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2-15
Adjustment of outer spring
Adjust it by loosening the hexagon nut
(630) and by tightening (or loosening)
the adjusting screw C (628).
Tightening the screw shifts the control
chart to the right and increases the
input horsepower as shown in the
figure. Since turning the adjusting
screw C (628) by N turns changes the
setting of the inner spring (626), return
the adjusting stem C (627) by N
佴
A
turns at first. (A=1.73)
Adjusting value
a.
侍
Delivery pressure, (P
1
+P
2
)
Deliv
er
y flo
w
, Q
625 626
630
628
627
802
2107A2MP07A
Speed
Adjustment of input horsepower
Tightening
amount of
adjusting
screw (C)
(628)
Compensa-
ting control
starting
pressure
change
amount
Input torque
change
amount
(min
-1
)
(Turn)
(kgf/cm
2
)
(kgf
余
m)
1900
+1/4
+19.2
+3.4
Low tilting angle (low flow) command preferential function
As mentioned above, flow control and horsepower control tilting angle commands are
transmitted to the feedback lever and spool via the large-hole sections (C & F) of levers 1 and 2.
However, since sections C and F have the pins (
凱
4) protruding from the large hole (
凱
8), only
the lever lessening the tilting angle contacts the pin (897) ; the hole (
凱
8) in the lever of a larger
tilting angle command is freed without contacting the pin (897). Such a mechanical selection
method permits preference of the lower tilting angle command of the flow control and horsepower
control.
Adjustment of input horsepower
Since the regulator is of total cumulative horsepower type, adjust the adjusting screws of both
the front and rear pumps, when changing the horsepower set values. The pressure change
values by adjustment are based on two pumps pressurized at the same time, and the values will
be doubled when only one pump is loaded.
到
刱
Summary of Contents for HX140L
Page 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 209: ...4 5 MEMORANDUM...
Page 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Page 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...