Hitachi L Series User Manual

Please be sure to hand it over to the customer using.
The customer using should read it before use.
•
This instruction manual explains the handling of Hitachi L-type Electric chain hoist in details so please
ensure to read over it until the end and use it correctly. Facility managers and workers who will use the
equipment should read this manual.
•
This instruction manual describes the items specific to the L-type Electric chain hoist. The attached
"Electric chain hoist owner’s manual" describes the general handling method of Electric chain hoists, so
read the manuals together and use them correctly.
•
When the installation / operation / maintenance are inappropriate, the electric chain hoist cannot be used
smoothly, and may cause unexpected troubles and accidents.
•
After reading, please carefully store all the manuals together and utilize these during maintenance and
inspection.
•
Please note that we do not guarantee Electric chain hoists that are remodeled.
Hitachi Electric Chain Hoist
Service Manual
L - type (single speed)
LN - type (dual speed)
LS - type (single phase)
Original version

Hitachi L Series Specifications

General

Phase	1 or 3
Control Voltage	24V
Chain Falls	1 or 2
Load Chain Grade	Grade 80
Ambient Temperature Range	-20°C to 40°C
Duty Class	H4
Capacity	0.5 to 5 tons

Summary

Safety Precautions Overview

Warning Display Ranks Explained

Explains danger, warning, and caution ranks for safety precautions.

Prohibited and Instruction Symbols Explained

Defines symbols for prohibited actions and required instructions.

Electric Chain Hoist Product Specifications

Mounting Method Guidelines

Mounting Precautions

Electric Wiring and Grounding

Wiring Connection Diagrams

Installation Steps

Important Cautions for Use

Maintenance and Inspection Procedures

Daily Inspection Procedures

Emphasizes routine checks before use and stopping immediately if abnormalities are found.

Pre-Operation Inspection

Covers checks for operation without load and braking effectiveness under rated load.

Periodic Voluntary Inspection

Recommends monthly and annual inspections by experts and using genuine parts.

Disassembly and Assembly Procedures

Provides step-by-step instructions for disassembling hoist components.

Electromagnetic Brake Inspection

Explains how to check the wear and operation status of the electromagnetic brake.

Electromagnetic Brake Gap Adjustment

Details the procedure for adjusting the electromagnetic brake gap.

Hook Inspection Guide

Guides on inspecting hooks for cracks, wear, opening size, and thickness.

Chain Inspection Guide

Outlines methods for checking chain lubricant, elongation, and wear.

Push-button Switch Inspection

Limit Switch Inspection

Gear Inspection and Wear Limits

Sprocket Inspection