© 2020 Genesis Attachments, LLC
Genesis Rail Breaker GRB 30 45
TROUBLE-SHOOTING GUIDE
Symptom
Possible Causes/Solutions
Low power
Check operating pressures and back pressure at port blocks on attachment
Isolate attachment from excavator and check excavator pressures at boom tip
Possible cylinder or swivel bypass - contact the Genesis Service Department for procedures
to check for bypass
Slow jaw close
Check hydraulic flows from excavator
Jaw drifts closed or
can be pushed closed
Directional valve on excavator may be leaking
Possible cylinder or swivel bypass - contact the Genesis Service Department for procedures
to check for bypass
Jaw closes suddenly
and will not open
Ball valve may be closed on excavator
Excavator valve spool may be stuck
If attachment has quick-coupled hydraulics, they may be partially disconnected or damaged
Hydraulic system
overheating
Check hydraulic system oil level for low or overfull condition
Ensure clear path for hydraulic cooler-radiator and A/C condenser; clean coolers and radiator
with compressed air and then pressure wash
Check with excavator dealer on whether a hot weather package needs to be installed on the
excavator. Note oil temperatures coming out of the attachment can run as high as 230 to 240
degrees Fahrenheit.
Poor Cutting
Wear in main bearings is causing jaw deflection and inconsistent blade gaps
Pressures from excavator too low - check at attachment port blocks
Swivel or cylinder is bypassing - contact the Genesis Service Department for procedures to
check for bypass