OPERATOR’S MANUAL
11
HYDRAULIC ACCUMULATORS
- pressure side (10 L)
type: elastic bladder in steel case
nitrogen pressure (5/6SL): 121/146 bar (1 755/2 118 psi)/20 °C
- return side (4 L)
type: elastic bladder in steel case
nitrogen pressure: 6 bar/20 °C
Pre-set pressure is stamped to accumulators.
• ELECTRICAL COMPONENTS
Electric pilot valve, inductive proximity sensor.24 VDC
• CUSHION
Ø 600 * 200 mm/Ø23.6*7.9 in, plastic
• REBOUND RING
Ø 878/690 * 100 mm/Ø34.6/27.2*3.9 in * 2, rubber
• HYDRAULIC OIL
Incorrect or dirty hydraulic oil can damage the hammer.
Minimum purity of grade of hydraulic oil: 20/18/15-ISO 4406 (c)
• WEIGHT (WORKING)
Ram block: 6 000 kg 13 228 lb
Frame: 1 600 kg 3 527 lb
Drive cap housing: 750 kg 1 653 lb
Drive cap: 1 000 kg 2 205 lb
Cylinder: 360 kg 794 lb
Guide claws: 170 kg 375 lb
Accumulators: 50 kg 110 lb
Frame extension: 360 kg 794 lb
Total weight (HHK 5SL): 9 300 kg 20 503 lb 10.3 Uston
Total weight (HHK 6SL): 10 600 kg 23 369 lb 11.7 Uston
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