Cat H70 Hydraulic Breaker
Brand Machinery Planet
H70 307D, 308D CR
Recommended carrier weight 5-8 Ton
Working weight 950 lbs
*Spade (parallel or transverse) Applications • Frozen or compact ground • Asphalt
*Moil Applications • Sedimentary and weak metamorphic rock into which tool penetrates • Concrete Select when: • Working in soft, nonabrasive rock • Needing greater protection against excessive retaining pin groove wear
*Chisel Applications • Sedimentary and weak metamorphic rock into which tool penetrates • Concrete Select when: • Working in nonabrasive but ductile rock • Needing medium penetration rate into rock
1 Low Pressure Accumulator – Assists in the power stroke of the piston.
2 Custom Sideplates – Designed for Caterpillar carrier geometry. Protects the powercell and front end.
3 High Pressure Accumulator – Dampens pressure peaks thus protecting the carrier hydraulic system (not shown).
4 Distributor – High oil volume for greater blow frequency.
5 Pressure Adjusting Valve (PAV) – Assures that all blows are delivered at a constant blow energy.
6 Piston – Long heavy piston delivers maximum impact energy and minimizes recoil forces to carrier.
7 Long Front End – Ensures proper piston tool alignment.
8 Slip Fit Thrust Ring – Dissipates harmful shock loads in abusive applications. 9 Slip Fit Upper Tool Bushing – Positive alignment for the tool.
10 Tool Retention Pin System – Allows quick and easy removal of tool.
11 Side Plate Fastener – Working forces carried through cap screws and front end.
12 Slip Fit Lower Tool Bushing (Field Replaceable) – Grease retention grooves for extended lubrication and wear indication.
13 Dust Seal – Dust Seal helps prevent foreign material from entering the housing. This reduces the wear on the power cell and other major components. 14 Tool – Heat treated for longer life. Ideally matched to piston for greater transfer of stress waves.