Page 1
EFFECTIVE: November 21, 2003
Owner's Manual
MOTORIZED
TROLLEY
SMR SERIES
MODELS MP1A & MP1B
1 Ton through 3 Ton Capacity
Code, Lot and Serial Number
WARNING
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
1.1 Terms and Summary
1.2 Warning Tags and Labels
2.0 Technical Information ………………………………………………………………………………………. 8
2.1 Specifications
2.2 Dimensions
3.0 Pre-operational Procedures………………………………………………………………………………...10
3.1 Assembly and Adjustment
3.2 Mounting Location
3.3 Installation of Trolley onto Beam
3.4 Electrical Connections
3.5 Pre-operational Checks and Trial Operation
4.0 Operation……………………………………………………………………………………………………24
4.1 Introduction
4.2 Shall’s and Shall Not’s for Operation
4.3 Trolley and Hoist Controls
5.0 Inspection……………………………………………………………………………………………………27
5.1 General
5.2 Inspection Classification
5.3 Frequent Inspection
5.4 Periodic Inspection
5.5 Occasionally Used Trolleys
5.6 Inspection Records
5.7 Inspection Methods and Criteria
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Section Page Number
6.0 Maintenance & Handling………………………………………………………………………………….. 33
6.1 Lubrication
6.2 Brake
6.3 Storage
6.4 Outdoor Installation
7.0 Troubleshooting……………………………………………………………………………………………. 34
8.0 Warranty……………………………………………………………………………………………………. 35
9.0 Parts List…………………………………………………………………………………………………….37
9.1 Electric Parts
9.2 Pendant Parts
9.3 Power Supply Parts
9.4 Side Plates and Suspension Parts
9.5 Motor Parts
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Important Information and Warnings
1.1 Terms and Summary
This manual provides important information 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
WARNING
CAUTION
NOTICE
Danger indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury, and property damage.
Warning indicates an imminently hazardous situation which, if not avoided, could result in death or
serious injury, and property damage.
Caution indicates a potentially hazardous situation which, if not avoided, may result minor or
moderate injury or property damage.
Notice is used to notify people of installation, operation, or maintenance information which is
important but not directly hazard-related.
CAUTION
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 trolley and hoist types. Therefore, all
instructions and parts information may not apply to any one type or size of specific trolley or hoist. Disregard those
portions of the instructions that do not apply.
Record your trolley’s Code, Lot and Serial Number 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 trolley.
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WARNING
Equipment described herein is not designed for and MUST NOT be used for lifting, supporting, or transporting 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.
Equipment described herein may be used in the design and manufacture of cranes or monorails. Additional
equipment or devices may be required for the crane and monorail to comply with applicable crane design 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 “Safety Standard for
Underhung Cranes and Monorails”.
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, trolleys and cranes, 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”.
Electrical equipment described herein is designed and built in compliance with Harrington's interpretation of
ANSI/NFPA 70, “National Electrical Code”. The system designer, system manufacturer, crane designer, crane
manufacturer, installer, or user is responsible to assure that the installation and associated wiring 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 limitations noted herein can result in serious bodily injury or death,
and/or property damage.
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DANGER
HAZARDOUS VOLTAGES ARE PRESENT IN THE CONTROL BOX, OTHER ELECTRICAL COMPONENTS,
AND CONNECTIONS BETWEEN THESE COMPONENTS.
Before performing ANY mechanical or electrical maintenance on the equipment, de-energize (disconnect) the main
switch supplying power to the equipment; and lock and tag the main switch in the de-energized position. Refer to
ANSI Z244.1, “Personnel Protection – Lockout/Tagout of Energy Sources”.
Only trained and competent personnel should inspect and repair this equipment.
NOTICE
It is the responsibility of the owner/user to install, inspect, test, maintain, and operate a trolley or hoist in accordance
with ANSI/ASME B30.16, “Safety Standard for Overhead Hoists”, OSHA Regulations and ANSI/NFPA 70, "National
Electric Code". If the trolley 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, “Safety Standard for Overhead
Hoists”, OSHA Regulations and ANSI/NFPA 70, “National Electric Code”. If the trolley is installed as 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 personnel.
If the trolley owner/user requires additional information, or if any information in the manual is not clear, contact
Harrington or the distributor of the trolley. Do not install, inspect, test, maintain, or operate this trolley unless this
information is fully understood.
A regular schedule of inspection of the trolley in accordance with the requirements of ANSI/ASME B30.16 should be
established and records maintained.
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1.2 Warning Tag and Labels
The warning tag illustrated below in Figure 1-1 is supplied with each trolley shipped from the factory. If the tag is not
attached to the pendant cord for your hoist/trolley, order a tag from your dealer and install it. Read and obey all warnings
attached to this trolley. Tag is not shown actual size.
front back
Figure 1-1 Warning Tag Attached to Trolley
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2.0 Technical Information
2.1 Specifications
2.1.1 Product Code for SMR Trolley Alone:
2.1.2 Product Code for SMR Trolley with SNER Series Electric Hoist:
Table 2-1 Trolley Specifications
Capacity
(Ton)
1 SMR010L/S 2.28 to 5.00
2 SMR020L/S 3.23 to 6.02
3 SMR030L/S 3.23 to 6.02
* Models MP1A are only available at 40 fpm. Models MP1B are available at 40 and 80 fpm.
Product
Code
Standard Beam
Flange Range
(in)
Optional Beam
Flange Range
(in)
5.01 to 6.02 OR
6.03 to 12.00
6.03 to 7.02 OR
7.03 to 12.00
6.03 to 7.02 OR
7.03 to 12.00
Min. Allowable
Radius for Curve
(in)
31.5 86
31.5 102
39.4
2.1.3 Operating Conditions and Environment
Temperature range: -4° to +104°F (-20° to +40°C)
Humidity: 85% or less
Enclosure Rating: Trolley Meets IP 55, Pendant Meets IP65
Supply Voltage: Standard 115/230V-1-60 (Single Phase)
Speed*: L=40 FPM, S=80 FPM.
Intermittent Duty Rating: 40% ED
Maximum Number Starts per Hour: 240
Short Time Duty Rating: 30 Minute
Output
(Hp)
0.54
Motor
Current Draw*
(amps)
115V 230V
Model:
MP1A=8.1
MP1B=6.2
Approx.
Net Weight
(lbs)
Model:
MP1A=4.1
MP1B=3.1
115
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2.2 Dimensions
Code b b' d e e' i j k m n r t
SMR010L/S 12.4 15.6 10.6 20.3 7.0 3.74 0.9 5.1 8.0 4.3 2.0 1.22
SMR020L/S 12.8 16.4 10.7 20.5 7.2 4.33 1.1 4.9 8.3 4.6 2.4 1.42
SMR030L/S 13.4 17.4 10.8 20.5 7.3 4.92 1.1 5.2 8.5 5.2 2.7 1.69
Table 2-2 Trolley Dimensions
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3.0 Pre-operational Procedures
3.1 Assembly and Adjustment
3.1.1 When the SMR trolley is combined with a hoist, follow and complete all pre-operational procedures
provided with the hoist. For Harrington SNER model hoists, follow the pre-operational procedures in
the SNER Owner's Manual in conjunction with all information provided in this section for mounting and
electrical connections.
3.1.2 In addition to the information and procedures provided in this section for the SMR trolley, there are
specific details for using SNER hoists with SMR trolleys. Special mounting and wiring considerations
must be taken if the trolley is used with a hoist other than an SNER model.
3.1.3
WARNING
Never attempt to hook mount a hoist directly to the Suspension Shaft on the SMR
trolleys up to and including 3 Ton. These trolleys are designed to be used with a suspender only and
do not have the vertical clearance required for a hook to fit between the Suspension Shaft and trolley
beam.
3.1.4 Preparing SNER hoists for use with SMR trolley.
¼ to 2 Ton SNER – The standard suspension configuration uses Suspender T which orients the hoist
perpendicular to the trolley beam. Optional two-piece suspension method uses a Connection Yoke
and Suspender G, which orients the hoist parallel to the trolley beam. If the hoist is not equipped with
Suspender T or the Connection Yoke from the factory, remove the Top Hook Assembly from the hoist
and install Suspender T or the Connection Yoke as follows:
1) Refer to Figure 3-1.
2) Remove the four Controller Cover socket head bolts and allow the cover to swing fully open.
3) Loosen the three or four captive screws holding the electrical component mounting Plate against
the main body of the hoist and swing the plate out to access the required components.
4) Loosen one of two Machine Screws attaching Plate A and remove the second Machine Screw.
Allow Plate A to rotate out from the retaining slot in the bottom side of the Connection Shaft. Pull
out the Connection Shaft and remove the Top Hook Assembly.
5) Remove the Hoist Fixing Shaft.
6) Place Suspender T or the Connection Yoke on the top of the hoist. Line up the holes for the
Connection Shaft and the Hoist Fixing Shaft and reinsert the shafts.
7) Reassemble the remaining hoist components in reverse order of disassembly.
8) If installing the Connection Yoke, place the Connection Yoke Rubber and Suspender G in the top
of the Connection Yoke. Attach Suspender G to the Connection Yoke with the Yoke Bolt, Slotted
Nut and Split Pin (cotter pin).
3 Ton (030C) SNER – The 3 Ton (030C) SNER hoists (double fall) always use a Connection Yoke.
The standard suspension configuration uses Suspender T which orients the hoist perpendicular to the
trolley beam. Suspender G is available as an option and orients the hoist parallel to the trolley beam. If
the hoist is not equipped with Suspender T or G from the factory, remove the Top Hook Assembly from
the Connection Yoke and install the Suspender T or G as shown in Figure 3-2.
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Optional
Hoist Fixing Shaft
(Retains Shaft)
Suspender G
Connection Yoke Rubber
Connection Yoke
Yoke Bolt
Connection
Shaft
Plate A
Split Pin
Slotted Nut
Suspender T
(Standard)
Machine Screw
& Spring Washer
Controller Cover Assembly
Figure 3-1 Installing Suspender T or Connection Yoke on SNER Hoists –
Up Through 1/4 to 2 Ton Capacity
Suspender T
(Standard)
Suspender G
(Optional)
Suspender T
(Standard)
Yoke Bolt
Connection Yoke
Suspender G
(Optional)
Slotted Nut & Split Pin
Note: Suspender G for 3 Ton (030C) connects directly to the Connection Yoke without the
Connection Yoke Rubber.
Figure 3-2 Installing Suspender T or G on 3 Ton (030C) SNER Hoists
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3.1.5 Trolley Assembly
1) Refer to Figure 3-3.
2) Remove the Shaft Stopper Pin, Side Plate S, and Spacers from the Suspension Shaft. For beam
flanges that are wider than the standard range, different suspension shaft and/or spacer
arrangements are provided. Refer to Table 3-1.
3) Insert the Suspension Shaft to Side Plate G and attach it with the Suspension Shaft Bolt, Slotted
Nut and Split Pin (cotter pin). Refer to Figure 3-5 and insure that correct Suspension Shaft holes
are used. Securely bend both branches of the Split Pin after insertion.
4) Referring to Figure 3-8, Table 3-1 and Table 3-2 install the inner adjusting Spacers and Suspender
on the Suspension Shaft. Use all of the Spacers provided with the trolley. If the beam width is not
listed in Table 3-2, use the next size smaller and make adjustments in accordance with Section
3.1.6.
5) Place Side Plate S into the Suspension Shaft.
6) Install the outer adjusting Spacers on the Suspension Shaft outside of Side Plate S. Insert the
Shaft Stopper Pin into Hole "A" so that Split Pin is to the left when seen from the front side of trolley
switch box. Temporarily install the split pin in the Shaft Stopper Pin and bend the split pin slightly to
hold it in place. The split pin should be fully bent after checking and attaining the proper beam
flange adjustment.
7) Insert the Trolley Fixing Shaft through Side Plate G, Suspender T and Side Plate S. Secure it to
Side Plate G with the two split pins. Securely bend both branches of the Split Pin after insertion.
Figure 3-3 Assembling the Trolley
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Page 13
Figure 3-5 Suspension Shafts
3.1.6 Adjusting the trolley width - After assembling trolley per Section 3.1.5, check the adjustment as follows:
1) Refer to Figure 3-6.
2) Make sure both side plates are spread fully outward and Measure Dimension "A". Dimension "A"
must be 1/8 to 3/16" greater than "B". For trolleys up through 3 Ton.
3) If "A" does not fall within the specified range, move spacers from inner to outer or from outer to
inner as necessary to obtain the proper "A" dimension, irrespective of the numbers in Table 3-2.
4) After obtaining the proper adjustment, install the Shaft Stopper Pin in Hole A, insert the Split Pin
into the Shaft Stopper Pin, and securely bend both branches of the split pin.
Side Roller
Flange
Inner Adjusting Spacers
Suspender
Side Plate S
Outer Adjusting Spacers
Shaft Stopper Pin
B
A
Figure 3-6 Adjusting the Trolley – Up Through 3 Ton Capacity
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Note: Inner Spacer rows on Table 3-2 list two numbers. First number is the quantity of spacers located on the
left side of the Suspender or Suspension Plates, second number is the quantity on the right side.
Example: 1 + 2
ç Adjusting Spacers on the right side (Side Plate S side)
é
Adjusting Spacers on the left side (Side Plate G side)
Figure 3-8 Spacers Arrangement
Table 3-1 Suspension Shaft Adjusting Spacers, and Suspension Shaft Bolt
Capacity
(Tons)
1
2 & 3
Flange Range
(in)
2.28 to 5.00 8 3
5.01 to 6.02 8 5
6.03 to 12.008922 Hole 1
3.23 to 6.02 8 3
6.03 to 7.02 8 5
7.03 to 12.008922 Hole 1
Total Number of Spacers Supplied
Thin Thick Fixing Thick L
2 Hole 2
2 Hole 1
2 Hole 2
2 Hole 1
Suspension
Shaft Bolt
Location
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Page 15
Table 3-2 Number of Adjusting Spacers
7
8
7
6
16
11
6
16
7
6
16
5
6
8
1
6
6
8
7
5
8
5
5
8
3
5
16
5
5
16
3
5
153 155 160 163 170 175 178
16
15
5
150
000000
222222
5
16
15
4
16
11
4
16
7
4
16
5
4
16
3
4
125 127 131 135 137 143
4
3
4
120
4
16
15
3
8
7
3
16
9
3
4
1
3
98 100 102 106 110 113
91
53187654207654243654203
82
33333333331111100111110
22200000000000000000000
3
8
16
7
15
2
2
2
8
1
5
2
2
16
5
2
(in)
Width
Beam
Flange
64 73 75 90 119 149
Spacer
Cap.
58
(mm)
Type
(Ton)
66 74 76
Inner 1+2 2+3 4+4 1+0 1+2 2+3 0 1+0 1+0 1+2 2+2 2+3 3+4 4+4 4+1 5+1 2+2 2+2 3+3 4+4 4+1 1+1 2+2 2+3 3+0 4+4 4+1
Inner 0+0 0+0 0+0 0+0 0+0 0+0 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+2 1+2 2+2 2+2 2+2 2+2 2+2 3+3 3+3 3+3 3+4 3+3 3+4
Inner
Inner 0+0 0+0 0+0 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Inner 1+2 2+3 3+4 0 1+0 1+1 1+2 2+2 3+3 4+4 1+0 1+1 1+2 2+2 3+3 4+0 4+1 1+1 1+2 2+2 3+3 4+4 1+4
Inner 0+0 0+0 0+0 0+0 0+0 0+0 0+0 0+0 0+0 0+0 1+1 1+1 1+1 1+1 1+1 1+2 1+2 2+2 2+2 2+2 2+2 2+2 3+2
Inner
Fixing
3
Inner 0+0 0+0 0+0 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Outer
Outer
L
Thick
Outer530753877543103244203643503
Thin
Outer333333111111110211111333232
Thick
Outer
Outer222000000000000000000000000
L
Fixing
Thick
Thin
1
Outer
Outer
Thick
2
and
15
Page 16
12
8
7
11
16
13
11
4
3
11
8
5
11
8
3
11
4
1
11
8
1
11
11
2
1
10
8
3
10
4
1
10
8
1
10
Table 3-2 Number of Adjusting Spacers (continued)
10
8
7
9
8
1
9
9
16
11
8
16
7
8
8
8
7
7
4
1
7
16
1
7
(in)
Beam
Flange
200 203 215 220 229 232 250 254 257 260 264 267 279 283 286 289 295 298 300 302 305
16
5
7
8
1
180 184
(mm)
Spacer
Cap.
181 185
Type
(Ton)
Inner 1+1 1+2 4+4 5+0 2+3 3+4 1+1 1+2 4+0 1+1 1+2 2+2 2+3 3+3 1+1 1+2 2+2 2+3 3+0 4+0 4+1 4+1 4+2
Outer65033165465432654354332
Thin
Inner 0+0 0+0 0+0 0+1 1+1 1+1 2+2 2+2 2+3 3+3 3+3 3+3 3+3 3+3 4+4 4+4 4+4 4+4 4+5 4+5 4+5 4+5 4+5
Outer99987755433333111100000
Thick
Inner 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Inner 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Inner 1+1 1+2 4+4 1+0 2+3 3+3 4+1 1+1 4+4 4+1 5+1 4+3 2+3 3+3 4+1 1+2 2+2 2+3 3+3 3+4 4+4 4+1 5+1
Inner 0+0 0+0 0+0 1+1 1+1 1+1 1+2 2+2 2+2 2+3 2+3 2+3 3+3 3+3 3+4 4+4 4+4 4+4 4+4 4+4 4+4 4+5 4+5
Inner 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Outer00000000000000000000000
Thick
Fixing
1
Outer00000000000000000000000
L
Outer65073236032132354321032
Thin
Outer99977765544433211111100
Thick
2
and
Outer00000000000000000000000
Fixing
3
Inner 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1 1+1
Thick
Outer00000000000000000000000
L
7
Width
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3.1.7 Counter Weight – For proper balance 1 Ton, SMR trolleys require a Counter Weight when installed on
a 3 7/8 inch or smaller beam flange. The Counter Weight mounts on the Suspension Shaft as shown
in Figure 3-9 and is held in place with a Bolt, Slotted Nut and Split Pin. The bolt is installed through
holes B and C. Make sure the weight is securely fastened to the shaft and that the split pin is properly
bent. All other trolley capacities do NOT require a counter weight.
Figure 3-9 Counter Weight installation for 1 Ton trolleys on
beam flanges 3 7/8 inch or smaller
3.2 Mounting Location
3.2.1
3.2.2
WARNING
supporting structure are adequate to support the trolley, hoist and its loads. If necessary consult a
professional that is qualified to evaluate the adequacy of the suspension location and its supporting
structure.
NOTICE
Prior to mounting the trolley (and hoist) ensure that the trolley beam and its
See Section 6.4 for outdoor installation considerations.
3.3 Installation of Trolley onto Beam
3.3.1 Assemble and adjust the trolley before attempting to install the trolley on the beam.
3.3.2 Preferred Method – Sliding the trolley connected with an electric chain hoist onto the traversing beam
from the beam end is the most convenient and recommended method. If the trolley can be mounted
from the end of the beam then: Remove the trolley end-stop from the beam and set the trolley on the
beam from the end. Securely re-install the trolley end stop on the beam.
3.3.3 Optional Method If the trolley cannot be mounted from the end of the beam, complete the installation as
follows:
1) Move the Shaft Stopper Pin to Hole B (see Figure 3-10).
2) Spread the trolley side plates apart.
3) Lift the trolley onto the beam so that the geared wheels (motor side of trolley) rest on the beam's
flange.
4) Hold Side Plate G securely so that it does not come off the beam then push the side plates
together so that all four wheels rest on the beam's flange.
5) Remove the Shaft Stopper Pin from Hole B and re-install in Hole A (see Figure 3-5). Bend the Split
Pin securely. Never use trolley with Shaft Stopper Pin in Hole B. Hole B is ONLY used when
installing the trolley on the beam.
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3.4 Electrical Connections
Figure 3-10 Optional trolley installation method
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5 This instruction applies to installations where an SNER model electric hoist is installed on an SMR
CAUTION
CAUTION
trolley. Use of such devices may cause the motor brake and other electrical components to
malfunction.
DANGER
been de-energized (disconnected). Lock out and tag out in accordance with ANSI Z244.1 “Personnel
Protection -Lockout/Tagout of Energy Sources”.
WARNING
adequately rated for the voltage and amperage draw of the trolley and hoist.
trolley. In this case the hoist and trolley are controlled by a pendant with four push buttons – two for the
hoist motion and two for the trolley motion. Special wiring considerations must be taken if the trolley is
used with a hoist other than an SNER model.
Pendant Cord - The Pendant Cord connects to the trolley via a hard wire connection or optional 8-pin
(8P) Plug and Socket.
Make the hard wire connection as follows:
1) Refer to Figure 3-12.
2) Attach the UP pendant wire to terminal number 4 (Red trolley pendant wire).
3) Attach the DOWN pendant wire to terminal number 5 (White trolley pendant wire).
Ensure that the voltage of the electric power supply is proper for the hoist or trolley.
Do NOT apply electronic soft-start control or voltage varying controls to the SMR
Before proceeding, ensure that the electrical supply for the hoist or trolley has
Make sure all power supply components (plugs, wires, breakers, fuses etc.) are
4) Attach the RIGHT pendant wire to terminal number 7 (Brown trolley pendant wire).
5) Attach the LEFT pendant wire to terminal number 8 (Blue trolley pendant wire).
6) Attach the pendant COMMON wire to terminal number 3 (Black trolley pendant wire).
7) Install the Cord Strain Relief Cable to the Cord Support on the Bar Holder.
Make the plug connection (optional) as follows:
1) Refer to Figure 3-13.
2) Insert the 8P Plug into the 8P Socket on the Switch Box and hand tighten the Screw Coupling.
3) Install the Cord Strain Relief Cable to the Cord Support on the Bar Holder.
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Figure 3-12 Pendant Cord Cable Terminal Connections.
Figure 3-13 Pendant and Power Supply Cable Installation
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Power Supply Cable Hoist Connection – The Power Supply Cable connects directly to the trolley's
Switch Box using Cable Holder Assembly. Make this connection as follows:
1) Refer to Figure 3-14
2) With 1 inch of the outer cable insulation extending beyond the cable packing, insert the cable into
the switch box and screw together Cable Holder A and B.
3) Refer to Figure 3-14 and connect the black and white wires to terminals 1 and 2 on the terminal
strip inside the Switch Box. Connect the ground wire (green with yellow stripe or solid green) to the
ground terminal next to the terminal strip.
4) Install the Cable Support Assembly (pre-installed on the Power Supply Cable) onto the Cable
Support Arm Assembly as shown in Figure 3-16.
5) Use care to avoid twisting or kinking the Power Supply Cable.
Trolley to Hoist Connections – The trolley connects to the hoist via short cables that are factory
installed into the trolley Switch Box. The Cables are hard wired into the hoist, but can be fitted with plug
assemblies that match sockets in the hoist bodies. Make these connections as follows:
Make the hard wire connection as follows:
1) Refer to Figure 3-15.
2) Insert the power supply and pendant cords in to the socket holder then fasten the square cable
holder mounting plates to the socket holder.
3) For the 3-conductor cord, connect the black and white wires to terminals 10D and 9C on the
terminal strip inside the hoist body. Connect the ground wire (green with yellow stripe or solid
green) to the ground terminal next to the terminal strip.
4) For the 4-conductor cord, connect the black, red, white, and brown wires to terminals 2-14,
12F, 11E, and 1-13 on the terminal strip inside the hoist body.
5) Use care to avoid twisting or kinking the Trolley to Hoist Cables.
Power Supply Cable Festooning – The SMR trolley is standardly supplied with Cable Hangers for the
Power Supply Cable. Make this connection as follows:
1) Refer to Figure 3-16.
2) Install the Cable Hangers onto the Power Supply Cable spacing them every 5 feet.
3) Install a Guide Wire system parallel to the beam. Pass the Guide Wire through the Cable Hangers
and Wire Guide.
4) Make sure the Guide Wire is properly tensioned and the Power Supply Cable is not twisted or
kinked.
3.4.6 Connection to Electrical Power Source - The black and white wires of the Power Supply Cable should
be connected to an Electric Power Disconnect Switch or Circuit Breaker. This connection should be
made so that the, SNER or other hoist is phased properly. Refer to Section 3.5.5 for instructions on
how to check for correct power supply phase connection.
3.4.7 Fuse/Breaker Capacity -The power supply for the trolley and hoist should be equipped with overcurrent
protection such as fuses, which should be selected for 110% to 120% of total listed full load amperage,
and should be dual element time-delay fuses. Refer to the motor nameplates on the trolley and hoist
for the full load amperage draw of each and added the two values together for the total amperage.
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Figure 3-14 Power Supply Cable Terminal Connections.
3.4.8
Figure 3-15 Trolley to Hoist Terminal Connections
DANGER
shock hazard when touching any part of the hoist or trolley. In the Power Supply Cable the ground wire
will be either Green with Yellow stripe or solid Green. It should always be connected to a suitable
ground connection. Do not paint the trolley wheel running surfaces of the beam as this can affect
grounding.
Grounding - An improper or insufficient ground connection creates an electrical
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Figure 3-16 Power Supply Cable installation and Guide Wire location.
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3.5 Pre-operational Checks and Trial Operation
3.5.1 Refer to the trolley's Nameplate and record the Code, Lot and Serial Number in the space provided on
the cover of this manual.
3.5.2 Refer to the hoist's owner's manual and perform all pre-operational checks for the hoist.
3.5.3 Perform pre-operational checks for the trolley:
n
n Ensure that trolley is properly installed on the beam, and stops for the trolley are correctly
n Ensure that all nuts, bolts and split pins (cotter pins) are sufficiently fastened.
n Pull down on the Pendant and ensure that the Cord Strain Relief Cable takes the force, not the
n
3.5.4 Confirm proper operation.
n Before operating read and become familiar with Section 4 - Operation.
n Before operating ensure that the hoist (and trolley) meets the Inspection, Testing and Maintenance
n Before operating ensure that nothing will interfere with the full range of the hoist’s (and trolley’s)
3.5.5 Proceed with trial operation to confirm proper operation.
n Verify that the controls agree with hoist direction. Make sure that depression of the Up button lifts
WARNING
and all other lifting attachments before use. Inspect all load suspension members for damage prior
to use and replace or repair all damaged parts.
positioned and securely installed on the beam.
Pendant Cord.
CAUTION
10% of the rated value, electrical devices may not function normally.
requirements of ANSI/ASME B30.16.
operation.
the load chain and depression of the Down button lowers the load chain hook. If the load chain
does not move in the correct direction when the push buttons are pushed, the power supply is
phased incorrectly. If the hoist does not operate correctly, shut off and lockout/tagout the main
power source to the hoist. Disconnect and switch the black and white input power leads at the
power source to correct the hoist’s motor phasing.
Confirm the adequacy of the rated capacity for all slings, chains, wire ropes
Check supply voltage before everyday use. If the voltage varies more than
n Operate the trolley though it's full range of motion. Make sure the trolley runs smoothly and does
not bind. Check the power supply and festoon system for proper operation
n Perform inspections per Section 5.3, “Frequent Inspections”.
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4.0 Operation
4.1 Introduction
DANGER
DO NOT WALK UNDER A SUSPENDED LOAD
WARNING
HOIST OPERATORS SHALL BE REQUIRED TO READ THE OPERATION SECTION OF THIS MANUAL, THE
WARNINGS CONTAINED IN THIS MANUAL, INSTRUCTION AND WARNING LABELS 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 HAVE A HISTORY OF OR BE PRONE TO SEIZURES, LOSS OF 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 OPERATE A HOIST OR LIFTING SYSTEM WHEN UNDER THE
INFLUENCE OF ALCOHOL, DRUGS, OR MEDICATION.
OVERHEAD HOISTS ARE INTENDED ONLY FOR VERTICAL LIFTING SERVICE OF FREELY SUSPENDED
UNGUIDED LOADS. DO NOT USE HOIST FOR LOADS THAT ARE NOT LIFTED VERTICALLY, LOADS THAT
ARE NOT FREELY SUSPENDED, OR LOADS THAT ARE GUIDED.
NOTICE
• Read ANSI/ASME B30.16 and ANSI/ASME B30.10.
• Read the hoist manufacturer’s Operating and Maintenance Instructions.
• Read all labels attached to equipment.
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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 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 operation and use of your overhead hoist.
4.2 Shall’s and Shall Not’s for Operation
WARNING
Improper operation of a hoist can create a potentially hazardous
situation which, if not avoided, could result in death or serious
injury, and substantial property damage. To avoid such a
potentially hazardous situation THE OPERATOR SHALL:
• NOT lift more than rated load for the hoist.
• NOT operate unless load is centered under hoist.
• NOT use damaged hoist or hoist that is not working
properly.
• NOT use hoist with twisted, kinked, damaged, or
worn chain.
• NOT use hoist if the bottom hook is capsized
(double fall hoists).
• NOT use the hoist to lift, support, or transport
people.
• NOT lift loads over people.
• NOT apply load unless load chain is properly
seated in the load sheave (and idle sheave for hoist
with two chain falls).
• NOT use the hoist in such a way that could result in
shock or impact loads being applied to the hoist.
• NOT attempt to lengthen the load chain or repair
damaged load chain.
• NOT operate hoist when it is restricted from forming
a straight line from hook to hook in the direction of
loading.
• NOT use load chain as a sling or wrap load chain
around load.
• NOT apply the load to the tip of the hook or to the
hook latch.
• NOT apply load if binding prevents equal loading
on all load-supporting chains.
• NOT operate beyond the limits of the load chain
travel.
• NOT operate hoist with missing/damaged chain
springs, cushion rubbers, stoppers or striker plates.
• NOT leave load supported by the hoist unattended
unless specific precautions have been taken.
• NOT allow the chain, or hook to be used as an
electrical or welding ground.
• NOT allow the chain, or hook to be touched by a
live welding electrode.
• NOT remove or obscure the warnings on the hoist.
• 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 properly sized, rigged, and seated
in the hook saddle.
• Take up slack carefully - make sure load is
balanced and load-holding action is secure 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 hoist and remove
the hoist from service until the malfunction or
unusual performance is resolved.
• Make sure hoist limit switches function properly.
• Warn personnel before lifting or moving a load.
• Warn personnel of an approaching load.
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CAUTION
Improper operation of a hoist can create a potentially hazardous
situation which, if not avoided, could result in minor or moderate
injury, or property damage. To avoid such a potentially hazardous
situation THE OPERATOR SHALL:
• 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.
• Avoid 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
worn parts, and keep appropriate records of
maintenance.
4.3 Trolley and Hoist Controls
4.3.1 Hoist and trolley with 4 button Pendant Control - When using
the pendant control depress the Up button to raise the hoist's
hook or the Down button to lower the hoist's hook as shown
in Figure 4-1. Depress the Forward and Reverse buttons to
move the trolley horizontally. To stop motion release the
buttons.
• Use the hoist manufacturer’s recommended parts
when repairing the unit.
• Lubricate load chain per hoist manufacturer’s
recommendations.
• NOT use the hoist load limiting or warning device to
measure load.
• NOT use limit switches as routine operating stops.
They are emergency devices only.
• NOT allow your attention to be diverted from
operating the hoist.
• NOT allow the hoist to be subjected to sharp
contact with other hoists, structures, or objects
through misuse.
• NOT adjust or repair the hoist unless qualified to
perform such adjustments or repairs.
4.3.2 Trolley with Two Button Pendant – When a motorized trolley
is supplied with a two button pendant, the pendant buttons
control the trolley's horizontal motion in the forward and
reverse directions.
4.3.3
CAUTION
before reversing direction.
Make sure the motor completely stops
26
Figure 4-1 Push Button
Pendant Control
Page 27
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.
n Designated Person - a person selected or assigned as being competent to perform the specific duties
to which he/she is assigned.
n 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.
n 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 25% of the
time.
n Heavy Service - that service which involves operation within the rated load limit which exceeds normal
service.
n 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, re-installed, altered, or modified trolleys 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 trolleys 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 trolley 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:
n Normal service - monthly
n Heavy service - weekly to monthly
n Severe service - daily to weekly
n 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:
n Normal service - yearly
n Heavy service - semiannually
n Severe service – quarterly
n 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.
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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, “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 trolley is
maintained in safe working condition.
All functional operating mechanisms for proper operation, proper adjustment, and unusual sounds.
Trolley braking system for proper operation
Hoist(s) in accordance with ANSI/ASME B30.16
Upper Limit Devices in accordance with ANSI/ASME B30.16
Hook(s) and hook latches in accordance with ANSI/ASME B30.10
5.4 Periodic Inspection
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 trolley is maintained in safe working condition.
5.4.2 For inspections where load suspension parts of the trolley are disassembled, a load test per
ANSI/ASME B30.16 must be performed on the trolley after it is re-assembled and prior to its return to
service.
Table 5-1 Frequent Inspection
Requirements of frequent inspection.
Loose or missing bolts, nuts, pins or rivets.
Worn, cracked, or distorted parts such as pins, bearings, wheels, shafts, gears, rollers, yokes, and
bumpers.
Excessive wear of brake system parts
Deterioration of electrical components such as controllers, switches, contacts, pushbuttons.
Proper function of motion limit devices that interrupt power or cause a warning to be activated.
Function, instruction and warning labels for legibility and placement.
5.5 Occasionally Used Trolleys
5.5.1 Trolleys that are used infrequently shall be inspected as follows prior to placing in service:
n Trolley Idle More Than 1 Month, Less Than 1 Year: Inspect per FREQUENT Inspection criteria in
Section 5.3.
n Trolley Idle More Than 1 Year: Inspect per PERIODIC Inspection criteria in Section 5.4
5.6 Inspection Records
Table 5-2 Periodic Inspection
5.6.1 Dated inspection reports and records should be maintained at time intervals corresponding to those
that apply for the hoist’s PERIODIC interval per Section 5.2.4. These records should be stored where
they are available to personnel involved with the inspection, maintenance, or operation of the trolley
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5.7 Inspection Methods and Criteria
5.7.1 This section covers the inspection of specific items. The list of items in this section is based on those
listed in ANSI/ASME B30.16 for Frequent and Periodic Inspection. In accordance with ANSI/ASME
B30.16, these inspections are not intended to involve disassembly of the trolley. Rather, disassembly
for further inspection would be required if frequent or periodic inspection results so indicate. Such
disassembly and further inspection should only be performed by a qualified person trained in the
disassembly and re-assembly of the trolley.
Table 5-3 Trolley Inspection Methods and Criteria
Item Method Criteria Action
Functional operating
mechanisms.
Braking System
Operation
Housing and
Mechanical
Components
Side Plates Visual Must be free of significant deformation Replace.
Bolts, Nuts, Snap
Rings, and Split Pins
Track Wheel - Tread Visual, Measure Diameter of the inside and outside tread surface
Track Wheel - Gear Visual Teeth should not be cracked, damaged, or
Visual, Auditory Mechanisms should be properly adjusted and
should not produce unusual sounds when
operated.
Function Trolley must come to a smooth stop within 10% of
its traveling speed when the pendant button is
released.
Visual, Auditory,
Vibration,
Function
Visual, Check
with Proper Tool
Trolley components including, suspension shafts,
track wheels, track wheel axles, clevises,
connection yokes, suspension bolts, shafts, gears,
bearings, pins, rollers, and bumpers should be free
of cracks, distortion, significant wear and
corrosion. Evidence of same can be detected
visually or via detection of unusual sounds or
vibration during operation.
Bolts, nuts, snap rings and split pins should not be
loose.
should not be less than the discard value shown in
Table 5-4.
excessively worn.
Repair or replace
as required.
Repair or replace
as required.
Replace.
Tighten or replace
as required.
Replace.
Replace.
Side Rollers - Wear Visual, Measure Diameter should not be less than the discard value
shown in Table 5-5.
Suspension Shaft Visual, Measure Suspension shaft should not be bent. Diameter
should not be worn by 10% or more.
Motor Brake Visual, Measure Brake lining dimension “A” should not be less than
discard value listed in Table 5-6. Refer to Section
6.2 for gaining access to motor brake 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
deterioration.
29
Replace.
Replace.
Replace.
Replace
Page 30
Table 5-3 Trolley Inspection Methods and Criteria
Item Method Criteria Action
Pendant - Switches Function Depressing and releasing push buttons should
make and break contacts in switch contact block
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 opposing
motions (e.g. forward and reverse).
Pendant - Housing Visual Pendant housing should be free of cracks and
mating surfaces of parts should seal without gaps.
Pendant - Wiring Visual Wire connections to switches in pendant should
not be loose or damaged.
Pendant And Power
Cords
Visual, Electrical
Continuity
Surface of cord should be free from nicks, gouges,
and abrasions. Each conductor in cord should
have 100% electrical continuity even when cord is
flexed back-and-forth. Pendant Cord Strain Relief
Cable should absorb all of the load associated with
forces applied to the pendant.
Electrical Plugs,
Sockets and Fittings
Visual Electrical Plugs, Sockets and Fittings should not
be cracked or damaged.
Cable Hangers Visual Cable Hangers should not be damaged or
significantly worn. Movement should be smooth
and should not cause the Power Supply Cable to
twist or kink.
Repair or replace
as necessary.
Replace.
Tighten or repair
Replace.
Repair or replace
as necessary.
Repair or replace
as necessary.
Pendant - Labels Visual Labels denoting functions should be legible. Replace.
Warning Labels Visual Warning Labels should be affixed to the pendant
Replace.
cord (see Section 1.2) and they should be legible.
Trolley Capacity
Label
Visual The label that indicates the capacity of the trolley
should be legible and securely attached to the
Replace.
trolley.
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Table 5-4 Track Wheel Wear Dimensions
Note: Track wheels are for flat and tapered flanges.
Capacity
(Ton)
“d” Dimension
inch (mm)
Standard Discard Standard Discard
“D” Dimension
inch (mm)
1 3.60 (91.5) 3.44 (87.5) 3.74 (95) 3.58 (91)
2 4.17 (106) 3.98 (101) 4.33 (110) 4.13 (105)
3 4.76 (121) 4.49 (114) 4.92 (125) 4.65 (118)
Table 5-5 Side Roller Wear Dimensions
Trolley Side Plate
DIA.
R
Guide Roller
Guide Roller Bracket
Capacity
(Ton)
Standard Discard
1 1.50 (38) 1.46 (37)
2 and 3 1.69 (43) 1.65 (42)
“R” Dimension
inch (mm)
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Table 5-6 Motor Brake Wear Dimensions
Capacity
(Ton)
1, 2 and 3
Model
MP1A
MP1B
"A" Dimension - inch (mm)
Standard Discard
1.45 (36.8) 1.38 (35.3)
1.25 (31.8) 1.19 (30.3)
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6.0 Maintenance & Handling
6.1 Lubrication
6.1.1 Lubricate the following trolley components with NLGI (National Lubricating Grease Institute) #2 or
equivalent grease.
6.1.2 Track Wheel Gear – Clean and re-grease the Track Wheel gears and motor output pinion every three
months (more frequently for heavier usage or severe conditions). Do not use an excessive amount of
grease and avoid getting any grease on the running surfaces of the Track Wheels or the beam.
6.1.3 Gear Box – The reduction gearing in the motor should be cleaned and lubricated at least once per year
for normal usage. Clean and lubricate the reduction gear assembly more frequently for heavier usage
or severe conditions. Gain access to the gears by removing the four bolts that mount the motor
assembly to the trolley Side Plate. Make sure to properly orient and reuse the neoprene gasket
between the motor and Side Plate.
6.1.4 Suspension Pins, Bolts and Shafts – Grease at least twice per year for normal usage (more frequently
for heavier usage or severe conditions).
6.2 Brake
6.2.1 The trolley motor brake is NOT adjustable.
6.2.2 Motor Brake Removal – Remove the four Bolts that attach the Motor Cover to the Motor Frame.
Carefully remove the Motor Cover, brake components, and Stator.
6.2.3 Brake Lining Inspection – The brake lining is designed for a long life and should provide years of
trouble-free service. If the brake lining is being inspected due to excessive trolley drift during operation
(see Section 5.7), disassemble the motor brake and inspect all motor brake parts. Braking surfaces
should be clean, free of grease/oil and should not be glazed. Replace the Brake Drum and/or Motor
Cover if necessary. For normal inspections, the Brake Lining and Motor Cover wear should be
measured as follows.
1) Refer to Table 5-6.
2) Measure the distance "A" using calipers and a straight edge. Make sure the Brake Drum is square
against the Motor Cover. Place the straight edge across the edge of the Brake Drum and measure
from the straight edge to the mounting face of the Motor Cover.
3) Compare the measurement with the values listed in Table 5-6. Replace the Brake Drum and/or
Motor Cover if the "A" measurement is smaller than the discard limit.
6.2.4 Motor Brake Installation - After the brake is inspected, carefully place the Stator and brake components
into the Motor Frame. Be sure to reseal the Motor Cover to Motor Frame surface using a small bead of
liquid (hi-temperature) sealant. Install the Motor Cover attachment bolts.
6.3 Storage
6.3.1 The storage location should be clean and dry.
6.3.2 Care should be take to not damage any of the electrical power cords or fittings.
6.4 Outdoor Installation
6.4.1 For trolley and hoist installations that are outdoors, the trolley and hoist should be covered and
protected from the weather when not in use.
6.4.2 Possibility of corrosion on components of the trolley increases for installations where salt air and high
humidity are present. The trolley may require more frequent lubrication. Make frequent and regular
inspections of the unit's condition and operation.
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7.0 Troubleshooting
HAZARDOUS VOLTAGES ARE PRESENT IN THE TROLLEY AND IN CONNECTIONS
BETWEEN COMPONENTS.
Before performing ANY maintenance on the equipment, de-energize the supply of electricity to the
equipment, and lock and tag the supply device in the de-energized position. Refer to ANSI Z244.1,
“Personnel Protection – Lockout/Tagout of Energy Sources.”
Only Trained and competent personnel should inspect and repair this equipment.
Symptom Cause Remedy
Loss of power Check circuit breakers, switches, fuses and connections on power
Wrong voltage or
frequency
Motor overheated and
optional thermal overload
protector has tripped
Improper, loose, or
Trolley will not operate
Trolley drifts excessively
when stopping
Motor or brake
overheating
Trolley operates
intermittently
broken wire in trolley
electrical system
Faulty magnetic contactor Check coil for open or short circuit. Check all connections in the control
Motor burned out Replace motor frame/stator, shaft/rotor, and any other damaged parts.
Faulty Start Switch
(model MP1A only)
Faulty Start or Run
Capacitor
Motor brake not holding Clean and inspect brake lining. Replace if necessary
Excessive duty cycle Reduce frequency of trolley movement.
Extreme external heating Above an ambient temperature of 140°F, the frequency of trolley
Collectors making poor
contact
Contactor contacts arcing Check for burned contacts. Replace as needed.
Loose connection in
circuit
Broken conductor in
Pendant Cord
WARNING
Table 7-1 Troubleshooting Guide
lines/cable.
Check voltage and frequency of power supply against the rating on the
nameplate of the motor.
See Trouble Shooting Problem "Motor or brake overheating".
Shut off power supply, check wiring connections in the trolley switch box,
on hoist control panel and inside push-button pendant.
circuit. Check for open contactors. Replace as needed.
Disconnect Start Switch from motor. The resistance between the Start
Switch terminals 2 and 3 should be greater than 500K ohms. If not,
contact factory for detailed Start Switch troubleshooting.
Check capacitor(s) for open or short circuit. Check connection. Replace
as needed.
operation must be reduced to avoid overheating of the motor. Special
provisions should be made to ventilate the trolley or otherwise shield it
from the heat.
Check movement of spring loaded arm, weak spring, connections, and
shoe. Replace as needed.
Check all wires and terminals for bad connections. Replace as needed.
Check for intermittent continuity in each conductor the Pendant Cord.
Replace entire Pendant Cord if continuity is not constant.
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8.0 Warranty
Warranty explanation and terms.
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 - 2 years
Air and Electric Powered Hoists, Trolleys, and Crane Components - 1 year
Spare / Replacement Parts - 1 year
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. 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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This Page Intentionally Left Blank
36
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9.0 1/8 to 3 Ton Parts List*
When ordering Parts, please provide the Hoist code number, lot number and serial number located on the Hoist
nameplate (see fig. below).
Reminder: Per sections 1.1 and 3.5.1 to aid in ordering Parts and Product Support, record the Hoist code number, lot
number and serial number in the space provided on the cover of this manual.
SMR Series Nameplate
The parts list is arranged into the following sections:
Section Page
9.1 Electric Parts………………………….……………………………………………..………...………... 38
9.2 Pendant Parts……………………………………………………………………………………….….. 40
9.3 Power Supply Parts…………………………………….…………………………………….….…….. 42
9.4 Side Plates and Suspension Parts…………………………………………………………....……… 44
9.5 Motor Parts…………………………………………………………….……………………….……….. 46
In the column "Parts Per Trolley" a designator is used for parts that apply only to a particular model or option.
Refer to Section 2 for SMR Trolley model numbers and additional descriptions.
The designators are:
L= Single speed, Standard, 80 fpm
S = Single Speed, Low, 40 fpm
37
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9.1 Electric Parts
Figure 9-1 Electric Parts
38
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9.1 Electric Parts
Figure
No.
1 Connection Box 1 MR1DS9401
2 Connection Box Lid 1 MR1DS9411
3 Packing 1 MR1DS9421
4 Spacer 4 MS517010
5 Machine Screw 4 60704
6 Cable Holder A Assembly 1 ECP5924BB
7 Plate Assembly 1 MP1DS9447
8 Machine Screw w/Spring Washer 4 MS554010
9 Machine Screw w/Spring Washer 2 MS555010
10 Holder 46 1 ECP99BK02
11 Nut 1 9093414
12 Machine Screw w/Spring Washer 1 MS557010
13 Starter Switch Assembly 1 EP1BS2472
14 Terminal Plate 18P 1 ECP1518AE
15 Machine Screw w/Spring Washer 2 MS556010
16 Cord Cover Support Packing 1 MS527010
17 Lid 42 1 E6F630010S
18 Machine Screw w/Spring Washer 4 MS554010
Capacitor Assembly – Model MP1A 1 EP1BS2473
22
Capacitor Assembly – Model MP1B 1 MP1DS2535
23 Electromagnetic Contactor 1 MGC23306D
24 Machine Screw w/Spring Washer 2 MS556010
25 Machine Screw 4 MS554010
26 Warning Label EE 1 E2D866125
Nameplate B – Model MP1A
Nameplate B – Model MP1B
27
Nameplate B (blank) – Model MP1A
Nameplate B (blank) – Model MP1B
Nameplate C – 1/4 Ton 1 B1SHM03S9A7
28
Nameplate C – 1/2 Ton 1 B1SHM05S9A7
29 Warning Seal TM 1 T6PD0059865
30 Cable 3C Assembly 1 MP1DS2745 MP1FS2745
31 P/S Cord 4C 1 12/4
32 Cable Holder A Assembly 1 60704
33 Cable Holder A Assembly 1 60704
34 Cable Packing 2 ECP6916AA
35 Holder Plate 1 ECP5924AI
36 Plate Packing 1 ECP5924AJ
37 Cable 4C Assembly 1 MP1DS2746 MP1FS2746
38 P/B Cord 5C 1 16/6
39 Cable Holder A Assembly 1 60704
40 Cable Holder A Assembly 1 60704
41 Cable Packing 2 ECP6912AA
42 Holder Plate 1 ECP5924AI
43 Plate Packing 1 ECP5924AJ
Part Name
Parts
Per
Trolley
S 1 B1SHF10S9A6 B1SHF20S9A6 B1SHF30S9A6
L 1 B1SHF10L9A6 B1SHF20L9A6 B1SHF30L9A6
S 1 B1SHF10S9A6R2 B1SHF20S9A6R2 B1SHF30S9A6R2
L 1 B1SHF10L9A6R2 B1SHF20L9A6R2 B1SHF30L9A6R2
S 1 B1SHF10S9A8 B1SHF20S9A8 B1SHF30S9A8
L 1 B1SHF10L9A8 B1SHF20L9A8 B1SHF30L9A8
S 1 B1SHF10S9A8R2 B1SHF20S9A8R2 B1SHF30S9A8R2
L 1 B1SHF10L9A8R2 B1SHF20L9A8R2 B1SHF30L9A8R2
1 Ton 2 Ton 3 Ton
39
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9.2 Pendant Parts
Figure 9-2 Pendant Parts
40
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9.2 Pendant Parts
Figure
No.
1 Bar Holder Assembly 1 MR1DS1481
2 Bar Holder 1 MR1DS9481
3 Cord Chain Stopper 1 E6L614010S
Machine Screw w/Spring
4
Washer
5 Spring Washer 2 9012712
6 Socket Bolt 2 9091295
Machine Screw w/Spring
7
Washer
8 4 Button Pendant 1 MP1DSS2781 MP1FSS2781
9 Cable Holder A Assembly 1 60704
10 Cable Packing 1 ECP6912AA
11 Plate Packing 1 ECP5924AJ
12 Holder Plate 1 ECP5924AF
13 P/B Cord 5C 1 16/6P
14 Tag Holder 1 E3S787003
15 Warning Tag LD 1 WTAG7
4 Push Button Switch
16
Assembly
17 Split Pin 1 9009402
18 Cap 4 CAP
19 Arrow Set of 2 4 ARROWS
20 Cord Chain Pin B 1 ES628003
Part Name
Parts
Per
Trolley
2 E6F151003
4 MS554010
1 ECP311EAB
1 Ton 2 Ton 3 Ton
41
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9.3 Power Supply Parts
Figure 9-3 Power Supply Parts
42
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9.3 Power Supply Parts
Figure
No.
Power Supply Cable 4C
1
Assembly
2 Power Supply Cable 4C 1 10/4
3 Cable Support 14 Assembly 1 M3EN010-17242
4 Cable Packing 1 ECP6918AA
5 Cable Hanger 14 Assembly 6 MS1733020
Cable Support Bar Complete
6
Assembly
7 Cable Support Arm 1 MR1DS9492
8 Cable Support Bar 1 MR1DS9491
9 Wire Guide Assembly 1 MR1DS1493
10 Support Bar Holder 1 MR1DS9501
11 Spring Washer 2 9012711
12 Hex Head Cap Screw 2 9093329
13 Spring Washer 2 9012712
14 Socket Bolt 2 9091293
15 Trolley Cable Assembly 6C 1 MP1DS1796
16 Trolley Cable 6C 1 14/6
17 Cable Holder A Assembly 2 60704
18 Cable Packing 2 ECP6914AA
Part Name
Parts
Per
Trolley
1 MP1ES1771
1 MR1DS1491
1 Ton 2 Ton 3 Ton
43
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9.4 Side Plates and Suspension Parts
Figure 9-4 Side Plates and Suspension Parts
44
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9.4 Side Plates and Suspension Parts – All Speeds
Figure
No.
1 Side Plate G Assembly 1 MR1DS5201 MR1ES5201 MR1FS5201
2 Track Wheel G Assembly 2 MS1101010 MS1101020 MS1101030
3 Washer 4 MS104010 MS104020 MS104030
4 Snap Ring 4 9047115 9047120 9047125
5 Track Wheel S Assembly 2 MS1102010 MS1102020 MS1102030
6 Side Plate S Assembly 1 MR1DS5202 MR1ES5202 MR1FS5202
7 Side Roller Complete Set 4 MR1DS1211 MR1ES1211
8 Spring Lock Washer 8 9012711 9012712
9 Bolt 4 9093329 9093351
10 Split Pin 2 9009446 9009448
11 Fixing Shaft 1 MR1DS9131 MR1ES9131 MR1FS9131
12 Suspension Shaft Complete Set 1 MR1DS1111 MR1ES1111 MR1FS1111
13 Suspension Shaft 1 MSF115010 MSF115020 MR1FS9101
14 Split Pin 1 90094145 90094165
15 Slotted Nut 1 T3P154020 MS162030
16 Thick Spacer L 2 MR1DS9110 MR1ES9110 MR1FS9110
17 Fixing Spacer 0
18 Thick Spacer 3 MSF116010 T7G116030 MSF116030
19 Thin Spacer 8 MSF117010 MSF117020 MSF117030
20 Bolt 1 MS161010 MS161020 MS161030
21 Shaft Stopper 1 T6G156020 MS164020 MS164030
22 Split Pin 1 9009432 9009433
23 Balance Weight Complete Set 1 MR1DB1621
24 Weight Bolt 1 MR1DB9622
25 Slotted Nut 1 MS162010
26 Split Pin 1 9009413
27 Spring Washer 8 9093424 9093427
28 Nut 8 9012711 9012712
29 Bumper 4 MR1DS9631 MR1FS9631
30 Spring Washer 4 9012711
31 Nut 4 9093424
32 Angle 4 MR1DS9634 MR1ES9634
33 Bolt 8 9093330 9093352
34 Square Spacer 4 MS006010 MS006020
Part Name
Parts
Per
Trolley
1 Ton 2 Ton 3 Ton
EXTENDED FLANGE RANGE SUSPENSION SHAFT PARTS
Figure
No.
10 Split Pin 2 9009446 9009448
11 Fixing Shaft 1 MR1DS9141 MR1ES9141 MR1FS9141
12 Suspension Shaft Complete Set 1 MR1DS1112 MR1ES1112 MR1FS1112
13 Suspension Shaft 1 MSF181010 MSF181020 MR1FS9121
14 Split Pin 1 90094145 90094165
15 Slotted Nut 1 T3P154020 MS162030
16 Thick Spacer L 2 MR1DS9110 MR1ES9110 MR1FS9110
17 Fixing Spacer 2 MSF182010 MSF182020 MSF182030
18 Thick Spacer 9 MSF116010 T7G116030 MSF116030
19 Thin Spacer 8 MSF117010 MSF117020 MSF117030
20 Bolt 1 MS161010 MS161020 MS161030
21 Shaft Stopper 1 T6G156020 MS164020 MS164030
22 Split Pin 1 9009432 9009433
Part Name
Parts
Per
Trolley
1 Ton 2 Ton 3 Ton
45
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9.5 Motor Parts
Figure 9-5 Motor Parts
46
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9.5 Motor Parts
Figure
No.
1 Socket Bolt 4 90912134
2 Motor Cover Assembly 1 MR1DS1301
Brake Drum Assembly – Model MP1A 1 MP1DS5261
3
Brake Drum Assembly – Model MP1B 1 MP1DS5261R2
4 Brake Spring 1 MP1DS9264
5 Thrust Collar 1 ES506005S
6 Thrust Disc 2 ES505005S
7 Pull Rotor 1 ES503005S
8 Coned Disc Spring 1 ES504005S
Motor Shaft with Rotor – Model MP1A 1 MP1DS5291
9
Motor Shaft with Rotor – Model MP1B 1 MP1DS5291R2
10 Oil Seal 1 MR1DS9293
11 Ball Bearing 1 9001004
12 Guard 1 MR1DS9281
Motor Frame with Stator – Model MP1A 1 B1SHF10S5A2
Motor Frame with Stator – Model MP1B 1 B1SHF10S5R2
Motor Frame with Stator – Model MP1A
13
– w/Optional Thermal Protection
Motor Frame with Stator – Model MP1B
– w/Optional Thermal Protection
14 Bolt 4 9093328
15 Spring Washer 4 9012711
16 Washer 4 9012513
17 Machine Screw w/Spring Washer 1 MS555010
18 Coil Cover 1 MR1DS9326
19 Terminal Plate 6P 1 MS518010
20 Machine Screw w/Spring Washer 2 MS556010
21 Terminal Cover Packing 1 MR1GS9325
22 Terminal Cover 1 M6F206D010
23 Machine Screw w/Spring Washer 4 MS554010
24 Ball Bearing 1 E2D238125
Gear Set 80 FPM S 1 MR1DS1241 MR1ES1241
25
Gear Set 40 FPM L 1 MR1DL1241 MR1EL1241
26 Snap Ring 1 9047120
Gear #2 80 FPM – MODEL MP1B ONLY S 1 MR1DS9241
27
Gear #2 40 FPM L 1 MR1DL9241
28 Spacer 1 MR1DS9244
29 Snap Ring 1 9047120
30 Ball Bearing 1 9001211
31 O Ring 1 MR1DS9254
32 O Ring 1 9013316
33 Gear #3 1 MR1DS9242 MR1ES9242
34 Gear Box Packing 1 MR1DS9248
35 Set Pin 2 MR1DS9249
Part Name
Parts
Per
Hoist
1 B1SHF10S5TP
1 B1SHF10S5TPR2
1 Ton 2 Ton 3 Ton
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www.harringtonhoists.com
Harrington Hoists, Inc. Harrington Hoists – Western Division
401 West End Avenue 2341 Pomona Rincon Rd. #103
Manheim, PA 17545-1703 Corona, CA 92880-6973
Phone: 717-665-2000 Phone: 909-279-7100
Toll Free: 800-233-3010 Toll Free: 800-317-7111
Fax: 717-665-2861 Fax: 909-279-7500
SMROM
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