NPK E Series - High Heat Application

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HIGH HEAT APPLICATION

NPK offers a high heat conversion kit for the E204 through E207 hammers.

HAMMER

KIT PART

MODEL

NUMBER

E204

E2040-9505

E205

E2050-9513

E207

E2070-8055

Kit includes:

Hex Head Cap Screw

Boom Pin Collar

Hex Nut

Retaining Pin

NOTE: No special seals are required. Standard seals will work with “MINERAL OIL”

based flame-retardant oil.

NOTE: Water glycol-based fluid may shorten seal life.

NOTE: Special protection for the hydraulic hoses is recommended.

Main Page

Table of Contents2
Safety4
Introduction6
Carrier Machine Compatibility7
Hammer Specifications8
Structure9
- Structural Drawing9
Hammer Serial Number Location12
- SERIAL NUMBER LOCATION (Sn1)12
Hydraulic Installation13
- Backhoe/Excavator Hammer Lines13
- Skid Steer Hammer Lines13
- Hammer Control Valve13
- Skid Steer Hammer Flow Control Valve (Optional)14
- Prevention of Contamination15
- Hydraulic Quick Disconnects16
Mounting Installation18
- BACKHOES and EXCAVATORS18
- Skid Steers18
Removal from the Carrier18
- Removal from the Skid Steer19
- Mounting to the Carrier19
  - BACKHOES and EXCAVATORS19
- Mounting to the Skid Steer19
Lubrication20
- Greasing Procedure20
- Correct Function of Greasing and Grease Intervals21
- Correct Grease for Hydraulic Hammers21
  - Npk Hammer Grease22
- Auto Lube Systems23
- Auto Lube Grease Line Pre-Filling24
- Hammer Mounted Auto Lube Grease Line Pre-Filling27
  - Priming the Grease Line27
- Lubricant Terms and Definitions29
Auto Lube / Underwater Port Identification31
High Heat Application32
Start-Up Operation33
- Hammers that Are New, Rebuilt, or Have Been Inactive33
- Before Starting the Hammer34
- Daily Start-Up Procedure34
Operation35
- Safe Operating Instructions35
- Operating Techniques & Precautions36
- Tamper Pad Operation41
Impact Energy Transmission through Tools42
- Impact Stress Waves at the End of the Tool43
Tool Breakage44
- Tool Breakage Due to Excessive Bending Moment44
- Characteristics of the Broken Section44
- Tool Breakage Due to Excessive Wear of the Tool Holder Bushings45
- Chipping in Retaining Pin Slot47
- Deformation of the Retaining Pin Slot Sides47
- Deformation of the Tool Tip48
- Chipping of a Moil Point Tool Tip49
- Chipping of a Chisel Tool Tip49
- Temperature Related Tool Problems50
- Tool Breakage Due to Corrosion51
- Tool Breakage Due to Defective Material51
Routine Inspection and Maintenance52
Weekly Inspection53
Types and Applications of Tool54
- Standard Tools54
- Accessory Tools54
Tool Identification55
Tools56
- Changing the Tool56
- Maximum Tool to Tool Bushing Clearance57
- Tool Inspection59
- Chisel Tool Sharpening60
- Standard Length for Npk Tools61
- Tool Retaining Pin Inspection62
Torque Values for Hammer Fasteners63
Gas Charge64
- Nitrogen Gas Pressure64
- Gas Charging Kit64
- Checking the Gas Pressure65
- Charging the Hammer67
- Discharging the Gas Pressure68
Storage of Hydraulic Hammer69
Warranty Registration for New Units70
Tool Warranty71
Warranty Statements73
Notes and Records77

NPK E Series - High Heat Application

Table of Contents

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