Harrington Hoists and Cranes AHM Hoist User Manual
This equipmen t sh ould not be i nstal le d, op erat ed or m aint ain ed
EFFECTIVE: September 27, 2010
Mini-Cat
AIR POWERED
CHAIN HOIST
AH SERIES
250 and 500 Lb. Capacity
Product Code a nd Ser i al Number
by any person w ho has not rea d and und ersto o d all the
contents of t his manu al. Fail ure t o r ead and c o mply w i th the
contents of t his manu al c an r esult in s eri ous b o dily inj ury or
death, and/or prop erty d amag e.
Table of Contents
Section Page Number
1.0 Important In for mati on and Warnings …………… …………… ………………… ………… ……………… 4
1.1 Terms and Summary
1.2 Warning Tags and Labels
2.0 Technical Information…………………… …………… ……………… …………… ……………… ………. 8
2.1 Specifications
2.2 Speeds, Air Consumptions and Di mensions
2.3 Part Names
3.0 Pre-operational Procedu res … …………… …… …………… ……… ………… ……………...…………. 14
3.1 Air Supply System Requirements
3.2 Air Supply Capacity and Regulation
3.3 Lubrication
3.4 Filtration
3.5 Air Dryer
3.6 Piping, Hoses and Fittings
3.7 Mounting Location
3.8 Connecting Hoist to Air Supply
3.9 Mounting the Hoist
3.10 Optional Chain Container
3.11 Non-Stationary Applications
3.12 Manipulator Right or Left Hand Operation
3.13 Manipulator Model’s Bottom Hook Position
3.14 Pre-operational Checks and Trial Opera tion
4.0 Operation ……………………… …………… ……… ……… …………… …… ………. ..………… …… ... 24
4.1 Introduction
4.2 Shall’s and Shall Not’s for Operation
4.3 Hoist Controls
4.4 Controlling Hoist Speed
2
Section Page Number
5.0 Inspection ………………..……… …………… …… ………… ……… ………… … ……………… …… ... 28
5.1 General
5.2 Inspection Classification
5.3 Frequent Inspection
5.4 Periodic Inspection
5.5 Occasionally Used Hoists
5.6 Inspection Records
5.7 Inspection Methods and Criteria
6.0 Lubrication……………………………………………………………………………..…………………... 35
6.1 Air Hoist Lubrication
6.2 Load Chain Lubrication
6.3 Hooks and Suspension Components
7.0 Maintenance and Handling … …………… ……… ………… ……… ………… … ……………… …… …. 36
7.1 Brake
7.2 Load Chain
7.3 Pendant and Manipulator
7.4 Load Sheave Inspection
7.5 Storage
7.6 Outdoor Installation
8.0 Troubleshooting ………………… …………… …… ………… ……… ………… … ……………… …… … 43
9.0 Warranty ………………………… …………… …… ………… ……… ………… … ……………… …… … 45
10.0 Parts List ………………………………… …………… ……………… …………… …………………… … 47
3
1.0 Important Information and Warnings
1.1 Terms and Summary
This manual provides impor tant infor mation for personnel involved with the installation, operation and maintenance
of this product. Although you may be familiar with this or similar equipment, it is strongly recommended that you read
this manual before installing, operating or maintaining the product.
Danger, Warning, Cauti on and Notic e
Throughout this manual there are steps and procedures that can present hazardous situations. The following signal
words are used to identify the degree or level of hazard seriousness.
Danger indicates an imminently hazardous situation which, if not avoided, will result in death or
serious 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.
These general instructions deal with the normal installation, operation, and maintenance situations encountered with
the equipment described herein. The instructions should not be interpreted to anticipate every possible contingency
or to anticipate the final system, crane, or configuration that uses this equipment. For systems using the equipment
covered by this manual the supplier and owner of the system are responsible for the system’s compliance with all
applicable industry standards, and with all applicable Federal, State, and Local regulations/codes.
This manual includes instructions and parts information for a variety of hoist types. Therefore, all instructions and
parts information may not apply to any one type or size of specific hoist. Disregard those portions of the instructions
that do not apply.
Record your hoist’s Product Code and Serial Number (see Figure 10-1) on the front cover of this manual for
identification and future reference to avoid referring to the wrong manual for information or instructions on installation,
operation, inspection, maintenance, or parts.
Use only Harrington authorized replacement parts in the service and maintenance of this hoist.
4
Equipment described herein is not designed for and 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 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”.
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.
HAZARDOUS AIR PRESSURE IS PRESENT IN THE HOIST, IN THE SUPPLY OF COMPRESSED AIR TO THE
HOIST, AND IN THE CONNECTIONS BETWEEN COMPONENTS.
Before performing ANY maintenance on the equipment, de-energize the supply of compressed air 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.
5
It is the responsibility of the owner/user to install, inspect, test, maintain, and operate a hoist in accordance with
ANSI/ASME B30.16, “Safety Standard for Overhead Hoists” and OSHA Regulations. If the hoist is installed as part
of a total lifting system, such as an overhead crane or monorail, it is also the responsibility of the owner/user to
comply with the applicable ANSI/ASME B30 volume that addresses that type of equipment.
It is the responsibility of the owner/user to have all personnel that will install, inspect, test, maintain, and operate a
hoist read the contents of this manual and applicable portions of ANSI/ASME B30.16, “Safety Standard for
Overhead Hoists”, and OSHA Regulations. If the hoist 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 hoist owner/user requires additional information, or if any information in the manual is not clear, contact
Harrington or the distributor of the hoist. Do not install, inspect, test, maintain, or operate this hoist unless this
information is fully understood.
A regular schedule of inspection of the hoist in accordance with the requirements of ANSI/ASME B30.16 should be
established and records maintained.
6
1.2 Warning Tags and Labels
The warning tag illustrated below in Figure 1-1 is supplied with each hoist shipped from the factory. If the tag is
not attached to your hoist (for pendant and manipulator control, the warning tag is attached to the pendant hose;
for the pull cord control, the warning tag is attached to the up cord), order a tag from your dealer and install it.
See parts list in the parts section of this manual. Read and obey all warnings attached to this hoist. Tag is not
shown actual size.
Bilingual Version
Figure 1-1 Warni ng Tag A ttached to Hois t
7
2.0 T echni cal Informati on
High Speed Liftin g :
26 to 47 ft/min. (7.9 to 14 .3m/mi n.) with load
Valve Section :
Valve made from al umin um red uce s effe cts of cor rosio n
Compatibility :
Fits existing Harri ngt on trol leys ; use s ex istin g ED l oad c hain
Duty Cycle :
High Duty Cycle
Air Lubrication Requirements :
Minimum of 10 to 15 drops per minute (2-3 cc/min) of oil
Air Supply Pressur e :
60 to 90 psi. (0.4 to 0. 6 M Pa.)
Air Consumption :
19 to 34 CFM (0.54 to 0.96 cubic meters per minut e).
Minimum Supply Ho se Siz e :
3/8 inch (9.5 mm)
Maximum Lift :
131 ft. (39.9 m) for Penda nt and Cord mod els;
13 ft. (4.0 m) for M anip ulator Model.
2.1 Specifications
2.1.1 Product Code
2.1.2 Features and General Specifications:
Weight/Size : Light weight and compac t siz e – cord model w ith 10 feet (3.0 m)
of lift weighs 15. 2 lb s. (6.9 kg) .
Motor Brake : R eliable disc bra ke system
Low Noise Levels :
Operating Environ ment : Temperatur e range +14°F to 14 0°F (-10°C to 60°C)
Air Filtration Requ ire ment s : Maximum 5 micron air filter or finer.
Air Inlet Port Size : 3/8 inch NPT
76 dba @ 1 meter when li fting rated loa d
82 dba @ 1 met er w hen low erin g rat ed lo ad
Table 2-1 General Specifications
Capacity
(lbs.)
Product
Code
Headroom
(in)
250 AH250C 12.0 10 4 x 1 15 0.26
500 AH500C 12.0 10 4 x 1 15 0.26
250 AH250P 12.0 10 4 x 1 19 0.49
500 AH500P 12.0 10 4 x 1 19 0.49
250 AH250M 33.0* 6.5 4 x 1 24 0.47
500 AH500M 33.0* 6.5 4 x 1 24 0.47
* Note: Headroom is 45.0 in. with optional 13.0 ft. lift.
Standard
Lift
(ft)
8
Load Chain
Dia. (mm) x
Chain Fall
Lines
Net Weight
with
Standard
Lift
(lbs.)
Weight for
Additional One
Foot of Lift
(lbs.)
2.2 Speeds, Air Consumptions and Dimensions
Table 2-2 Cord Model Speeds, ft/mi n at 90 ps i*
Capacity
(lbs.)
Product Code
Full Load
250 AH250C 47 (37) 61 (53) 51 (47) 45 (40)
500 AH500C 32 (20) 61 (53) 56 (54) 45 (40)
Table 2-3 Cord Model Air Consumpti on, CFM at 90 psi*
Capacity
(lbs.)
Product Code
Full Load
250 AH250C 32 (24) 34 (27) 30 (24) 28 (23)
500 AH500C 29 (21) 34 (27) 32 (26) 28 (23)
* Values in parentheses for air supply at 60 psi.
UP
No Load
UP DOWN
No Load
DOWN
Full Load
Full Load No Load
No Load
Figure 2-1 Dimensions for Cord Model Mini-Cat Air Hoist (inches)
9
Table 2-4 Pendant Model Spee ds, ft/min at 90 ps i*
Capacity
(lbs.)
Product Code
Full Load
UP
No Load
Full Load
DOWN
No Load
250 AH250P 42 (33) 55 (48) 48 (45) 43 (38)
500 AH500P 29 (18) 55 (48) 53 (51) 43 (38)
Table 2-5 Pendant Model A ir Consumption, CFM at 90 psi*
Capacity
(lbs.)
Product Code
Full Load
UP DOWN
No Load
Full Load No Load
250 AH250P 28 (21) 31 (24) 27 (21) 26 (20)
500 AH500P 26 (19) 31 (24) 28 (22) 26 (20)
* Values in parentheses for air supply at 60 psi.
Figure 2-2 Dimensions fo r Pe nda nt Mo del Mini-Cat Air Hoist (inches)
10
Table 2-6 Manipulator Model S peeds, ft/min at 90 psi*
Capacity
(lbs.)
Product Code
Full Load
UP
No Load
Full Load
DOWN
No Load
250 AH250M 41 (32) 54 (47) 47 (44) 42 (37)
500 AH500M 29 (18) 54 (47) 53 (50) 42 (37)
Table 2-7 Manipulator Model Air Consumption, CFM at 90 psi*
Capacity
(lbs.)
Product Code
Full Load No Load Full Load No Load
UP DOWN
250 AH250M 28 (21) 31 (24) 27 (21) 26 (20)
500 AH500M 26 (19) 31 (24) 28 (22) 26 (20)
* Values in parentheses for air supply at 60 psi.
Figure 2-3 Dimensions for Manipula tor Mod el Mini-Cat Air Hoist (inches)
11
2.3 Part Names
Figure 2-4 AH250C and AH500C Cord Model Part Names
Figure 2-5 AH250P and AH500P Pendant Model Part Names
12
Figure 2-6 AH250M and AH500M Manipulator Model Part Names
13
3.0 Pre-operatio nal Procedures
3.1 Air Supply System Requirements
3.1.1
air hoist with required pressure and flow. Otherwise the hoist may operate poorly or may fail to operate.
See Section 3.2.
3.1.2
supply is the primary source of lubrication to the hoist. Therefore, a dedicated air supply lubricator must
be used with the hoist. Refer to Section 3.3.
3.1.3
ensure its proper operation. The air must be clean and free of debris such as dirt and rust. Refer to
Section 3.4 for filtration requirements. The air must also be dry; free of moisture and water. Refer to
Section 3.5.
Pressure and Flow - Verify that the air supply system has capacity to supply your
Lubrication - The hoist requires lubrication for proper operation. The oil in the air
Air Quality - Good air quality is essential to prevent damage to your hoist and to
3.2 Air Supply Capacity and Regulation
3.2.1 Capacity - The air supply system must be capable of delivering the required airflow (cfm or m³/min) to
the hoist inlet port. Without the required airflow the hoist will not operate properly or may not operate at
all. See Section 2.0 for your hoist's air consumption requirements. In determining if your system is
capable of supplying the required airflow, consider the following:
Capacity of compressor(s) and tank
Other air consuming equipment
Flow restrictions such as pipes, hoses, valves and fittings
Inadequate capacity will cause a significant drop in pressure when the hoist is operated, and could
cause poor performance or failure to operate.
3.2.2 Regulation - The hoist requires a constant supply of air at a pressure of between 60 and 90 psi (0.4
MPa and 0.6 MPa). If the air supply is not regulated or is regulated at a pressure greater than 90 psi
(0.6 MPa), then a regulator must be used
lubricator in the air supply to the hoist.
3.3 Lubrication
3.3.1
as follows:
1) Best location - At the hoist inlet. In this case the lubricator can be either the mist type or drop
type.
2) Second best location - No more than 15 feet (4.5 meters) away from the hoist, at the same
elevation or above the hoist inlet. In this case the mist type lubricator must be used.
3) Third best location - No more than 15 feet (4.5 meters) away below the hoist. In this case the
mist type lubricator must be used.
3.3.2
minute (2 to 3 cc/minute). The hoist’s exhaust will emit a fine oil mist when properly lubricated. Refer
to Section 6.1 for type of oil to use.
. The regulator may be located anywhere up-line of the
The hoist must be supplied with its own lubricator. The lubricator must be located
The lubricator must be set to deliver the equivalent of 10 to 15 drops of oil per
14
3.4 Filtration
3.4.1
microns in size. Therefore, the hoist must have a 5 micron filter
upstream of the lubricator.
3.4.2 The filter servicing the hoist can also service other hoists and air consuming equipment. In this case,
the air filter must be in sized for the total air consumption of the equipment it is servicing.
The air entering the hoist inlet must not contain any particulate greater than 5
3.5 Air Dryer
3.5.1
system to ensure that dry air
this moisture will cause corrosion on internal hoist components during periods when the hoist is idle
leading to hoist malfunction.
To prevent corrosion and hoist malfunction, employ an air dryer in the air supply
3.6 Piping, Hoses And Fittings
3.6.1
Since moisture tends to accumulate in compressed air systems, corrosion may result if the system is
not periodically drained.
Arrange for a drain in the air supply piping at the lowest point in the piping, and
Periodically drain the system to remove moisture/water from the system and to prevent corrosion.
Filter, regulator (if equipped), and lubricator must be arranged in the order shown in Figure 3-2.
System Configuration - The system should be configured as shown in Figure 3-1.
in its air supply. The filter must be
is supplied to the hoist. If there is moisture in the air supplied to the hoist,
Figure 3-1 Diagram of Air Supply Configuration (Typical)
Figure 3-2 Typical Air Supply Filter, Regulator and Lubricator.
15
3.6.2
3.6.3
Supply line inside diameter - Pipes and hoses should be sized to accommodate
the hoist’s airflow requirements. The inside diameter for the pipe section feeding the hoist should be
12.7mm (½”) or larger and for air supply hose the inside diameter should be 9.5mm (3/8”) inch or larger.
Hoses - The connection from the air supply system piping to the hoist must be
made with a flexible pressure hose. Due to normal line losses in air supply lines:
Do not use hose smaller than specified in Section 3.6.2, and
Limit the length of the hose to that specified in Figure 3-3.
If your application exceeds these requirements consult factory.
Figure 3-3 Typical Arrangements of Filter, Regulator and Lubricator and
3.6.4
include:
When connecting air supply components, remove all dirt or debris from the connecting surfaces of
the hoses, pipes, fittings, or threaded fasteners to prevent contaminants from entering the hoist.
Keep airflow restrictions such as quick disconnect fittings, bends, elbows, and adapters to a
minimum.
3.6.5
purging procedures to prevent contaminants or moisture from entering the hoist.
3.7 Mounting Location
3.7.1
are adequate to support the hoist and its loads. If necessary consult a professional that is qualified to
evaluate the adequacy of the suspension location and its supporting structure.
3.7.2
Maximum Air Supply Hose Lengths
Fittings - Important considerations regarding fittings in the hoist’s air supply
Before connecting the hoist to its air supply line, perform the proper draining and
Prior to mounting the hoist ensure that the suspension and it supporting structure
See Section 7.6 for outdoor installation considerations.
16
3.8 Connecting Hoist to Air Supply
3.8.1
OF COMPRESSED AIR TO THE HOIST, AND IN THE CONNECTIONS BETWEEN COMPONENTS.
3.8.2 Shut off the air supply and stop the airflow completely. Lock out and tag out in accordance with ANSI
Z244.1 “Personnel Protection -Lockout/Tagout of Energy Sources”.
HAZARDOUS AIR PRESSURE IS PRESENT IN THE HOIST, IN THE SUPPLY
Figure 3-4 Cord Model Connection to Hoist
Figure 3-5 Pendant and Manipulator Models Connection to Hoist
3.8.3
clear any debris and water.
3.8.4 Apply approximately 10-15 drops (2 to 3 cc/minute) of turbine oil (see approved lubricant under Section
6.0 Lubricants) into the hose before attaching to the hoist.
3.8.5 Make connections to air supply; reference Figure 3-4 or 3-5. Use a reducing adapter at the hoist valve
section for hose sizes larger than 9.5mm (3/8”).
3.8.6
the hoist first (Section 3.9) followed be connecting the air supply.
Before connecting the air supply hose to the hoist, always purge the air hose to
Where conditions dictate, the installation sequence can be reversed by mounting
17
Loading...