Sakai SW800 Series, Руководство по ремонту

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3-111
Inspection & Adjustment
2. Adjustment
If measured pressures do not fall within the
specified range, adjust as follows:
2-1. Main relief valve
1) If there is no signs of looseness in locknut
(5) of main relief valve (4), dismount,
disassemble and wash clean the main
relief valve.
Do not loosen locknut (5) to keep the
setting unchanged.
★
Renew parts with signs of damages.
• Tightening torque:
Item (4): 83 N ・ m (850 kgf ・ cm) {61 lbf ・ ft}
Item (5): 9.8 N ・ m (100 kgf ・ cm) {7.2 lbf ・ ft}
★ Carefully perform disassembly and
reassembly taking necessary means
to avoid ingress of foreign matter.
2) To adjust the setting, loosen locknut (5)
and rotate adjusting screw (6).
• Adjusting screw:
Clockwise turn increases pressure.
Counterclockwise turn decreases pres-
sure.
• Increase or decrease in pressure per 1/4
turns of adjust screw:
3.38 MPa (34.5 kgf/cm
2
) {490 psi}
3) Use the procedures in item 1-1 (Main relief
valve) for pressure measurement during
the setting adjustment.
4) When the adjustment is complete, tighten
the locknut and recheck the setting.
★
If the valve is beyond adjustment,
take necessary measures referring to
relevant instructions in the chapter,
TROUBLESHOOTING.
SW6503006
4
5
6