Baileigh SH-70250-HD, Operator'S Manual

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Hydraulic Pressure Filling the Accumulator
Note: This operation requires two people to be able to reach switches and valve at
the same time.
1. Open the shutoff needle valve #8 to allow
pressure to the pressure gauge.
2. IF THE SHEARING RAM IS NOT ALL THE
WAY AT THE BOTTOM OF ITS TRAVEL,
OPENING THE BALL VAVLE #7 WILL
CAUSE THE RAM TO FALL. Open the
shutoff ball valve #7 slowly allowing the ram
to lower to the bottom position.
3. Start the pump and place the stroke key
switch in the left jog stroke position.
4. Place the accumulator switch in t
he right “1”
position. This will energize the YA1 and YA2
valve.
5. Adjust the relief valve #16, until the oil pressure of accumulator is at 11MPa, this is the P2
value as shown on the hydraulic diagram.
6. Close the shutoff ball valve #7. Then turn the
accumulator switch to the “0” position. The
cutting beam will raise by the pressurized oil from the accumulator.
7. Close the shutoff needle valve #8. This will prevent the pressure gauge from feeling any
pressure spikes during normal operation.
NOTICE: This is not a common function. The accumulator has been charged from the
factory and will not require charging unless someone has tempered with or inadvertently
actuated the accumulator hydraulic circuit ball valve. The accumulator will only require
hydraulic pressure filling if the hydraulic pressure gauge is below 8MPa AND the shearing
ram will not lift and hold at the full up position.
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