39
FAULT
CAUSE
ACTION
Unusual vibration of
cutting heads.
Loud gear noise.
Hydraulic motor
overpressure cover
deformed, oil leak at
seal, pressure
limiting valve leak.
Bits do not rotate.
Loud hydraulic
motor noise.
Bits worn, damaged, or un-
even lengths.
Damage to internal parts.
Case drain pressure too high.
Case drain improperly
installed.
Case drain filter needs
servicing.
Case drain shutoff valve
closed.
Coupling not properly
seated.
Corrosion or debris between
bit shaft and block.
Air in hydraulic circuit or
motor.
Low return line pressure.
Internal parts worn from
foreign material.
Loose bolts on connection
bracket, quick coupler.
Replace bits.
Contact
Blue Diamond
.
Replace Gears.
Check hydraulic installation.
Disassemble bits.
Clean bit shafts after opera-
tion and treat with corrosion
inhibitor.
Bleed system.
Check hydraulic installation.
Flush return line.
Replace return line
filter.
Check bushings and bolts for
play. Replace if needed.
Blue Diamond Attachments®
39
Summary of Contents for 159010
Page 16: ...16 3 7 OVERVIEW 4 INSTALLATION AND STARTUP Grinder Main Components Blue Diamond Attachments 16...
Page 45: ...45 Torque Table 1 of 2 Blue Diamond Attachments 45...
Page 46: ...Torque Table 2 of 2 Blue Diamond Attachments 46...
Page 47: ...ROCK GRINDER FULL ASSEMBLY...
Page 51: ...ROCK GRINDER BASE PLATE...
Page 52: ...ROCK GRINDER...
Page 53: ...ROCK GRINDER MOTOR ASSEMBLY...
