Sakai SW800 Series, Shop Manual

Page: 76 / 159

3-104
Inspection & Adjustment
3 ) For the pressure measurement during the
adjustment, use procedures as stated in
step 1-1.
4
)
When the adjustment is complete, tighten
locknut (4) and recheck to see if correctly
adjusted.
5) If the valve is beyond adjustment, take
necessary measures referring to relevant
items in “TROUBLE-SHOOTING”.
2-2. High pressure relief valve
1) Screw in adjust screw (4) of cut off valve
(3) one full turn and block the cut off valve.
2) If locknut (11) of high pressure relief valve
(7) (for forward travel) or of high pressure
relief valve (8) (for reverse travel) has no
signs of looseness, dismount and disas-
semble the high pressure relief valve. Do
not loosen locknut (4) to keep the setting
unchanged.
★
Renew parts having signs of damage.
• Tightening torque:
Items (7),(8)
150 N ・ m (1,530 kgf ・ cm) {110 lbf ・ ft}
Item (9)
100 N ・ m (1,020 kgf ・ cm) {73.8 lbf ・ ft}
Item (10)
50 N ・ m (510 kgf ・ cm) {36.9 lbf ・ ft}
Item (11)
20 N ・ m (204 kgf ・ cm) {14.8 lbf ・ ft}
★
Carefully perform disassembly and
reassembly taking necessary mea-
sures to prevent ingress of foreign
matter.
3) To adjust the setting, loosen locknut (11)
and rotate adjust screw (12).
• Adjust screw rotation:
Clockwise
➡
Pressure increases
Counterclockwise
➡
Pressure decreases
• Pressure increase or decrease per 1/4
turns of adjust screw:
4.9 MPa (50 kgf/cm 2 ) {711 psi}
12 11 10
9
7,8
SW8003015