773 Hydraulic Schematic v-0513legend-2

Posted in 773
HYDRAULIC/HYDROSTATIC SCHEMATIC
773 (S/N 517621199 AND ABOVE)
(S/N 518012552 AND ABOVE)
(S/N 518112469 AND ABOVE)
(S/N 519024162 AND ABOVE)
(S/N 519212517 AND ABOVE)
(PRINTED MARCH 2004)
V-0513legend
SPRING LOADED FILTER BY-PASS
VALVE: 45-55 PSI (3,1-3,8 Bar)
RESERVOIR:
Capacity . . . . . . . . . 24 Qts. (23 L)
1
2
19
PULL BUTTON ACTIVATED
DIRECTIONAL CONTROL VALVE - LIFT
ARM BY-PASS
14
LOAD CHECK VALVE
9
RELIEF VALVE - MAIN:
3300 PSI (228 Bar)
at Front Quick Couplers
11
ANTICAVITATION VALVE
12
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
10
RELIEF VALVE - PORT: . . . . . (Optional)
3500 PSI (241 Bar)
5
RELIEF/REPLENISHING VALVE - HIGH
PRESSURE: 5000 PSI (345 Bar)
6
RELIEF VALVE - CHARGE INLET:
185-195 PSI (12,7-13,5 Bar)
at 16.7 GPM (56. 8 L/min.)
at High Engine Idle
With 120 degrees F. (49 degrees C.) Fluid
24
LOAD SHUTTLE VALVE - BLEED OFF
25
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY CLOSED
("P2" and "F2")
26
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY OPEN
("D1" and "P1")
LEGEND
FLOW DIVIDER ADJUSTMENT VALVE
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - FLOW CONTROL
SPOOL
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - LIFT CONTROL
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - UNLOADING
SPOOL
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - TILT CONTROL
DIFFERENTIAL PRESSURE SWITCH:
36-44 PSI (2,5-3,0 Bar)
Normally Closed
3
22
21
20
17
18
Printed in U.S.A.
16
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BICS CONTROL
8
HYDRAULIC PUMP . . . . . . . Gear Type 16.7
GPM (63.2 L/min.) at High Engine Idle
23
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BLEED OFF REAR
AUXILIARY ("SV2")
4
DRIVE MOTOR SHUTTLE VALVE
7
FRONT AUXILIARY MANUAL
PRESSURE
BLEED-OFF VALVE
13
RELIEF VALVE - PORT: . . . . . (Optional)
3500 PSI (241 Bar)
15
LIFT CYLINDER SPOOL - MADE TO
RESTRICT FLOW DURING BOOM
DOWN BUT NOT DURING BOOM UP
1 of 2
Dealer Copy -- Not for Resale
FILTER - HYDRAULIC (CANISTER)
FILTER - CASE DRAIN (SINTERED
BRONZE)
32
31
33
FILTER - BICS CONTROL VALVE
(SCREEN)
44
RELIEF/ANTICAVITATION VALVE -
PORT (TILT BASE END)
3500 PSI (241 Bar)
39
ONE WAY RESTRICTOR VALVE
27
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY OPEN
("D2" and "P2")
28
FILTER - DIVERTER VALVE (SCREEN)
INTEGRATED IN SOLENOID
29
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - TO ACTIVATE
REAR AUXILIARY ("SV1")
30
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY CLOSED
("P1" and "F1")
42
PRESSURE COMPENSATED FLOW
CONTROL
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - HYDRAULIC
POWERED BOB-TACH
V-0513legend (3-1-04)
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
CHECK VALVE - BUCKET POSITION
VALVE
FIXED CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC
MOTOR
34
38
43
RELIEF VALVE - PORT:
3500 PSI (241 Bar)
40
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BUCKET POSITION
VALVE (ON/OFF)
41
CHECK VALVE - BICS CONTROL VALVE
35
RESTRICTION
36
VARIABLE CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC PUMP
49
RESTRICTION - 0.015 inch (0.381 mm)
47
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
48
RELIEF VALVE - 1200 PSI (82,8 Bar)
46
TWO-STAGE RELIEF
1000/2000 PSI (69/138 Bar)
37
SHUTTLE RELIEF VALVE
(Not Adjustable - Factory Set)
65 PSI (4,5 Bar)
45
HYDRAULIC/HYDROSTATIC SCHEMATIC
773 (S/N 517621199 AND ABOVE)
(S/N 518012552 AND ABOVE)
(S/N 518112469 AND ABOVE)
(S/N 519024162 AND ABOVE)
(S/N 519212517 AND ABOVE)
(PRINTED MARCH 2004)
V-0513legend
LEGEND
2 of 2
Dealer Copy -- Not for Resale