V. Servicing
2. Breaker Symptom
Cause
Remedy
Seizure of breaker (piston or valve) Breaker does not work
Repair or replace worn parts
Oil entering into back head gas chamber
Stop breaking or erratic striking after 30 to 90 minutes of operation
Oil entering into back head gas chamber
Remove oil. Check/replace gas seal and step seals. Ensure that you check if piston or cylinder has got any scratch. Remove oil. Check/replace gas seal and step seal. Also ensure that you check if piston or cylinder has got any scratch.
Tool crack Tool point melting
See section Breaker Tool Failure.
Tool tip edge crack Replace diaphragm. Check if the breaker has made frequent blank fires. Inspect cylinder, piston seal condition. Check if contaminated or not. Remove seizing marks. Replace cylinder and piston if necessary.
Pulsation of pressure line hose
Diaphragm crack
Irregular blows at the beginning of breaker operation
Seizure of piston and cylinder
Low blow speed
Insufficient power (P x Q)
Check power (P x Q)
Weak striking force
Insufficient power (P x Q)
Check power (P x Q)
B) Oil leakage Oil leakage do not always require any part replacing. Check below before calling the breaker supplier. Symptom Leakage between tool and lower bush
Light oil leakage
Leave it as it is. Keep using breaker as it helps lubrication.
Heavy oil leakage
Seals at the cylinder bottom might have been damaged. Inspect/replace the complete seal set.
Leakage from control valve or Ro-plug Leakage between cylinder & back head
Cause & Remedy
Oil entering into back head gas chamber Oil leakage
Damaged or missing O-ring during breaker overhauling. Check/replace O-ring. Remove oil. Check/replace gas seal and step seal. Also ensure that you check if piston or cylinder has got any scratch. Loosed through bolts & nuts : Retighten
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