Rig Mounted Breaker BH801 Maruzenkogyo Item No. MAR-017E
Most powerful in this class!
･Most powerful in this class!
Max allowable intake pressure：27.5MPa
B.P.M.：500～950
･Suitable for a variety of work.
1．For breaking concrete and rock
2．For driving in anchor and pile
3．For digging out hard ground
4．For tamping soil and sand
5．For cutting and breaking asphalt
･Easy to attach with various excavator.
2 pcs of PIN, 4 pcs of BUSH,
and hoses are required to attach with an excavator.
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| MODEL | BH801 |
| dimensions(mm) | 778×476×218 |
| weight(kg) | 95 |
| working pressure(MPa) | 9.8～14.7 |
| allowable pressure(ℓ/min) | 27.5 |
| required oil flow / b.p.m | 20～25ℓ/min → 500～600bpm 25～30ℓ/min → 600～800bpm 30～35ℓ/min → 800～950bpm |
| moil point | length 550mm, dia 50mm, weight 7.2kg |
| connection | 3/8inch couplers (hose connection 1/2") |
| suitable machine (bucket capacity) (m3） | 0.04～0.08 |
| suitable machine (weight) (t) | 1.5～2.5 |
［STRUCTURE］
1. An accumulator is equipped on the top to get breaker hit stable.
2. Control Valve inside Valve Body switches flow of oil according to the movement position of piston and controls striking part.
3. Piston goes up and down in cylinder and strikes a moil point.
4. Valve Body trough Front End are tighten by 4 pcs of bolts.
5. Oil flow in from upper high pressure side, and come out from lower low pressure side.
6. Moil point can be attached on and off easily by only one retainer pin.
［HYDRAULIC PIPING］
1. Piping is different according to the models and types of excavator.
Refer the following basic piping for your attachment of machine and piping.
2. Keep the relief-set pressure in the range of 14.7~27.5MPa.
HOW TO USE
1. Prepare 4 pcs of bush and 2 pcs of pin to attach the breaker to excavator.
Grease in and outside of bush when attaching it to the bracket.
Keep the breaker horizontal and attach arm of excavator and bucket link together with 2 pcs of pin.
Insert 2 pcs of pin and fix the bracket with M10x20 hex bolts and spring washers.
Connect hydraulic hoses to the PTO port on excavator.
Be sure to turn off engine this time.
Connect the hoses correctly.
Upper side hose of the breaker is IN, and lower side hose is OUT.
2. Grease moil point and insert to the breaker.
3. After operation, turn off the engine when you take out moil point.
Be sure to wear glove since moil point would get very hot after operation.
4. To remove the breaker, place the breaker horizontally on the ground,
depressurize the breaker circuit, and then stop the engine.
While the breaker is being used, temperature of each section rises as oil temperature rises.
Use gloves to avoid unnecessary damage due to high temperature.
MAINTENANCE
1. DAILY INSPECTIONS
Before operation, always check the followings and be sure there are no damages or troubles.
Please make sure to stop the engine before checking.
