Hitachi DH 22PH User Manual

PRODUCT NAME
Hitachi Rotary Hammer
Model DH 22PH
[ NEW FEATURES ]
Most compact and lightweight in its
class
Hitachi’s own internal pressure
adjustment mechanism
The new Model DH 22PH is a 3-mode type of rotary hammer.
This model features ”hammering only” mode designed for chipping and groove digging, in addition to
”rotation + hammering” mode and ”rotation only” mode. The Model DH 22PH is equipped with a variable
lock mechanism available in ”hammering only” mode. The variable lock mechanism enables the tip angle
of a cold chisel or other tool to be selected from among 36 levels.
The main features of the Model DH 22PH are as follows:
(1) Although the Model DH 22PH is a 3-mode type rotary hammer, it is more compact and lightweight than the
2-mode type competitors in the same class (318 mm in overall length and 2.1 kg in weight).
(2) The internal pressure adjustment mechanism prevents grease from leaking.
LIST No. F407
Jun. 2009
(1) Rotation and hammering function
x Drilling anchor holes
x Drilling holes into concrete, tile, brick and similar materials
(2) Rotation only function
x Drilling holes in steel and wood (with chuck adapter)
x Tightening and loosening machine screws and wood screws (with chuck adapter)
(3) Hammering only function
x Light-duty chiseling of concrete
x Groove digging and edging
MARKETING OBJECTIVE
APPLICATIONS
SELLING POINTS
International Sales Division
D
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE
FOR IMPROVEMENT.

Hitachi DH 22PH Specifications

General

Brand	Hitachi
Model	DH 22PH
Category	Rotary Hammer
Language	English

Summary

Key Selling Points

Compactness and Lightweight Design

Highlights the tool's superior compactness and lighter weight compared to competitors.

Internal Pressure Adjustment Mechanism

Explains the mechanism that stabilizes hammering and prevents grease leakage.

Technical Specifications

Competitive Product Comparison

Specification Comparison

Drilling Speed Comparison

Chiseling Performance Comparison

Reference Materials

Tool Structure Explained

Detailed breakdown of the tool's internal components and their functions.

3-Mode Changeover Mechanism

Explains the operation of the rotation, hammering, and combined modes.

Sales Promotion Precautions

Safety Instructions and Handling

Ensures buyer understands handling and safety precautions via manual and caution plate.

Repair Guide

Disassembly and Reassembly Precautions

General safety guidelines for performing tool disassembly and reassembly.

Tool Retainer Disassembly

Step-by-step instructions for disassembling the tool retainer components.

Hammering Mechanism Disassembly

Detailed procedure for taking apart the tool's hammering mechanism.

Retaining Ring and Gear Cover Disassembly

Cylinder Disassembly

Cylinder Reassembly

Change Lever Assembly Insertion

Gear Cover Assembly and Tightening Torque

Additional Wiring Work

Reversing Switch Wiring

Speed Control Switch Wiring

Insulation and Performance Tests

Insulation Test Procedures