aci LH Series User manual

Lever Hoists
Lever Hoists PAGE: 1
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
OPERATION MANUAL
This operation manual is intended as an instruction manual for trained personnel
who are in charge of installation, maintenance, repair etc.
Before equipment use, please read this operation manual carefully.
Serial Number: ____________________________
Date Purchased: __________________________

Lever Hoists PAGE: 2
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
TABLE OF CONTENTS
1.0 WARRANTY ...............................................................................................................................................................3
2.0 SAFETY PRECAUTIONS............................................................................................................................................4
2.1 Safety Alert Symbols .........................................................................................................................................4
3.0 GENERAL DESCRIPTION .........................................................................................................................................5
3.1 Hoist Construction.............................................................................................................................................5
4.0: PREPARATION & PROCEDURES ............................................................................................................................6
4.1 Prepare for use..................................................................................................................................................6
4.2 Attachment Points .............................................................................................................................................6
4.3 Mounting the Hoist ............................................................................................................................................6
4.4 Pre-Operational Checks & Trial Operation .........................................................................................................6
5.0 OPERATING INSTRUCTIONS ...................................................................................................................................6
5.1 Hoisting (Pulling & Lifting) and Lowering ...........................................................................................................6
5.2 Hoist Operation: Free Chain ..............................................................................................................................7
5.2.1 Principle ...............................................................................................................................................7
5.2.2: Operation.............................................................................................................................................7
6.0: PRECAUTIONS WHILE OPERATING .......................................................................................................................8
6.1 Warnings...........................................................................................................................................................8
6.2 Attaching the Load ............................................................................................................................................8
7.0: ROUTINE CARE, INSPECTION, AND MAINTENANCE ............................................................................................8
7.1 General .............................................................................................................................................................8
7.2 Inspection Classification....................................................................................................................................9
7.2.1 Frequent/Visual Inspection ....................................................................................................................9
7.3 Frequent Inspection.........................................................................................................................................10
7.4 Periodic Inspection..........................................................................................................................................10
7.5 Inspection Schedule........................................................................................................................................10
7.6 Chain Inspection .............................................................................................................................................11
7.7 Hook Inspection ..............................................................................................................................................11
7.8 Reject Opening ...............................................................................................................................................11
7.9 Storage ...........................................................................................................................................................11
7.10 Lubrication ....................................................................................................................................................11
7.10.1: Recommended Lubricants...............................................................................................................12
8.0: TROUBLESHOOTING GUIDE.................................................................................................................................13
9.0 DIMENSIONS & SPECIFICATIONS.........................................................................................................................14
10.0: EXPLODED VIEW & PARTS LIST .........................................................................................................................15
10.1 Exploded View...............................................................................................................................................15
10.2 Parts List .......................................................................................................................................................16

Lever Hoists PAGE: 3
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
1.0 WARRANTY
Every product is thoroughly inspected and tested before it is shipped from the factory. If any problem develops within
one year, return the product prepaid to the factory. If an inspection reveals that the problem is caused by defective
workmanship or material, repairs will be made without charge and the product will be returned with the shipping prepaid.
Excluded Items
This warranty does not cover:
•Deterioration caused by normal wear, abuse, chemical or abrasive actions, improper maintenance or excessive
heat.
•Problems resulting from repairs, modifications, or alterations made by people other than factory or ACI
representatives.
•If the product has been abused or damaged due to an accident.
•If repair parts or accessories other than ACI equipment are used on the product; they are warranted only to the
extent that they are warranted by the manufacturer of said parts or accessories.
Remarks
EXCEPT AS STATED HERE, ACI MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES
FOR A PARTICULAR PURPOSE.
Alterations or modifications of equipment and use of non-factory repair
parts can lead to dangerous operation and injury.
To avoid injury:
DO NOT alter or modify equipment.
DO NOT use equipment to lift, support or otherwise transport people.
DO NOT suspend unattended loads over people.

Lever Hoists PAGE: 4
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
2.0 SAFETY PRECAUTIONS
2.1 Safety Alert Symbols
Throughout this manual are steps and procedures that can prevent hazardous situations, the following symbols are used
to identify the degree or level of hazard seriousness.
DANGER, WARNING AND CAUTION NOTICE
Symbol Description
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 in minor or moderate injury or
property damage.
Notice
Notifies people of installation, operation or maintenance
information which is important but not directly hazard
related.
Failure to read and comply with any of the limitations noted in this manual can result in serious bodily
injury or death, and/or property damage.

Lever Hoists PAGE: 5
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
3.0 GENERAL DESCRIPTION
This document provides information and maintenance of ACI Lever Hoist/ Puller. Operators and persons maintaining the
hoist should be familiar with this manual. Following the precautions, procedures and maintenance practices in this
manual should ensure long and reliable operation.
People responsible for the installation operation, and or maintenance of the hoisting equipment should be familiar with
the American National Standard ANSI B30.21 for guidelines on the safe operation of lever hoists. That document
contains rules on inspection requirements and records that may be required by some of the regulatory agencies.
3.1 Hoist Construction
The Steel Body Lever Hoist/ Puller is a dependable way to accurately position heavy loads, loading and lifting freely
suspended loads within the hoist’s rated load. The reversing lever and free-chain wheel provide an ease of control, even
with work gloves. The hoist can be used in confined spaces due to the short handle and low handle chair.

Lever Hoists PAGE: 6
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
4.0: PREPARATION & PROCEDURES
4.1 Prepare for use
When unpacking the hoist, inspect carefully for any damage that may have occurred during shipping. Check for loose,
missing, or damaged parts.
Lubricate the chain along the whole length with a good quality chain and wire rope lubricant. Make sure the structures
supporting the hoist are strong enough to support the entire rated load.
4.2 Attachment Points
WARNING: Prior to attaching the hoist ensure that all attachment points, suspension components and supporting
structure are adequate to support the hoist and its load. If necessary consult a professional that is qualified to evaluate
the adequacy of the suspension location and its supporting structure.
4.3 Mounting the Hoist
•Hook Mounted to a Fixed Location – Attach the hoist’s top hook to the fixed suspension point.
•Ensure that the fixed suspension point resets on the center of the hook’s saddle and that the hook’s latch is
engaged.
4.4 Pre-Operational Checks & Trial Operation
•Confirm the adequacy of the rated capacity for all slings, chains, wire ropes and all other lifting attachments
before use. Inspect all load suspension members damage prior to use and replace or repair all damages parts.
•Verify and correct all chain irregularities prior to operating the hoist.
•Record the hoist’s Model Number & Serial Number (from the plate on the hoist).
•Ensure that the hoist is properly installed to a fixed point.
•Ensure that all nuts, bolts, and split pins (cotter pins) are sufficiently fastened.
•Confirm proper operation
oBefore operating read and become familiar with Operation.
oBefore Operating ensure that the hoist meets the Inspection, Testing, and Maintenance requirements of
ANSI/ASME B30.21.
oBefore operating ensure that nothing will interfere with the full range of the hoist’s operation.
5.0 OPERATING INSTRUCTIONS
5.1 Hoisting (Pulling & Lifting) and Lowering
To lift or pull a load, turn the reversing lever to the UP position and move the handle in a clockwise direction. To lower a
suspended load, turn the reversing lever to the DOWN position and move the handle in a counterclockwise direction.
CAUTION: With no load on the hoist, reciprocating the handle may result in only a back and forth movement of the chain
with no overall hook movement. When this happens, the chain may be positioned by applying a light pull in the chain
with the free hand, or by using the free chain feature.

Lever Hoists PAGE: 7
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
5.2 Hoist Operation: Free Chain
5.2.1 Principle
•Free chaining allows the load chain to be moved freely because the brake is released under no load situations.
•Pulling the free knob actuates the internal spring to release the mechanical brake allowing the load chain to be
pulled in either direction to the desired length.
•The brake is engaged during lowering or lifting the load.
5.2.2: Operation
•DO NOT operate the hoist Free Knob while a load is applied to the hoist.
•DO NOT touch the hoist Free Knob during lifting or lowering of the load.
•ALWAYS check that the selector is placed in the proper position.
•Set the Selector to the “N” position. The Selector is located under the Free Knob on the hand lever.
•Pull the Free Knob pout. The Free Knob turns counterclockwise and “snaps” out.
•Pull the load chain to move the hook to the desired position.
•DO NOT pull the chain suddenly in the free chain mode. Excessive pulling may set the brake and not allow the
load chain to move. If this occurs the hoist must be reset.
•To reset the hoist to operate, rotate the Free Knob clockwise while pulling lightly on the load side chain. Once
slack is removed, the Free Knob “snaps” in. This resets the brake and allows the hoist to be operated with the
hand lever.
•DO NOT attempt to use the free-chain feature while there is any load on the hoist.
Table 5.2.2.1
Lever Hoist Operation
Selector Position Lever Rotation Load Movement
UP Clockwise Lift
DOWN Counterclockwise Lower
Table 5.2.2.2
Signal Warnings
Signal Color Load Status Instructions
Green Safe Load Continue Operation
Red Overload DO NOT Continue Operation

Lever Hoists PAGE: 8
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
6.0: PRECAUTIONS WHILE OPERATING
6.1 Warnings
•Do not lift or pull more than the rated capacity.
•Do not use a handle extension (cheater bar). The hoist is designed to pull rated loads with low handle effort. If a
cheater bar seems necessary to lift the load, the hoist is overloaded.
•Stand clear of the load at all times. The operator should have sufficient room to use the hoist without
endangering himself.
6.2 Attaching the Load
1. Be sure there are no twists in the load chain as it enters the hoist. This condition should be constantly checked
on double chain hoists because it is possible for the load block to be "capsized" or flipped over one or more
times, putting twists in the chain. The presence of a twist may not be obvious when the hook block is in the
lowered position, but can cause serious chain binding when the hook is in its fully raised position.
2. Never load on the end of the hook. Use attachments that will seat in the saddle of the hook
3. Make sure that slings and other rigging are in good condition and have sufficient capacity. Never wrap the hoist
chain around a load.
**DO NOT OPERATE THE HOIST FROM AN OFF-BALANCE POSITION.
OPERATOR SHOULD HAVE FIRM FOOTING OR BE OTHERWISE SECURED BEFORE OPERATING THE HOIST.
Check the hoist each time it is used by lifting the load just clear of its supports and checking to be sure that the load is
secure in the hook and that the hoist brake is holding the load without slipping.
•Never raise the hook block into the bottom of the hoist or run the hook down until the slack chain is pulled tight.
•Never attempt to free-chain the hoist with any load on the hook.
•Do not leave a suspended load unattended.
•Do not throw or drop the hoist, or drag it along the ground.
•Do not use a damaged or malfunctioning hoist.
Lifting a load with two hoists is not recommended. If unavoidable, care must be taken that neither hoist is overloaded.
7.0: ROUTINE CARE, INSPECTION, AND MAINTENANCE
7.1 General
The inspection procedure herein is based on ANSI/ASME B30.21. The following definitions are from ANS/ASME B30.21
and pertain to the inspection procedure below.
•Designated Person: a person selected or assigned as being competent to perform the specific duties to which
he/she is assigned.
•Qualified Person: a person who, by possession of a recognized degree or certificate of professional standing, or
who, by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or
resolve problems relating to the subject matter and work.

Lever Hoists PAGE: 9
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
•Normal Service: that distributed service which involves operation with randomly distributed loads within the
related load limit, or uniform loads less than 65% of rated load for not more than 15% of the time.
•Heavy Service: that service which involves operation within the rated load limit which exceeds normal service.
•Severe Service: that service which involves normal or heavy service with abnormal operating conditions.
7.2 Inspection Classification
Table 7.2.1
Inspection Classification
TYPE DESCRIPTION
Initial Inspection
Prior to initial use, all new, altered, or modified hoists shall be inspected by a
designated person to ensure compliance with the applicable provisions of this
manual
Inspection
Classification
The inspection procedure for hoists in regular service is divided into two general
classifications based upon the intervals at which inspection should be performed.
The intervals in turn are dependant upon the intervals at which inspection should
be performed. The intervals in turn are dependent upon the nature of the critical
components of the hoist and the degree of their exposure to wear, deterioration, or
malfunction. The two general classifications are herein designated as FREQUENT
and PERIODIC, with respective intervals between inspections as defined below.
7.2.1 Frequent/Visual Inspection
Frequent inspections are visual examinations by the operator or other designated personnel with interval per the
following criteria.
•Normal Service – Monthly
•Heavy Service – Weekly to Monthly
•Severe Service – Daily to Weekly
•Special or Infrequent Service – As recommended by a qualified person before and after each occurrence.
Visual inspection will be performed by a qualified person who will make records of apparent external conditions to
provide the basis for a continuing evaluation.
A qualified person shall determine whether conditions found during inspection constitute a hazard and whether
maintenance of the equipment is required.
•Normal Service – Yearly
•Heavy Service – Semi-Annually
•Severe Service – Quarterly
•Special or Infrequent Service – As recommended by a qualified person before and after each occurrence.
Written, dated and signed inspection reports should be maintained on all critical items; such as safety devices, brakes,
hooks, ropes, chains, etc. All worn, damaged or malfunctioning parts should be repaired or replaced to maintain a SAFE
operating hoist. Warning labels affixed to the hoist or trolley should be kept clean and visible at all times. Warning labels
should be replaced if loose or illegible.

Lever Hoists PAGE: 10
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
7.3 Frequent Inspection
•All functional operating mechanisms for proper operation and adjustment, maladjustment and unusual sounds.
•Hoist braking system for proper operation
•Hooks and latches in accordance with ANSI/ASME B30.10
•Hook latch operation
•Load chain reeving for compliance
•Hoist Lever for bends and cracks
•Hoist support for damage
7.4 Periodic Inspection
•Requirement 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 bots, shafts, gears, bearings, pins, rollers and locking and clamping
devices.
•Evidence of damage to hook retaining nuts or collars and pins, and welds or rivets used to secure the retaining
members.
•Evidence of damage or excessive wear of load and idler sheaves
•Evidence or worn, glazed or oil contaminated friction disks; worn pawls, cams or ratchet; corroded, stretched, or
broken pawl springs in brake mechanism.
•Evidence of damage to supporting structure
•Function label on hoist for legibility
•Warning label properly attached to the hoist and legible
•End connections of load chain stopper link
7.5 Inspection Schedule
Table 7.5.1
Inspection Schedule
Interval Inspection
Daily
a. Check the hooks and the hook latches for cracks or deformities. Twisted
hooks or hooks with throat openings more than the reject openings
listed in Table 5-1 should be replaced.
b. Check chain for wear and twisting.
c. Check brake for drift.
Quarterly a. Check for loose screws, nuts, etc.
b. Check load sprocket and hand chain wheel for wear.
Annually
a. Inspect for worn gears, pawl, spring, ratchet and shafts.
b. Check for worn break discs.
c. Inspect chain in kerosene or other non-corrosive solvent and inspect for
wear, nicks, or distortion of any kind.

Lever Hoists PAGE: 11
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
7.6 Chain Inspection
Inspect the chain for wear or corrosion. Push Links together and inspect the mating surface between the links. Pay
special attention to the links that most often through the hoist.
7.7 Hook Inspection
Inspect the hooks for deformation, chemical damage and cracks. Hooks damaged having a throat opening greater than
the reject opening (shown below) must be replaced.
7.8 Reject Opening
Table 7.8.1
Reject Opening Sizes
Capacity (ton) Standard dimension (in) Reject Opening (in)
3/4 1.10 > 1.21
1 1/2 1.32 > 1.45
3 1.57 > 1.73
6 1.67 > 1.84
7.9 Storage
•Never leave or store the hoist with the brake locked. Loosen the brake by operating the hoist as if lowering a
load.
•Avoid leaving the hoist in a wet or corrosive environment. Clean and dry the hoist before storage whenever it has
been exposed to dirt or water.
•Inspect the hoist for signs of wear, damage, or malfunctioning parts. Do not return a defective hoist to a storage
area without clearly marking it as defective.
7.10 Lubrication
a. a. Good lubrication is vital to long chain life. The chain should be kept well oiled with chain Lubricant. Be sure that
the oil is worked into the area between the links.
b. b. If the hoist is disassembled for inspection or repair re-lubricate the moving parts according to the Lubricant table.
If the chain is worn or damaged, replace the entire
chain with new chain supplied by the hoist
manufacturer. Do not substitute. Do not attempt to
weld chain or use connecting links.

Lever Hoists PAGE: 12
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
Table 7.10.1
Lubrication Schedule
PART DESCRIPTION FREQUENCY
Gears, bearings Check operation of the part Annually
Pawl pivot pin, guide
roller pin and hook
shanks
Check operation of the part Annually
Chain wheel treads Check operation of the part Quarterly
Chain
Lubricate chain, under normal usage
Lubricate chain, under heavy usage require to be
lubricated more frequently
Weekly
7.10.1: Recommended Lubricants
Table 7.10.1.1
Recommended Lubricants
Part Lubricant
Gears, bearings, pawl pivot pin, guide roller
pin, hook shanks, and chain wheel treads Any good quality gear grease
Chain Chain Lube
Brake parts, ratchet teeth Do not Lubricate
The brake surfaces must be kept free of any
trace of oil or grease. Apply lubricant
sparingly to the parts near the brake to avoid
oil contamination of the brake.

Lever Hoists PAGE: 13
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
8.0: TROUBLESHOOTING GUIDE
Problem Possible Causes Corrective Action
Pinion shaft does not return to
position after free chaining.
1. Wear of the spline section of
the pinion shaft.
2. Deformation or damage of the
return spring.
3. Mechanism fouled with foreign
matter such as dirt and dust.
Replace with new parts.
Replace with new parts.
Disassemble and clean.
Slip caused by ineffective braking. 1. Worn out friction discs.
2. Oil on the braking surface.
3. Incorrect assembly of the brake
system.
Replace with new ones.
Disassemble and clean.
Assemble correctly.
Load dropped while lowering. 1. Damaged friction discs.
2. Foreign matter in the braking
system.
Replace with new ones.
Disassemble and clean.
Jammed operating handle. Over-tightening of the brake. Operate the lever hoist as if
lowering a load.
Noises during hoisting and
lowering operation.
Wear or deformation of the load
chain and load sheave. Replace with new parts.
Operating handle becomes
difficult to operate during lifting or
lowering operation.
1. Over-hoisting or over-lowering.
2. Twist in the load chain causing
it to get caught between load
sheave and from the load chain.
Operate the hoist in opposite
direction.
Operate the hoist in opposite
direction and remove the twist
load chain guide.

Lever Hoists PAGE: 14
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
9.0 DIMENSIONS & SPECIFICATIONS
0.75T, 1.5T & 3T
6T
Model LH-015 LH-030 LH-060 LH-120
Capacity (tons) 3/4 1 1/2 3 6
No. of columns of load chain 1 1 1 2
Handle pull rated loads (lbs) 60 66 75 83
Distance (in)
A 5.83 6.81 7.87 7.87
B 3.43 3.90 4.41 4.41
C 5.20 5.71 7.83 9.06
D 10.94 14.88 15.28 15.28
E 1.1 1.3 1.6 1.7
Ø 1.40 1.67 1.97 2.09
H 13.0 15.7 20.5 25.2
Net weight (lbs.)
for 5 ft lift 15.21 24.0 45.6 62.0
Packing measurement (in) 15 x 5 x 6.7 18.9 x 5.1 x 7.9 21.8 x 7.3 x 8.9 21.8 x 7.9 x 8.9
Extra weight per feet of extra
lift (lbs.) 0.53 0.94 1.48 2.96

Lever Hoists PAGE: 15
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
10.0: EXPLODED VIEW & PARTS LIST
10.1 Exploded View
6 Ton
6 Ton

Lever Hoists PAGE: 16
Model LH
689 SW 7th Terrace, Dania Beach, FL 33004 | [phone] Visit WWW.ACIHOIST.COM for the most current information
10.2 Parts List
Item # Part Name/Description
1 Gear case assembly
2 Drive shaft assembly
3 Drive shaft
4 Splined gear
5 Side plate assembly A
7 Load sheave
8 Guide plate
9 Chain Leader A
10 Stripper
11 Chain Leader B
12 Side plate assembly B
13 Pawl spring
14 Pawl
15 Disk hub
16 Free Spring
17 Friction disk
18 Ratchet disk
19 Lever cover assembly
20 Change over gear
21 Selector shaft
22 Change over pawl
23 Spring shaft
24 Change over spring
25 Lever handle assembly
26 Selector lever
27 Name plate
28 Hand wheel
29 Cover
30 Retainer wire
Item # Part Name/Description
31 Bushing
44 Lever handle cover
45 Hook assembly
46 Double spring
47 Safety latch
48 Top pin
49 Top Chain pin
50 Bottom hook assembly
51 Chain pin
54 Chain ring
55 Load chain
56 Idler sheave assembly
57 Hook block component
60 Prevailing torque type nut
62 Snap ring
63 Snap ring
64 Screw
65 Washer
66 Spring pin
67 Rivet
68 Spring washer
69 Screw
70 Castle nut
71 Split pin
75 Prevailing torque type nut
76 Screw
77 Prevailing torque type nut
82 Screw
84 Prevailing torque type nut