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E N G L I S H
10
MAINTENANCE (DIN EN 31051)
PAR
DESCRIPTION
10.3
REPAIRS
DANGER OF MATERIAL DAMAGE AND PERSONAL INJURIES!
The safety instructions in chapter “2 SAFETY” on page 7 must be followed.
TECNA offers you a comprehensive service offer for repairing the hydraulic breaker.
•
Only use the original spare parts of TECNA for repairing the hydraulic breaker.
SAFETY INSTRUCTIONS FOR REPAIRING
The hydraulic breaker may be dismantled for repairs only if it is described in this operating manual.
Defective parts may be replaced by new tested components having a structure and quality similar
to the original equipment.
•
Clean the external environment of fittings and devices before dismantling. Do not use cotton
waste for cleaning.
•
Close all the openings using protective caps.
DANGER
37
/44
REV
0.0
MAINTENANCE (DIN EN 31051)
10
10.3.5
NITROGEN CHARGING OF THE OIL NITROGEN ACCUMULATOR
GENERAL CONDITIONS
For the breaker to operate correctly, the oil nitrogen accumulator must be charged adequately.
The discharged condition of the accumulator is shown by strong vibrations of the hydraulic
breaker’s oil feed hose. It is recommended that you disassemble the accumulator every 1000
working hours (six months) and replace the rubber diaphragm even if it appears to be in a good
condition;
see section "10.2.4 MAINTENANCE AND INSPECTION PLAN" on page 35.
Once the accumulator is discharged, the polyurethane diaphragm must be replaced under normal
conditions, even if the condition appears to be satisfactory.
The oil nitrogen accumulator may be replaced by the dealer or an authorised service only.
OPERATING MANUAL
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H
ydraulic
breakers
T
series
