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> Technical Data > Trouble Shooting Guide
TROUBLE CAUSE REMEDY
1. Breaker fails to hammer
  (1) Sufficient high pressure
      oil does not flow to
      breaker inlet.
  (2) Sufficient high pressure
      oil flows to breaker
      inlet.
(a) Defective hose or pipes
    . Clogged or damaged piping
(b) Defective control valve and   related parts
    . Missing or damaged tie Tool or
     control cable
(c) Insufficient hydraulic oil
(d) Internal breaker defects
    station.
(a) Check, clean and repair piping
     or replace with new ones.
(b) Check and repair Valve and its
     related parts or replace with
     new ones.
(c) Refill the oil tank.
(d) Consult with our service
     station.
2. Breaker hammers with
    hammering force reduced.
  (1) Sufficient high pressure
      oil does not flow to
      breaker inlet.
  (2) Sufficient high pressure
      oil flows to breaker
       inlet.
(a) Defective hose or pipes
    . Clogged or damaged piping
(b) Defective control valve and
     related parts
    . Deformed pedal
    . Deformed control valve
    . Stuck control valve
    . Insufficient control valve
     stroke due to loose screws
(c) Clogged filter in return line of
     base machine tank
(d) Insufficient hydraulic oil
(e) Contaminated or deteriorated
     hydraulic oil
(f) Defective pump
     machine service.
(g) Internal breaker defects
     . Entry of contaminated articles
(h) Decrease in N2-gas sealing
     pressure of Back-Head
(a) Check, clean and repair piping
      or replace with new ones.
(b) Check control Valve and
      related parts or replace with
     new ones.
(c) Clean or replace.
(d) refill.
(e) After flushing tank, change
      oil entirely
(f) Ask service station for base
      machine service.
(g) Consult with our service
     station.
(h) Adjust the gas pressure
     referring to Chpt. 9,10
3. Hammering force plummets
    suddenly and high pressure
    hose vibrates excessively
    during operation.
(a) Defective Back-Head
     . Gas leakage
(a) Ask our service station for
     repairs
4. Excessive oil leakage from
    front head or Tool.
(a) Worn cylinder seals (a) Ask our service station for
     repairs
5. Piston works but does not
    hammering.
(a) Stuck Tool (a) Remove front parts and pull
     out Tool and check it.