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Hitachi DH 24PM User Manual

Hitachi DH 24PM
48 pages
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TECHNICAL DATA
AND
SERVICE MANUAL
ROTARY HAMMER
DH 24PM
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
LIST No. E496 Sep. 2006
D
MODEL
DH 24PM
Hitachi
Power Tools

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Hitachi DH 24PM Specifications

General IconGeneral
BrandHitachi
ModelDH 24PM
CategoryRotary Hammer
LanguageEnglish

Summary

Specifications

Technical Specifications

Detailed technical data including model, capacity, power source, rotation speed, weight, and enclosure materials.

Comparisons with Similar Products

Disassembly and Reassembly Precautions

Disassembly Procedures

Step-by-step guide for disassembling the striking mechanism section of the rotary hammer.

Change Lever Removal

Details the procedure for removing the change lever by pressing the button and rotating it.

Tool Retainer Disassembly

Explains how to disassemble the tool retainer by sliding the grip and removing components.

Tool Retainer Disassembly (Continued)

Details removing parts around the grip, retaining rings, and the chuck holder.

Chuck Holder Removal

Describes using a jig to remove the chuck holder by loosening screws and using a torque wrench.

Cylinder Removal from Gear Cover

Explains how to remove the cylinder from the gear cover using a hand press and jig.

Cylinder and Second Gear Removal

Details removing retaining rings, gears, springs, and other components from the cylinder.

Cylinder and Second Hammer Removal

Describes removing stopper rings, O-rings, dampers, and hammer holders from the cylinder.

Gear Cover and Pinion Sleeve Removal

Explains using a pinion sleeve puller to remove the pinion sleeve from the gear cover.

Reassembly Procedures

Step-by-step guide for reassembling the rotary hammer components in reverse order.

Lubricant Application for Reassembly

Details where and how to apply special grease and Molub Alloy to various components during reassembly.

Mounting the Cylinder

Describes mounting components into the cylinder and fitting the stopper ring using a jig and hand press.

Mounting the Change Lever

Explains how to mount the change lever by pressing the button and adjusting it to the correct position.

Press-Fitting the First Gear

Details press-fitting the first gear onto the second shaft and checking for smooth rotation of the bearing.

Mounting the Oil Seal

Provides guidance on applying grease to the inner circumference of the oil seal before press-fitting.

Internal Pressure Mechanism Reassembly

Describes pushing felt packing, valve, and felt packing into the inner cover assembly.

Mounting Bit Holder or Chuck Holder

Explains how to mount the lock grip, spring, lock ring, and bit holder/chuck holder.

Mounting the Piston

Details the procedure for mounting the piston onto the assembly.

Mounting the Gear Cover

Describes aligning and reinstalling the gear cover, engaging clutch claws, and checking rotation.

Tightening Torque Specifications

Lists the specified tightening torques for various screws used in the assembly and disassembly.

Wiring Diagrams

Wiring Diagram with Noise Suppressor

Illustrates the wiring connections for the product including a noise suppressor.

Internal Wire Arrangement and Wiring

Insulation Tests

No-Load Current Values

Standard Repair Time Schedules

Parts List

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