Rammer R25P Hydraulic Hammer Service Manual – Workshop Repair & Maintenance PDF

Description

Rammer R25P Hydraulic Hammer Service Manual (SMR25PXENG.519)

The Rammer R25P Hydraulic Hammer Service Manual is the full English workshop and field-service reference for the R25P breaker, published under document number SMR25PXENG.519 by Sandvik Mining and Construction Oy, Breakers Lahti, Finland. It carries the machine from first installation and hose connection through daily operating technique, greasing and hydraulic oil requirements, routine inspection, accumulator pressure checks, tool and tool bushing replacement, fault finding and complete workshop disassembly and reassembly of the hammer.

File Details

• Manual type: Service and workshop manual
• Brand: Rammer (Sandvik Mining and Construction Oy, Breakers Lahti)
• Model: R25P hydraulic hammer
• Document number: SMR25PXENG.519
• Language: English
• Page count: 172 pages
• File format: PDF

Chapters Covered

• Introduction – purpose of instructions, identification, manufacturer, CE mark and EC Declaration of Conformity, validity of manual, copyright notice, definitions
• Safety and environmental instructions – safety labels, signal words, general safety symbol, mandatory action symbols, prohibited action symbols, PPE symbols, hazard symbols, labels on the product, user obligations, intended use, prohibited use, foreseeable misuse, modifications and corrections, hazard zone
• Safety section – lifting, packing, transportation and storage, pressurized gas in accumulator, crushing and cutting prevention, removal from package and installation, before use and new users, operation, trapped pressure in hydraulic system, hot substances, containing fluid spillage, cleaning and service, field repair, dismounting, workshop service, scrapping, flammable liquids
• Safety during operation – proper operating practice, airborne pollution, flying fragments in operation, noise, high pressure pinhole leakage, asbestos, radioactive or poisonous applications
• Transportation, storage and setting up – transport position, storage, setting up
• Hammer installation and removal – preparing for installation, installing the hammer, removing the hammer
• Operation – underwater use, greasing device, service indicator, idle blow protection, blank firing, penetrative breaking, impact breaking, checking service interval status, operating techniques, noise, operating temperature range, proper feed force, alignment of the tool, operation precautions, stopping operation, bending the tool, lifting restrictions, carrier cylinders in end position, starting the hammer after maintenance or storage
• Lubrication – recommended greases, manual greasing, automatic greasing, adjusting the grease dose, hydraulic oil
• Maintenance – routine maintenance, inspection and maintenance by the operator, inspection and maintenance by the dealer, releasing pressure from the hammer, checking pressure in the low pressure accumulator, recharging the low pressure accumulator, changing the tool, changing the lower tool bushing, troubleshooting
• Specifications – hammer specifications, main dimensions, mounting bracket, tool specifications, CE mark and EC Declaration of Conformity
• Workshop – disassembly and assembly, releasing hydraulic pressure from hammer, releasing pressure from the low pressure accumulator, adjusting the operating pressure of the hammer, pressure adjusting valve, removing the housing and side plates, releasing pressure from the high pressure accumulator, high pressure accumulator disassembly and assembly, recharging the high pressure accumulator, tie rods, body parts, front head, greasing device, service indicator, service tools

Taken as a whole, the Rammer R25P service manual is a single-source reference that ties the attachment’s mechanical build to its hydraulic behaviour. Instead of leaving a technician to guess at the relationship between the accumulators, the main valve, the piston and the tool, it presents the hammer as a sequenced assembly where every step has a stated torque, a wear limit or a pressure value attached to it. That structure is what makes it usable both for a planned annual service and for a breakdown in the middle of a shift.

Operation, Lubrication and Day-to-Day Maintenance

The operating portion of the R25P hydraulic hammer service manual explains how to apply feed force correctly, how to hold the tool at a 90 degree working angle, when to stop hammering so that blank firing is avoided, and how to recognise the point at which the tool has to be repositioned. Idle blow protection is documented in detail, including the plug, nozzle and flange plug arrangement used to enable or disable it, along with the tightening torques for each of those components.

Lubrication coverage describes both the automatic greasing device and the manual greasing route. It lists acceptable grease criteria, the recommended Rammer tool grease part numbers, the automatic grease cartridge, and the full cartridge replacement sequence. The doser adjustment chapter gives the shield screw torque, the adjusting screw locking nut torque, the linear adjusting range and the basic six-turn setting with its corresponding grease delivery, so the lubrication rate can be tuned to the application rather than left at a default.

Routine maintenance is broken into what the operator checks and what the dealer handles. Operator checks include bracket mounting bolts, tie rods, accumulator bolts, hose and pipe fittings, hydraulic flanges, oil leaks, back head and cylinder connections, tool and bushing wear, tool seal condition, grease cartridge level and hydraulic oil contamination. Dealer service is scheduled at 600 hours or annually, covering resealing, accumulator membrane replacement and safety decal renewal.

Workshop Disassembly, Assembly and Pressure Settings

The workshop section is where the Rammer R25P Hydraulic Hammer Service Manual becomes a genuine rebuild document. It starts with the pressure release procedure that must precede any plug or valve removal, then works through the low pressure accumulator, the operating pressure adjustment valve, the housing and side plates with their buffer and wear plate thickness limits, the high pressure accumulator and its nitrogen precharge, the tie rods with their staged pre-tightening torques and additional tightening angle, the body parts including piston and seal carrier, and the front head with its upper and lower tool bushings and thrust ring wear limits.

Separate chapters cover the automatic greasing device down to the doser body, pistons, shims, seals and check valve, and the Ramdata II service indicator with its mounting torque and LED pulse status reporting. A closing service tools chapter lists the special tooling required, including the accumulator charging kit, bushing extraction tool, pressure gauge assemblies, accumulator assembly stand, main valve assembly tool and doser body assembling tool, plus the standard torque wrenches and sockets needed for the job.

Specifications, Tools and Troubleshooting

The specifications chapter records the R25P’s working weight, hammer weight, impact rate, operating pressure, pressure relief settings, oil flow range, accumulator charging pressures, maximum back pressure, input power, tool diameter, line connection sizes, minimum pressure and return line diameters, oil temperature and viscosity windows, carrier weight class and declared noise levels. Tool specifications list the chisel, moil point, blunt and pyramid options with their part numbers, lengths, weights and diameters, and the main dimensions and mounting bracket drawings are included for fabrication reference.

The troubleshooting chapter runs through the failure modes a technician actually meets: the hammer not starting, irregular operation with full or reduced blow power, impact rate slowing down, oil overheating, recurrent tool failure and automatic greasing device faults. Each entry pairs a symptom with the checks and corrections that follow from it, which shortens the path from complaint to repair considerably.

Why This Manual Matters for R25P Owners and Workshops

Owning a hydraulic hammer without the correct service data means guessing at precharge pressures, torque figures and wear limits, and those guesses are expensive. This Rammer R25P workshop manual supplies the actual values: tie rod tightening in stages to 640 Nm with a 100 degree final angle, accumulator mounting screws at 340 Nm, the high pressure precharge at 40 bar, the low pressure precharge window at room and operating temperature, tool bushing wear limits, buffer and wear plate minimum thicknesses, and the correct nitrogen-only charging procedure.

IMAGES PREVIEW

With it on hand you can install and remove the hammer correctly, keep the greasing dose matched to the work, diagnose an impact problem instead of replacing parts at random, change the tool and lower tool bushing safely, rebuild the front head, service the accumulators and bring the hammer back into specification. Everything is delivered as an instant PDF download after payment, with no shipping and no waiting, readable on a laptop, tablet or phone in the cab and printable for the workshop bench.