background image

HPB25 Hydraulic Paving Breaker

Greenlee Tools, Inc.

4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070

4

Do not reverse hydraulic flow. Operation with 

hydraulic flow reversed can cause tool malfunction. 

Connect the supply (pressure) hose and return (tank) 

hose to the proper ports.
Failure to observe this warning could result in severe 

injury or death.

Do not change accessories, inspect, adjust or 

clean tool when it is connected to a power source. 

Accidental start-up can result in serious injury.
Failure to observe these warnings could result in 

severe injury or death.

Serious injury can result if the operator does not 

maintain control of the tool.
•  Wear slip-proof gloves when operating this tool.
•  Maintain a firm grip on the tool, using both hands 

at all times.

•  Do not lock the control lever in the power-ON 

position. Operator cannot stop tool when the 

control lever is locked.

Failure to observe these warnings could result in 

severe injury or death.

Vibration hazard:
Apply just enough pressure to do the work. Applying 

excess pressure to the breaker can cause operator 

discomfort or temporary numbness.
Failure to observe this precaution may result in 

injury.

•  Do not operate the breaker unless the bit is prop-

erly installed and placed against the work surface. 

Damage to the breaker can result.

•  Inspect the hydraulic hoses and couplings every 

operating day. Repair or replace if leakage, crack-

ing, wear or damage is evident. Damaged hoses 

or couplings can fail, resulting in injury or property 

damage.

•  Use this tool for manufacturer’s intended purpose 

only. Use other than that which is described in this 

manual can result in injury or property damage.

•  Make sure all bystanders are clear of the work 

area when handling, starting, and operating the 

tool. Nearby personnel can be injured by flying or 

falling debris or by flying parts in the event of a 

tool malfunction.

Hydraulic oil can cause skin irritation.
•  Handle the tool and hoses with care to prevent 

skin contact with hydraulic oil.

•  In case of accidental skin contact with hydraulic 

oil, wash the affected area immediately to remove 

the oil.

Failure to observe these precautions may result in 

injury.

Emergency stop procedure:
1.  Release the control lever.
2.  Shut off the hydraulic power source.

Procedure for connecting or disconnecting hydraulic 

hoses, fittings, or components:
1.  Move the flow lever on the hydraulic power 

source to the OFF position.

2.  Stop the hydraulic power source.
3.  Follow the sequence under “Hose Connections” 

to prevent pressure buildup. In case some 

pressure has built up, loosen hoses, fittings, or 

components slowly. 

Note:  Keep all decals clean and legible, and replace 

when necessary.

IMPORTANT SAFETY INFORMATION

Summary of Contents for HPB25

Page 1: ...raulic Paving Breaker 99944642 REV 9 2019 Greenlee Tools Inc 10 19 Read and understand all of the instructions and safety information in this manual before operating or servicing this tool Register this product at www greenlee com ...

Page 2: ...procedures for the following Greenlee tool HPB25 Paving Breaker Keep this manual available to all personnel Replacement manuals are available upon request at no charge at www greenlee com Other Publications Tool Owners Users SAE Standard J1273 Hose and Hose Assemblies Publication 99930323 All specifications are nominal and may change as design improvements occur Greenlee Tools Inc shall not be lia...

Page 3: ...stem is pressurized Depressurize the hydraulic system before servicing Oil under pressure easily punc tures skin causing serious injury gangrene or death If you are injured by escaping oil seek medical attention immediately Do not exceed the following hydraulic power source maximums Hydraulic flow 25 l min 7 gpm Pressure relief 207 bar 3000 psi Back pressure 13 8 bar 200 psi Failure to observe thi...

Page 4: ...gainst the work surface Damage to the breaker can result Inspect the hydraulic hoses and couplings every operating day Repair or replace if leakage crack ing wear or damage is evident Damaged hoses or couplings can fail resulting in injury or property damage Use this tool for manufacturer s intended purpose only Use other than that which is described in this manual can result in injury or property...

Page 5: ...enlee Tools Inc 4455 Boeing Dr Rockford IL 61109 2988 USA 815 397 7070 5 Identification 1 Handle 2 Control Lever 3 Accumulator 4 Pressure Port 5 Return Port 6 Valve Body 7 Cylinder 8 Front End 9 Latch 10 Side Handle 1 2 3 4 5 7 6 8 10 9 ...

Page 6: ...etting 207 bar 3000 psi Back Pressure maximum 13 8 bar 200 psi Maximum hydraulic fluid temperature must not exceed 60 C 140 F A sufficient oil cooling capacity is needed to limit the hydraulic fluid temperature Hydraulic flow must not exceed 25 l min 7 gpm Install a flow meter in the return line to measure the rate of hydraulic flow before using the tool Pressure relief valve setting must not exce...

Page 7: ...cting Hoses 1 Move the flow lever on the hydraulic power source to the OFF position 2 Stop the hydraulic power source 3 Connect the return hose to the return port on the hydraulic power source then to the return port on the tool 4 Connect the pressure hose to the pressure port on the tool then to the pressure port on the hydraulic power source Disconnecting Hoses 1 Move the flow lever on the hydra...

Page 8: ...e latch with a downward motion 3 Insert the accessory into the front head 4 Lock the latch with an upward motion 5 Connect the hydraulic hoses according to the instructions under Hose Connections Operation 1 Start the hydraulic power source Note Allow the hydraulic power source to run for a few minutes to warm the hydraulic fluid 2 Position the bit against the surface material to be broken ground ...

Page 9: ...ap the hose connection port of the charging valve Close the relief valve on the charging valve 4 Slowly turn the handle counterclockwise to open the accumulator valve until pressure is read on the pres sure gauge If the pressure gauge reads less than 32 kg cm2 455 psi then the pressure needs to be increased to 40 kg cm2 569 psi 5 If the pressure needs to be adjusted turn the handle clockwise to cl...

Page 10: ...r s instructions for removing air from the system Incorrect hydraulic fluid viscosity Use hydraulic fluid with the correct viscosity Tool feels hot Hydraulic fluid level low Check the fluid level Check for leaks Incorrect hydraulic fluid viscosity Use hydraulic fluid with the correct viscosity Hydraulic fluid dirty Refer to the power source owner s manual for procedure to replace hydraulic oil and...

Page 11: ...ing Dr Rockford IL 61109 2988 USA 815 397 7070 11 Illustration 53 48 55 50 47 52 49 51 53 54 54 10 14 32 56 8 15 3 28 23 22 40 34 46 12 46 13 11 9 5 1 16 24 30 26 7 25 29 33 46 2 35 18 39 6 37 36 20 19 4 38 42 44 57 27 21 45 46 17 64 63 60 59 65 66 61 63 62 58 ...

Page 12: ...socket 8x15 4 35 45975 50459759 Bolt hex socket 10x50 1 36 45976 50459767 Spring pin Ø16x50 1 37 45977 50459775 Spring pin Ø10x50 1 38 45978G 50459783 Spring pin Ø6x20 1 39 45979 50459791 Needle roller 1 40 52183 52049243 Hydraulic hose set 1 42 50017462 Decal identification 1 44 49009 50490095 Decal warning 1 46 45983 50459830 Taper plug hex socket PT1 8 10 47 45984 50459848 Handle grip 1 48 4598...

Reviews: