10.1 Faults – Causes
10.1 Faults – Causes – Elimination Faults Possible causes Elimination Comments Device has no or almost no pressure The pressure release valve is not closed Close pressure release valve (turn pressure release valve clockwise) Observe pressure gauge on the hand pump Oil level is too low (hydraulic) Refill oil to max. level Oil type see chapter 11 Leakage Check hoses and fittings as well as of the device Tighten screws. Exchange hoses if necessary Vacuum in hydraulic tank Remove the tank cap Vacuum is eliminated Tool can not be clamped Wrong starting position Put device in position "clamping" «IN» Pay attention to symbol on device Tool is not cleaned properly Unclamp tool again and clean it Pressure too low See fault "Device has no or almost no pressure" Damaged tool holder or collet Contact manufacturer Tool can not be unclamped Wrong starting position Pressure too low Damaged tool holder or collet Put device in position «OUT» See fault "Device has no or almost no pressure" Contact manufacturer Pay attention to symbol on device Clamping unit will not close Adaptor is not inserted properly Insert adaptor parallel into half shells Damages of guide ways may need to be repaired 11. Operating and Working Material (EU-Safety Data Sheet) Oil: Hydraulic oil HLP ISO VG 32 Safety sheet see chapter 20.7. 12. Maintenance and Service The indicated maintenance intervals refer to a single-shift operation. The maintenance intervals are shortened when the unit is used at higher levels, i.e. by multiple-shift operation. Additional influences such as dirty work surroundings have to be considered. 80 Operating manual PGC 2506
NOTE It is not mentioned in this section how to reassemble the unit after any kind of failure of fault. These repairs should only be done by specially instructed and trained personnel or by our sales service. 12.1 Maintenance Plan The indicated maintenance intervals refer to a single-shift operation. The maintenance intervals are shortened when the unit is used at higher levels, i.e. by multiple-shift operation. Additional influences such as dirty work surroundings have to be considered. WHEN WHAT HOW WHO Weekly Check hoses and fittings for leak visually Special instructed and trained personnel Monthly Oil tank (Hydraulic) Control of oil level, refill if necessary Yearly Change of oil Hydraulic Change hydraulic oil against filtered or new hydraulic oil Special instructed and trained personnel Special instructed and trained personnel Every 5 Years Hydraulic hoses and filter Change hoses and filter Maintenance specialist WARNING All work on the unit should be carried out when the unit is shut down. No pressure is allowed in the hydraulic unit, i.e. the pressure gauge must indicate 0 bar / 0 PSI. 12.2 Service Instruction for powRgrip ® Device and Pump WARNING Before doing any service work hydraulic pressure should be completely released of the unit. No pressure is allowed in the hydraulic unit, i.e. the pressure gauge must indicate 0 bar / 0 PSI. 12.3 General Maintenance may only be carried out by qualified technicians or appropriately trained persons (responsible maintenance mechanic). Pay attention to cleanness! Particles of dirt must not get into the tool or into the device. For mounting the seals do not use assembling tools with sharp edges. Original spare parts and the use of the original powRgrip ® APC clamping inserts must be used. Check the oil level! NOTE The minimum oil level must be at least to the middle of the oil tank. The oil should be directly at the lower edge of the thread when the pump is levelled and the cylinder is retracted. Operating manual PGC 2506 81
