s175 Hydraulic Schematic v-1069legend-2

HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH SJC, 2 SPEED AND HIGH FLOW
OPTION
S175 (S/N A3L511001 – A3L519999)
SPRING LOADED FILTER BY-PASS
VALVE: 45-55 PSI (3,1-3,8 bar)
RESERVOIR:
Capacity . . . . . . . 19.2 qt. (18,2 L)
1
2
19
PULL BUTTON ACTIVATED
DIRECTIONAL CONTROL VALVE -
LIFT ARM BY-PASS
9
RELIEF VALVE - MAIN:
3250-3350 PSI (224-231 bar)
at Front Quick Couplers
11
ANTICAVITATION VALVE
12
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
10
5
RELIEF/REPLENISHING VALVE - HIGH
PRESSURE: 5075 PSI (350 bar)
6
RELIEF VALVE - CHARGE INLET:
360 PSI (24,8 bar)
at High Engine Idle
With 140 degrees F. (60 degrees C.) Fluid
24
25
LOAD SHUTTLE VALVE - BLEED OFF
26
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - TWO COIL
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
16.9 GPM (64 L/min.) at High Engine Idle
23
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BASE
4
DRIVE MOTOR SHUTTLE VALVE
7
FRONT AUXILIARY MANUAL
PRESSURE BLEED-OFF VALVE
13
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - ROD
14
LOAD CHECK VALVE
27
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - REAR AUXILIARY
28
RESTRICTOR - 0.140 inch (3,6 mm)
(PRINTED FEBRUARY 2008)
V-1069legend
15
LIFT CYLINDER SPOOL - MADE TO
RESTRICT FLOW DURING BOOM
DOWN BUT NOT DURING BOOM UP
29
RESTRICTOR - 0.031 inch (0,8 mm)
RELIEF VALVE: 3300 PSI (228 bar)
30
FILTER - HYDRAULIC (CANISTER)
31
PORT RELIEF/ANTICAVITATION VALVE
3500 PSI (241,3 bar)
PORT RELIEF/ANTICAVITATION VALVE:
. . . . . (Optional)
3500 PSI (241,3 bar)
FILTER - CASE DRAIN (SINTERED
BRONZE)
32
33
FILTER - BICS CONTROL VALVE
(SCREEN)
CHECK VALVE - BUCKET POSITION
VALVE
34
1 of 2
Dealer Copy -- Not for Resale
39
CHECK VALVE - With 80 PSI (5,5 bar) Spring
BI-DIRECTIONAL HYDROSTATIC
MOTOR – 2 Speed
38
35
RESTRICTION
36
VARIABLE CAPACITY DISPLACEMENT
BI-DIRECTIONAL HYDROSTATIC PUMP
47
48
RELIEF VALVE - 2000 PSI (137 bar)
37
RELIEF VALVE - 1200 PSI (83 bar)
42
40
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BUCKET POSITION
VALVE (ON/OFF)
41
CHECK VALVE - BICS CONTROL VALVE
56
57
V-1069legend (2-7-08)
NOTE: Unless otherwise specified, springs have
NO significant pressure value.
58
FILTER - Bob-Tach Valve
44
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - HYDRAULIC
POWERED BOB-TACH
43
45
RESTRICTION - 0.089 inch (2,26 mm)
46
RESTRICTION - 0.025 inch (0,6 mm)
59
CHARGE PUMP -
12.8 GPM (48,5 L/min) at High Engine Idle
SERVO PISTON -Swash Plate
POSITION SENSOR -Swash Plate
CHARGE PRESSURE SENSOR
RESTRICTION - 0.343 inch (8,7 mm)
FIXED CAPACITY DISPLACEMENT
HYDRAULIC MOTOR
60
ANTICAVITATION VALVE
61
62
PROPORTIONAL RELIEF VALVE –
(Fan Speed Regulator):
1566 - 1784 PSI (108 - 123 bar)
CHECK VALVE - With 5 PSI (0,34 Bar) Spring
49
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
50
DUMP VALVE - (ON/OFF)
RELIEF VALVE - 3300 PSI (228 bar)
51
52
CHECK VALVE
SENSOR – HYD. TEMP. – Hyd. Filter
63
SENSOR – CHARGE PRESSURE – Fan
Filter
64
65
66
67
HIGH PRESSURE SHUTTLE
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE – 2 SPEED
68
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – HIGH / LO SPEED
69
RELIEF VALVE – With 125 PSI (8,6 bar) Spring
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE – WARM UP
53
AUXILIARY HYDRAULIC PUMP -
9.5 GPM (36 L/min) at High Engine Idle
54
CHECK VALVE - With 300 PSI (20,7 bar) Spring
with 0.016 inch (0,40 mm) orifice
55
SOLENOID ACTIVATED CONTROL
VALVE - FORWARD/REVERSE
HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH SJC, 2 SPEED AND HIGH FLOW
OPTION
S175 (S/N A3L511001 – A3L519999)
LEGEND
(PRINTED FEBRUARY 2008)
V-1069legend
2 of 2
Dealer Copy -- Not for Resale