Takeuchi TKB1702-S Hydraulic Hammer Service Manual

Out on demolition or rock trenching jobs, this TKB1702-S hammer takes a real beating—dust, rebar, mis-hits, and long, hot runs. This service manual is what I’d keep on hand when the hammer starts losing impact power, running hot, or leaking around the tool bushings. It walks you through how to confirm what’s actually failed before you start throwing parts at it—whether you’re chasing a gas charge issue, a sticking valve, or worn seals after a hard season.

Applications & Use Cases

• Trace low impact power by following the manual’s diagnostic checks before blaming the carrier or hydraulics.
• Isolate internal leaks and decide if you’re doing a seal kit, piston inspection, or a full teardown.
• Follow the disassembly sequence so you don’t damage bushings, pins, or valve components during overhaul.
• Use the reassembly and adjustment guidance to correctly align parts and verify clearances before putting it back in service.
• Confirm gas precharge and basic functional tests after a rebuild so the hammer hits correctly from the first start.

FAQ

Q: Can I use this manual on a tablet in the field?

A: Yes, it’s practical to keep it on a tablet or laptop; just zoom in on diagrams when you’re at the hammer.

Q: Should I still print pages from this manual?

A: Many techs print the steps and exploded views they need for a specific job, then mark notes or torque checks as they go.

Safety Note

Always bleed pressure, support the hammer securely, and follow lockout procedures before opening any hydraulic or gas-charged components.

Takeuchi TKB1702-S Hydraulic Hammer Index:

Operation
Foreword ……………………………..
This
Important safety information
Warranty ….. ….. ….. ….. …………………………….
Spare part
Product numbers………………………. .. .
Model and serial number ….. ….. ….. ….
Manufacturer…………………………………………
Copyright
Modifications and corrections to the product
Product introduction ….. ….. ….. ….. …..
Overview……………………………………………..
Removal from package ….. ….. ….. ….. …………
Lifting instructions ….. ….. ….. ….. ….. .. ….
Main
Restrictor valve……………………………
Greasing device ….. ….. ….. ….. …….
Safety……………………. .
General safety
Safety instructions…………………….. .
Operation……………………..
Operating instructions ….. ….. ….. ….. ………… t
Daily operation ….. ….. ….. ………….. ..
Mounting and dismounting the hammer …..
Tuming hammer left- or right-handed ….. …
Special conditions of use……………………….
Storage……………………………….

Lubrication
Hammer tool
Recornmended greases
Automatic greasing ….. ….. ….. ….. …
Adjusting the dose
Manual
Carrier hydraulic oil .
Requirements for hydraulic oil………
Oil cooler……………………………..
Oil filter …. ….. ….
Maintenance
Routine maintenance
Inspection and maintenance
by the operator……………………………… ……
Inspection and maintenance by the dealer..
Maintenance intervals
in special applications
Other maintenance procedures …. ….. ….. ….
Changing the tool ….. ….. ….. ….. ….. …
Wear limits and lubricants for tool removal..
Removal of tool

Changing the lower tool bushing…………….
Wear limits and lubricants
for lower tool bushing………………..
Lower tool bushing extraction tool…………
Removal of lower tool bushing …. ….. ….. …
Installation of lower tool bushing……………
Troubleshooting………………………
The hammer does not
The hammer operates irregularly
but the blow has full power ….. ….. ….. ….. ..
The hammer operates irregularly
and blow has no power……………………….
Impact rate slows down ….. ….. ….. ….. …….
The hammer does not stop or has run-on
Oil overheats……………………………………..
Recurrent tool
Automatic greasing device problems……..
Further
Specifications
Hammer specifications
Technical specifications ….. ….. ….. ….. ….. ..
Main
Mounting bracket specifications ….. .. ….. …
Tool specifications…………………………………

Workshop
Disassembly and assembly……………….. ..
Safety
Main components
Releasing hydraulic pressure from hammer
Housing and vibration dampening ….. ….. ….
Pressure
Charging accumulator…………………………..
Main
Restrictor valve…………………………………..
Pressure control valve ….. ….. ….. ….. ….. … …
Idle selector ….. ….. ….. …..
Tie rods….
Body parts
Front head ….. ….. ….. ….. ………………………
Greasing
Underwater operation ….. ….. ….. ….. ….. …..
Testing
Measuring hammer circuit ….. ….. …
Measuring hammer operating pressure ….
Service tools…………………………………………
Special service tools
Standard service

Takeuchi