17
Troubleshooting Guide
GB
Warranty
GB
Your new Belle Group BHB Hydraulic Breaker is warranted to the original purchaser for a period of one-year (12 months) from the
original date of purchase. The Belle Group warranty is against defects in design, materials and workmanship.
The following are not covered under the Belle Group warranty:
1. Damage caused by abuse, misuse, dropping or other similar damage caused by or as a result of failure to follow assembly,
operation or user maintenance instructions.
2. Alterations, additions or repairs carried out by persons other than Belle Group or their recognised agents.
3. Transportation or shipment costs to and from Belle Group or their recognised agents, for repair or assessment against a warranty
claim, on any machine.
4. Materials and/or labour costs to renew, repair or replace components due to fair wear and tear.
Belle Group and/or their recognised agents, directors, employees or insurers will not be held liable for consequential or other damages,
losses or expenses in connection with or by reason of or the inability to use the machine for any purpose.
Warranty Claims
All warranty claims should fi rstly be directed to Belle Group, either by telephone, by Fax, by Email, or in writing.
For warranty claims:
Belle Group Warranty Department,
Unit 5, Bode Business Park,
Ball Haye Green,
Leek,
Staffordshire,
ST13 6BW
England.
Tel : +44 (0)1538 380000,
Fax : +44 (0)1538 380038
Email : [email protected]
Problem
Cause
Remedy
Breaker does not work.
No or incorrect fl ow/pressure.
Check fl ow/pressure by means of test equipment.
Pressure is not built
P and T hoses interchanged.
Check connection. Standard connection has oil fl owing from
up when trigger is
male quick-release coupling (i.e. the tail-hose of the breaker P
activated.
connection is fi tted with female coupling).
Insuffi cient activation of trigger valve.
Adjust trigger lever (if adjustable) or replace defective parts.
Seals defect in spool channel of
Dismount, check and replace seals.
valve housing.
Breaker does not
Back pressure too high.
Make direct tank connection. Max. back pressure 10-15 bar
work. Pressure is built
(150-200 psi) measured at breaker.
up when trigger is
Quick-release coupling in return line
Locate and replace defective coupling.
activated
defective.
Striking piston sticks, possibly due to
Push the breaker hard against the Breaker ‘Steel’.
thickening of cylinder.
Chamfer/polish the edge slightly at the cylinder dashpot (where
the cylinder bore changes size).
Check oil viscosity. Thin oil increases the risk of thickening.
Spool / reversing spool or auxiliary
Dismount and check that all parts move. Polish slightly if
spool sticking easily.
necessary.
Seals defective.
Dismount, check and replace.
Breaker runs weakly or
Insuffi cient fl ow.
Check fl ow/pressure.
irregularly
Seals defective.
Replace seals.
Wear, internal leakage.
Dismantle, check and replace defective or worn parts.
Check impurity of oil and oil viscosity at working temperature.
Thin oil = increased internal leakage.
Insuffi cient accumulator charge.
Recharge accumulator.
Diaphragm defective.
Replace diaphragm.
Hoses pulsate
Accumulator defective.
Replace accumulator diaphragm and charge with nitrogen.
Oil leaking from breaker.
Seals defective.
Replace seals.
‘Steel’ falls out.
Worn latch.
Replace latch and roll pins.
Worn chisel bushing or ‘Steel’.
Replace bushing or ‘Steel’.
