover if necessary. For normal inspecti ons, the Brake Lining a nd Motor Cover we ar should be
measured as follows.
1) Adjust the Brake Gap pe r Section 6.3.3 before measuring the Brake Lining and Motor Cover wear.
2) Refer to Ta ble 5-6.
3) Measure the distan ce "A" using calipers a nd a straight edge. Pla ce the straight edge acro ss the edge
of the motor cover and measure from the straight edge to the face of t he Pull Rotor.
4)Compare the measurem ent with the values liste d in Table 5-6. Replace the B rake Drum and/or Mot or
Cover if the "A" measurement is smaller than the discard limit.
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6.3.5 Motor Brake Unit Installation - After the brake is properly adjusted and inspected, carefully replace the
motor brake unit back into the hoist. Be sure to reseal the Motor Cover to motor frame surface usin g a
small bead of liquid (hi-temperature) sealant. Refer to Secti on 6.3.2 and reassemble the parts in
reverse order of removal.
6.4 Load Chain
6.4.1 Lubrication and Cleaning – refer to Section 6.2.
6.4.2 Load Chain Replacement:
1)
2)
3)
4) Remove all chain co mponents incl uding the Bottom Hoo k Set Assembly, Stoppe rs, Cushion Rubbers,
5) Using a C-link, attach th e new chain to the end link of the old chain on the no -load side. The e nd link of
6) Operate the hoist down t o move the chain thou gh the hoist body. Stop when a sufficient amou nt of
7) Single fall hoists - Attach the chain components (step 4 above) to the chain. Refer to Section 3.2 for
CAUTION
following procedures.
WARNING
size, grade and construction as the o riginal chain. T he new load chain must hav e an odd number of
links so that both its end links have the same orientation. If the load chain is being replace d due to
damage or wear out, destroy the old chain to preve nt its reuse.
CAUTION
Chain Guides and Idle Sheaves, and replace part s if necessary.
Chain Springs, Striker Plates, Chain Pin and End Wire (o r End Suspender) from th e chain for reuse on
new chain. Inspect and replace any damaged or worn part s.
the new load chain should be connected so that the welded porti ons of the load chai n's standin g links
are oriented to the outside as they pass over the sheave. Ref er to Figure 6-4.
new chain is accumulated on the load side .
the proper locations.
The hoist must be properly powered and operational in orde r to perform the
Be certain that the replacement chain is obtained from Harrington and is the exa ct
When replacing load chain, check for wear on mati ng parts, i.e. Load S heave,
8)Double falls (0 30C) - Fee d the end link on the load si de of the new ch ain through the required cha in
components (step 4 above) and the bottom hook’s Idle Sheave. Attach the remai ning chain
components to the chain referring to Se ction 3.2 for the prop er locatio ns. Connect the e nd link to the
top connection yoke with the chain pin, slotted nut and cotter pin. Ensure that chain remai ns free of
twists. Refer to Figures 3-6 and 3-7.
9)
10) After installation has been completed, perform steps outlined in Section 3.6"Preoperational Checks
WARNING
properly installed. Refer to Section 3.2.
and Trial Operation".
Make sure Stoppers, Cushion Rubb ers, Chain Spring s and Striker Plat es are
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Page 33
Figure 6-4 Chain Replacement
6.5 Friction Clutch
6.5.1 Friction Clutch – If abnormal operation or slippage oc curs do NOT attempt to disa ssemble or adju st the
Friction Clutch. Replace the worn or malf unctioning Friction Clut ch as an assembly wi th a new, factory
adjusted part.
6.6 Storage
6.6.1 The storage location should be clean and dry.
6.7 Outdoor Installation
6.7.1 For hoist installations that are outdo ors, the hoist MUS T BE covered and prote cted from the weather at
all times.
6.7.2 Possibility of corrosion on components of the hoist increases for installations where salt air and high
humidity are present. The hoist may require more frequent lubrication. Make freq uent and regular
inspections of the unit's condition and operation.
6.7.3 For hoist installations where temperature v ariation s introduce condensation int o the hoist ad ditional
inspection and more frequent lubrication may be requi red.
6.7.4 Refer to Section 2.1.3 for allowable environme ntal condition s.
6.8 Operational Environment
6.8.1 Non-conforming environment
A non-conforming environment is defined as one with any o r all of the following.
• Explosive gases or vapor.
• Organic solvents or volatile powder
• Excessive amounts of powder and dust of general substances
• Excessive amount of acids or salts.
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Page 34
7.0 Troubleshooting
WARNING
HAZARDOUS VOLTAGES ARE PRESENT IN THE HOIST AND IN CONNECTIONS BETWEEN
COMPONENTS.
Before performing ANY troubleshooting on the equipm ent, de-energize the supply of electricity to the e quipment,
and lock and tag the supply device in the de-energi zed position. Ref er to ANSI Z244.1, “Perso nnel Protection Lockout/Tagout of Energy Sources.”
Only Trained and competent personnel shoul d inspect and repai r this equipment.
Table 7-1 Troubleshooting Guide
Symptom Cause Remedy
Hoist moving in wrong
direction
Power supply reversed
phased
Improper electrical
connections
Loss of power
Switch the 2 power supply cord wires at the power source.
Refer to wiring diagram and che ck all conn ections.
Check circuit breakers, switches, fuses and connections on power
lines/cable.
Hoist will not operate
Wrong voltage or
frequency
Hoist overload Redu ce load to within rated capa city of hoist.
Motor overheated and
optional thermal
overload protector has
tripped
Improper, loose, or
broken wire in hoist
electrical system
Brake does not
release
Faulty magnetic
contactor
Defect in control
transformer
Motor burned out
Check voltage and frequency of power supply against th e rating
on the nameplate of the motor.
See Trouble Shooting Problem "Motor or brake ove rheating".
Shut off power supply, check wiring connections on hoist co ntrol
panel and inside push-button pendant.
Check motor brake adjustment for proper clearance.
Check coil for open or short circuit. Check all con nections in the
control circuit. Check for open contactors. Re place as neede d.
Check transformer coil for sign s of overheating. Di sconnect
transformer and check for open windi ng.
Replace motor frame/stator, shaft/rotor, and any other damaged
parts.
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Page 35
Symptom Cause Remedy
Hoist will not operate
(continued)
Table 7-1 Troubleshooting Guide
Faulty Start Switch
Faulty Start
Capacitor(s)
Disconnect Start Switch from motor. The resistance between the
Start Switch terminals 2 and 3 should be greater th an 500K ohms.
If not, consult factory.
Check capacitor(s) for open or short circuit. Check connection s.
Replace as needed.
Hoist lifts but will not
lower
Hoist lowers but will
not lift
Down circuit open
Broken conductor in
pendant cord
Faulty magnetic
contactors
Faulty switch in
pendant
Hoist overloaded Reduce load to within rated capacity of hoist.
Low voltage in hoist's
power supply
Up circuit open
Broken conductor in
pendant cord
Faulty magnetic
contactor
Faulty switch in
pendant
Check circuit for loose connections. Check down side of limit
switch for malfunction.
Check the continuity for each cond uctor in the cable. If one is
broken, replace entire cable.
Check coils for open or short ci rcuit. Check all connectio ns on
motor circuit. Check for burned contacts. Repla ce as needed.
Check electrical continuity. Check elect rical connection s.
Replace or repair as needed.
Determine cause of low voltage and bring to within plu s or minus
10% of the voltage specified on the motor nameplat e. The
voltage should be measure at the hoist cont actor.
Check circuit for loose connections. Check up side of limit switch
for malfunction.
Check the continuity of each condu ctor in the cable. If o ne is
broken, replace entire cable.
Check coils for open or short ci rcuit. Check all conn ections on
motor circuit. Check for burned contacts. Repla ce as needed.
Check electrical continuity. Check elect rical connection s.
Replace or repair as needed.
Hoist will not lift rated
load or does not have
the proper lifting speed
Load drifts excessively
when hoist is stopped
If abnormal operation or slippage occurs do NOT attempt to
Faulty friction clutch
Hoist overloaded Reduce load to within rated capacity.
Low voltage in hoist's
power supply
Brake drags Check motor brake adjustment for proper clearance.
Faulty friction clutch
Motor brake not
holding
disassemble or adjust the Friction Clutch. Replac e the worn or
malfunctioning Friction Clutch as an assembly with a new, factory
adjusted part.
Determine cause of low voltage and bring to within plu s or minus
10% of voltage specified on the motor nameplate. Th e voltage
should be measured at the hoist contactor.
If abnormal operation or slippage occurs do NOT attempt to
disassemble or adjust the Friction Clutch. Replac e the worn or
malfunctioning Friction Clutch as an assembly with a new, factory
adjusted part.
Clean and inspect brake lining. Check brake adju stment for
proper clearance.
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Page 36
Table 7-1 Troubleshooting Guide
Symptom Cause Remedy
Excessive load Reduce load to wit hin rated ca pacity of hoist.
Excessive duty cycle Reduce frequency of lifts.
Motor or brake
overheating
Hoist operates
intermittently
Wrong voltage or
frequency
Check voltage and frequency of power supply against th e rating
on the nameplate on the motor.
Brake drags Check brake adjustment for proper clearance.
Above an ambient temperature of 140°F, the frequency of hoist
Extreme external
heating
operation must be reduced to avoid overheating of the motor.
Special provisions should be made to ventilate the hoist or
otherwise shield it from the heat.
Collectors making poor
contact
Contactor contacts
arcing
Loose connection in
circuit
Broken conductor in
Pendant Cord
Check movement of spring loaded arm, weak sprin g, connections,
and shoe. Replace as needed.
Check for burned contacts. Replac e as needed.
Check all wires and terminal s for bad co nnections. Replace as
needed.
Check for intermittent continuity in each con ductor the Pendant
Cord. Replace entire Pendant Cord if continuity i s not constant.
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8.0 Material Safety Data Sheets
NOTICE
The SNER hoists are shipped new with the oil for the gear box i n separate container(s). In complia nce with OSHA
regulations, Material Safety Data Sheets (MSDS) have been provi ded for the gear oi l that is provided in this
separate container.
8.1 SNER Model Gear Box Oil Material Safety Data Sheet (MSDS)
SECTION I
EMERGENCY
MANUFACTURER’S NAME
Nippon Oil Co., Ltd. 03-3502-9161 03-3502-1111
ADDRESS
3-12, Nishi Shimbashi 1-chome, Nimat o-ku, Tokyo, 105 Japa n
DATE PREPARED SIGNATURE OF PREPARER
Oct. 14, 1992 Signature on file at Harrington Hoists, Inc.
TRADE NAME AND SYNONYMS CHEMICAL NAME AND SYNONYMS
BONNOC M 260 Industrial gear oil
WARNING STATEMENT
CAUTION: Prolonged or repeated inhalation of fume s or contact with skin can be harmful.
SECTION II TYPICAL COMPOSITION
TELEPHONE NUMBER
TELEPHONE NUMBER
FOR INFORMATION
Base oil: (highly refined mineral oil) >94%
Additives: (Oxidation inhibitor, Rust inhibitor, Emulsion breaker, Antiwear A gent,
Antifoamer, Friction modifier)
Notes: These materials are listed in TSCA chemical sub stance inventory. T he carcinogen s that are
listed in federal OSHA, IARC, NTP are not used in this product.
SECTION III EXPOSURE STANDARD
No OSHA exposure or Threshold Limit Value (TLV) has been established for this materi al. The suggested TLV is 5
3
mg/m
for a daily 8-hour exposure.
This is the OSHA exposure standard and the TLV (1990-1991) for mineral oil mists.
<6%
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SNER Model Gear Box Oil Material Safety Data Sheet (MSDS) - continued
SECTION IV OCCUPATIONAL CONTROL PROCEDURES
Eye protection: Chemical type goggles or face shield optional.
Skin protection: Avoid prolonged or frequently repeated skin contact with wearing
impervious protective clothing including gloves.
Respiratory protection: No special respiratory protection is normally required.
Ventilation: No special ventilation is usually necessary. However, if operating condition
create high airborne concentrations of this mate rial, special ventilation may
be needed.
Other clothing and equipment: No special clothing and equipment is usually necessary.
Work practices, hygienic practices: No information is avail able.
Other handling and storage requi rements: No information is avail able.
Protective measures during maintenance
contaminated equipment: No information is available.
SECTION V HEALTH HAZARD INFORMATION
SYMPTOMS OF OVEREXPOSURE FOR EACH POTENTIAL ROUTE OF EXPOSURE
Inhalation: Not expected to be acutely toxic by inhalation.
Skin: Expected to cause no more than minor skin irritation, but prolonged o r frequently
repeated skin contact may be harmful.
Eyes: Expected to cause no more than minor irritation.
Absorption through skin: No information is available.
Ingestion: Not expected to be acutely toxic by ingestion.
HEALTH EFFECTS OR RISK FROM EXPOSURE
Acute: No information is available.
Chronic: No information is available.
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE
No information is available.
SECTION VI EMERGENCY AND FIRST AID PROCEDURES
Eyes: Wash eyes with fresh water for at least 15 minutes. If irritation continue s, see a doctor.
Skin: Wash skin thoroughly with soap and water. Launder contaminated clot hing.
Inhalation: None considered necessary.
Ingestion: If swallowed, give a large amount of water to drink, make person vomit and call a doctor.
Sensitization property: Unknown
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SNER Model Gear Box Oil Material Safety Data Sheet (MSDS) - continued
SECTION VII MEDIAN LETHAL DOSE (LD
)
50
Oral: N.D. ; Believed to be greater than 5g/kg
(rat) ; Practically non-toxic
Dermal: N.D. ; Believed to be greater than 3g/kg
(rabbit) ; Practically non-toxic
SECTION VIII FIRE PROTECTION INFORMATION
Flash Point ºC 240
Autoignition Temp. ºC N. D.
Flammability Limits N. D.
Extinguishing Media: Carbon Dioxide (CO2), Dry chemical foam, Water fog, or spray.
SECTION IX REACTIVITY DATA
Stability: X Stable Unstable
Conditions to avoid: Do not store at high temperature.
Incompatibility (materials to avoid): May react with strong oxidizing materials.
Hazardous polymerization: May occur X Will not occur
SECTION X REQUIREMENTS FOR TRANSPORTATION, HANDLING, AND STORAGE
Minimum feasible handling temperatures should be mai ntained.
Periods of exposure to high temperatures should be minimized.
Water contamination should be avoided.
SECTION XI SPILL, LEAK, AND DISPOSAL PROCEDURES
PROCEDURES IN CASE OF BREAKAGE OR LEAKAGE
Wipe up or absorb on suitable material and shovel up.
WASTE DISPOSAL METHOD
Place contaminated materials in disposabl e containers and b ury in an approved dum ping area.
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SNER Model Gear Box Oil Material Safety Data Sheet (MSDS) - continued
SECTION XII CHEMICAL AND PHYSICAL PROPERTIES
Density 15ºC g/cm3 0.900
Viscosity C5t @40ºC 260
Solubility Insoluble in water
Boiling point N. D.
Evaporation rate N. D.
Vapor pressure mmHg N. D.
Vapor Density N. D.
PH of undiluted product N. D.
Percent Volatile by volume N. D.
Appearance Green colored liquid
Odor Little odor
N. D. – not determined
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8.2 SNER Model Load Chain Grease Material Safety Data Sheet (MSD S)
Effective date: November 9, 1999 MSDS No. 601008
SECTION 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
COMPANY IDENTIFICATION NIPPON MITSUBISHI OIL CORPORATION
3-12, Nishi Shimbashi 1-chome, Minato- ku, Tokyo, 105 -8412, Japan
EMERGENCY TELEPHONE NUMBER: +81-3-3502-9168
TELEPHONE NUMBER FOR INFORMATION: +81-3-3502-1111
FAX NUMBER FOR INFORMATION: +81-3-3502-9365
PRODUCT NAME: EPNOC GREASE AP O
PRODUCT USE: Lubricating grease
SECTION 2. COMPOSITION/INFORMATION ON INGREDIENTS
COMPOSITION
#1 Highly refined petroleum oil, by definition, is considered hazardous according OSHA.
Because it carries the Threshold Limit Value (TLV) for mine ral oil mist.
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SNER Model Load Chain Grease Material Safety Data S heet (MSDS) - contin ued
SECTION 3. HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Warning statement:
Caution! Prolonged or repeated contact with skin may cause irritation i n some cases.
Precautionary Measures: Avoid breathing vapor and mist. Keep contain er closed.
Avoid contact with eyes, skin, and clothing.
Wash thoroughly after handling. Keep away from heat.
Potential health effect:
Eyes: May cause minor irritation.
Skin: May cause minimal skin irritation.
Inhalation: Vapor or mist, in excess of permissible concentrations, or in unusually high
concentrations generated from spraying, heating the m aterial, or as from exposure i n
poorly ventilated areas or confined spaces, may cause ir ritation of the nose a nd throat,
headache, nausea and drowsiness.
Ingestion: May cause abdominal discomfort, nausea or diarrhea.
Sensitization properties: Unknown
Chronic Properties: If prolonged exposure occurs, nausea, headache, d iarrhea, and phy sical discomfort.
Other remarks: None
SECTION 4. FIRST AID MEASURES
Eyes: Flush immediately with water for at least 15 minutes. Get immediate me dical attention.
Skin: Wash with soap and water. Get medical attention if irritation d evelops. Launde r
contaminated clothing before reuse.
Inhalation: Remove exposed person to fresh air if adverse effects are observed.
Ingestion: Do not make person vomit unless directed to do so by medical personnel.
Note to physician: Treat symptomatically.
SECTION 5. FIRE FIGHTING MEASURES
Flash point (Typical), ºC: Not Determined
Autoignition tempt., ºC: Not Determined
Flammability limits: Not Determined
Extinguishing media: Carbon Dioxide (CO2), dry chemical, or foam.
Special fire fighting procedures: Recommend wearing self-contained breathin g apparatus. Wate r may cause
splattering. Material will float on water.
Unusual fire & explosion hazards: Toxic fumes, gases or vapors may evolve on burning.
Explosion date: Material does not have explosive properties.
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SNER Model Load Chain Grease Material Safety Data S heet (MSDS) - contin ued
SECTION 6. ACCIDENTAL RELEASE MEASURES
Procedures in Case of Accidental Relea se, Breakage, or Leakag e:
Stop the source of the leak or release. Clean up releases as soon as possible. Cont ain liquid to prevent fu rther
contamination of soil, surface water or groundwater. Clean up small spills using appropriate techniques such as
absorbent materials or pumping. Where feasible an d appropriate, rem ove contaminated so il. Follow prescribe d
procedures for reporting and responding to large r releases.
SECTION 7. HANDLING AND STORAGE
Do not weld, heat or drill container. Replace cap or bung. Emptied container still cont ains hazardous material which
may ignite with explosive violence if heated sufficiently.
Minimum feasible handling temperature should b e maintained.
Periods of exposure to high temperatures should be minimized.
Water contamination should be avoided.
CAUTION: Do not use pressure to empty drum or drum may ruptu re with explosive force.
SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Eye Protection: Chemical type goggles or face shield optional.
Skin Protection: Avoid prolonged or frequently repeated skin contact by wearing impe rvious
protective clothing including gloves.
Respiratory Protection: Wear a breathing mask.
Ventilation: No special ventilation is usually necessary. However, if operating
conditions create high air borne conc entrations of thi s material, spe cial
ventilation may be needed.
Other clothing and equipment: No special clothing o r equipment is usuall y necessary.
Work practices, hygienic practices: No information is avail able.
Other handling and storage requi rements: No information is avail able.
Protective measures during maintenance
of contaminated equipment: No data available.
SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES
Odor Slight odor
Appearance Light brown buttery
Boiling point ºC No Data Available
Solubility Insoluble in water
Density @15ºC, g/cm3 No data available
Dropping point ºC 186
Penetration worked @25ºC, 60W 359
DMSO Extract (Base oil) Mass % (IP 346) < 3
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SNER Model Load Chain Grease Material Safety Data S heet (MSDS) - contin ued
SECTION 10. STABILITY AND REACTIVITY
Stability: Stable
Condition to Avoid: See the Handling and Storage section for further details.
Incompatibility (materials to avoid): Acids. Oxidizing agents. Halogens and halogenated compounds.
Hazardous Polymerization: Will not occur.
Thermal decomposition: Smoke, carbon monoxide, aldehydes and other produ cts of incomplet e
combustion. Hydrogen sulfide and alkyl mercaptans and sulfides may also be
released. Under combustion conditions, oxides of the following elements will be
formed: Calcium, Sulfur, Zinc.
SECTION 11. TOXICOLOGICAL INFORM ATION
Acute Oral: No Data Available Believed to be greater than 5/kg (rat)
Practically non-toxic
Dermal: No Data Available Believed to be greater than 3 g/kg (rabbit)
Practically non-toxic
Carcinogen: OSHA This material is li sted as Group 3 by IARC
(Base oil) EU The classification as a carcinogen need not apply.
SECTION 12. ECOLOGICAL INFORMATION
Biodegradation: No Data Available
Environmental fate: This material is not expected to present any environmental problems other than those
Place contaminated materials in disposable conta iners and dispo se of in a manner co nsistent with appli cable
regulations. Contact local environmental or health autho rities for approved di sposal of this mate rial.
SECTION 14. TRANSPORT INFORMATION
The description shown may not apply to all shipping situations.
DOT Proper Shipping Name: Not applicable
IMDG Proper Shipping Name: Not applicable
ICAO Proper Shipping Name: Not applicable
TDG Proper Shipping Name: Not applicable
NFPA Proper name: Class 1.
UN Number: Not applicable
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SNER Model Load Chain Grease Material Safety Data S heet (MSDS) - contin ued
SECTION 15. REGULATION INFORMATION
The U.S. TSCA inventory: All components of this material are on the US TSCA inventory.
May require notification before sale in US.
No data available.
The EC EINECS inventory: All components of this material are on the EC EINECS inventory.
May require notification before sale in EC.
No data available.
Some components of this material are on the EC ELI NCS inventory.
The other components are on the EC EINECS inv entory.
The CANADA DSL inventory: All components of this material a re on the DSL inventory.
May require notification before sale in CANADA.
No data available.
The AUSTRALIA AICS inventory: All components of this material are on the AICS inventory.
May require notification before sale in AUSTRALIA.
No data available.
The KOREA TCCL inventory: All components of this material are o n the TCCL invent ory.
May require notification before sale in KOREA.
No data available.
The PHILIPPINE PICCS inventory: All components of this material are on the PICCS inventory.
May require notification before sale in PHILIPPINE.
No Data Available.
SECTION 16 OTHER INFORMATION
None
References:
1. Handbook of Toxic and Hazardous Chem icals and Carcinogens (2nd. ed.)
2. Registry of Toxic Effects of Chemical Substances (HIOSH, 1983)
Material safety data sheets are provided as reference informati on on the saf e handling of ha zardous or ha rmful material s
to companies using such materials. When referrin g to this data sheet, companies should remem ber that they must take
responsibility for implementing the proper measures for their own particular situati ons. This data sheet i s not a
guarantee of safety.
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9.0 Warranty
All products sold by Harrington Hoists, Inc. are warranted to be free from defects in material and
workmanship from date of shipment by Harrington for the following periods:
Manual Hoists, Trolleys, & Beam Clamps – 2 years
NER/ER Hoists Enhanced Features Models – 3 Years
Electric Hoists, Air Hoists & Trolleys, Crane Components – 1 year
Spare / Replacement Parts – 1 year
NER/ER “The Guardian” Electromagnetic Smart Technology Brake – 10 years
The product must be used in accordance with manufacturer’s recommendations and must not have
been subject to abuse, lack of maintenance, misuse, negligence, or unauthorized repairs or
alterations.
Should any defect in material or workmanship occur during the above time period in any product,
as determined by Harrington Hoist’s inspection of the product, Harrington Hoists, Inc. agrees, at its
discretion, either to replace (not including installation) or repair the part or product free of charge
and deliver said item F.O.B. Harrington Hoists, Inc. place of business to customer.
Customer must obtain a Return Goods Authorization as directed by Harrington or Harrington’s
published repair center prior to shipping product for warranty evaluation. An explanation of the
complaint must accompany the product. Product must be returned freight prepaid. Upon repair,
the product will be covered for the remainder of the original warranty period. Replacement parts
installed after the original warranty period will only be eligible for replacement (not including
installation) for a period of one year from the installation date. If it is determined there is no defect,
or that the defect resulted from causes not within the scope of Harrington’s warranty, the customer
will be responsible for the costs of returning the product.
Harrington Hoists, Inc. disclaims any and all other warranties of any kind expressed or implied as to
the product’s merchantability or fitness for a particular application. Harrington will not be liable for
death, injuries to persons or property or for incidental, contingent, special or consequential
damages, loss or expense arising in connection with the use or inability whatever, regardless of
whether damage, loss or expense results from any act or failure to act by Harrington, whether
negligent or willful, or from any other reason.
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10.0 Parts List
When ordering Parts, please provide the Hoist code number, lot number and se rial number lo cated on the Hoi st
nameplate (see fig. below).
Reminder: Per sections 1.1 and 3.6.4 to aid in ord ering Parts a nd Product Supp ort, record the Hoist co de number, lot
number and serial number in the spa ce provided on the cov er of this manu al.
SNER Series Nameplate
The parts list is arranged into the followi ng sections:
Section Page
10.1 Housing and Motor Parts……………………………………………….…… ………………………. .. 48