BR37 User Manual ◄ 13
TROUBLESHOOTING
PROBLEM CAUSE REMEDY
Tool does not run.
(7–9 gpm/26–34 lpm, 1500–2000 psi/
105–140 bar).
Couplers or hoses blocked. Remove restriction.
reversed at ports.
Be sure hoses are connected to their proper
ports.
Mechanical failure of piston or
automatic valve.
Disassemble breaker and inspect for
damaged parts.
Tool does not hit effectively.
(7–9 gpm/26–34 lpm, 1500–2000 psi/
105–140 bar).
Couplers or hoses blocked. Remove restriction.
Low accumulator charge
(pressure hose will pulse more
than normal).
Recharge accumulator. Replace diaphragm if
charge loss continues.
Fluid too hot (above
140 °F/60 °C).
temperature (140 °F/60 °C).
Tool operates slow. Low gpm supply from power
unit.
gpm/26–34 lpm).
High backpressure. Check hydraulic system for excessive
backpressure (over 200 psi/14 bar).
Couplers or hoses blocked. Remove restriction.
Remove restriction.
Fluid too hot (above
140 °F/60 °C) or too cold
(below 60 °F/16 °C).
cooler to maintain proper temperature.
Relief valve set too low. Adjust relief valve to 2100–2250 psi/145–-155
bar.
Tool gets hot.
Check the relief valve setting.
Fluid leakage on tool bit. Lower piston seal failure. Replace seal.
Fluid leakage around trigger. Valve spool seal failure. Replace seals.
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