EasyManua.ls Logo

NPK GH7 User Manual

NPK GH7
71 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
HYDRAULIC HAMMER
OPERATORS MANUAL
GH SERIES HAMMERS
GH7 GH18
GH9 GH23
GH10 GH30
GH12 GH40
GH15 GH50
© Copyright 2014 NPK Construction Equipment, Inc. www.npkce.com H050-9630G GH7 - GH50
Hyd Ham Operators Manual 4-14
"Use Genuine NPK Parts”
7550 Independence Drive
Walton Hills, OH 44146-5541
Phone (440) 232-7900
Toll-free (800) 225-4379
Fax (440) 232-6294

Table of Contents

Other manuals for NPK GH7

Question and Answer IconNeed help?

Do you have a question about the NPK GH7 and is the answer not in the manual?

NPK GH7 Specifications

General IconGeneral
BrandNPK
ModelGH7
CategoryTools
LanguageEnglish

Summary

Safety

Hydraulic Installation

Mounting Installation

Lubrication

Greasing Procedure

Outlines the manual greasing process for hammers without an Autolube system.

Correct Grease and Grease Intervals

Explains the proper type of grease and the recommended intervals for application.

Start-Up Operation

Operation

Safe Operating Instructions

Provides essential safety guidelines for operating the hydraulic hammer.

Operating Techniques & Precautions

Explains proper techniques and precautions for efficient and safe hammer operation.

Impact Energy Transmission Through Tools

Routine Inspection and Maintenance

Demolition Tool Lubrication

Emphasizes the importance of greasing the tool bushing contact area and checking the autolube reservoir.

Weekly Inspection

Types and Applications of Tool

Tools

Tool Warranty

Standard Demolition and Accessory Tools Warranty

Outlines the 30-day warranty for demolition and accessory tools.

Tool Breakage

Tool Breakage Due to Excessive Bending Moment

Explains how bending moments cause tool breakage and provides examples.

Tool Breakage Due to Excessive Wear of Tool Holder Bushings

Details how worn bushings lead to tool breakage and outlines preventative measures.

Chipping in Retaining Pin Slot

Explains how blank hammering causes chipping at the retaining pin slot.

Deformation of the Retaining Pin Slot Sides

Describes how tool twisting and contact with the retaining pin cause deformation.

Deformation of the Tool Tip

Details how overheating and continuous hammering in one position deforms the tool tip.

Chipping of a Moil Point Tool Tip

Explains why moil tools might chip on hard rock.

Chipping of a Chisel Tool Tip

Discusses chipping of chisel tips due to undersized hammers or overheating.

Torque Values for Hammer Fasteners

Gas Charge

Nitrogen Gas Pressure

Specifies the correct nitrogen gas pre-charge pressures for ambient and operating temperatures.

Checking the Gas Pressure

Provides a step-by-step procedure for measuring the nitrogen gas pressure in the hammer.

Charging the Hammer

Details the procedure for charging the hammer with nitrogen gas using the charging kit.

Discharging the Gas Pressure

Outlines the procedure for safely releasing the nitrogen gas pressure from the hammer.

Warranty Statements

Related product manuals