HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH SJC, 2 SPEED AND HIGH FLOW
OPTION
S175 (S/N A3L511001 – A3L519999)
(PRINTED FEBRUARY 2008)
V-1069legend
LEGEND
1 RESERVOIR: 17 PILOTED ACTIVATED DIRECTIONAL
Capacity . . . . . . . 19.2 qt. (18,2 L) CONTROL VALVE - TILT CONTROL
2 SPRING LOADED FILTER BY-PASS 18 PILOTED ACTIVATED DIRECTIONAL
VALVE: 45-55 PSI (3,1-3,8 bar) CONTROL VALVE - LIFT CONTROL
3 DIFFERENTIAL PRESSURE SWITCH: 19 PULL BUTTON ACTIVATED
36-44 PSI (2,5-3,0 bar) DIRECTIONAL CONTROL VALVE -
Normally Closed LIFT ARM BY-PASS
4 DRIVE MOTOR SHUTTLE VALVE 20 PILOTED ACTIVATED DIRECTIONAL
Dealer Copy -- Not for Resale
CONTROL VALVE - UNLOADING
5 RELIEF/REPLENISHING VALVE - HIGH SPOOL
PRESSURE: 5075 PSI (350 bar)
21 PILOTED ACTIVATED DIRECTIONAL
6 RELIEF VALVE - CHARGE INLET: CONTROL VALVE - FLOW CONTROL
360 PSI (24,8 bar) SPOOL
at High Engine Idle
22 FLOW DIVIDER ADJUSTMENT VALVE
With 140 degrees F. (60 degrees C.) Fluid
7 FRONT AUXILIARY MANUAL 23 SOLENOID ACTIVATED DIRECTIONAL
PRESSURE BLEED-OFF VALVE CONTROL VALVE - BASE
8 HYDRAULIC PUMP . . . . . . . Gear Type 24 SOLENOID ACTIVATED DIRECTIONAL
16.9 GPM (64 L/min.) at High Engine Idle CONTROL VALVE - ROD
25 LOAD SHUTTLE VALVE - BLEED OFF
9 RELIEF VALVE - MAIN:
3250-3350 PSI (224-231 bar) 26 SOLENOID ACTIVATED DIRECTIONAL
at Front Quick Couplers CONTROL VALVE - TWO COIL
10 PORT RELIEF/ANTICAVITATION VALVE 27 PILOT ACTIVATED DIRECTIONAL
3500 PSI (241,3 bar) CONTROL VALVE - REAR AUXILIARY
11 ANTICAVITATION VALVE 28 RESTRICTOR - 0.140 inch (3,6 mm)
12 SOLENOID ACTIVATED DIRECTIONAL 29 RESTRICTOR - 0.031 inch (0,8 mm)
CONTROL VALVE - AUXILIARY
13 PORT RELIEF/ANTICAVITATION VALVE: 30 RELIEF VALVE: 3300 PSI (228 bar)
. . . . . (Optional)
3500 PSI (241,3 bar) 31 FILTER - HYDRAULIC (CANISTER)
14 LOAD CHECK VALVE
32 FILTER - CASE DRAIN (SINTERED
15 LIFT CYLINDER SPOOL - MADE TO BRONZE)
RESTRICT FLOW DURING BOOM 33 FILTER - BICS CONTROL VALVE
DOWN BUT NOT DURING BOOM UP (SCREEN)
16 SOLENOID ACTIVATED DIRECTIONAL 34 CHECK VALVE - BUCKET POSITION
CONTROL VALVE - BICS CONTROL VALVE
Printed in U.S.A.
1 of 2
HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH SJC, 2 SPEED AND HIGH FLOW
OPTION
S175 (S/N A3L511001 – A3L519999)
(PRINTED FEBRUARY 2008)
V-1069legend
LEGEND
35 RESTRICTION 56 SERVO PISTON -Swash Plate
36 VARIABLE CAPACITY DISPLACEMENT 57 POSITION SENSOR -Swash Plate
BI-DIRECTIONAL HYDROSTATIC PUMP
58 CHARGE PRESSURE SENSOR
37 CHECK VALVE - With 5 PSI (0,34 Bar) Spring
59 CHARGE PUMP -
38 BI-DIRECTIONAL HYDROSTATIC
MOTOR – 2 Speed 12.8 GPM (48,5 L/min) at High Engine Idle
39 CHECK VALVE - With 80 PSI (5,5 bar) Spring 60 FIXED CAPACITY DISPLACEMENT
Dealer Copy -- Not for Resale
HYDRAULIC MOTOR
40 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BUCKET POSITION 61 ANTICAVITATION VALVE
VALVE (ON/OFF)
41 CHECK VALVE - BICS CONTROL VALVE 62 PROPORTIONAL RELIEF VALVE –
(Fan Speed Regulator):
42 RESTRICTION - 0.343 inch (8,7 mm) 1566 - 1784 PSI (108 - 123 bar)
43 FILTER - Bob-Tach Valve 63 SENSOR – CHARGE PRESSURE – Fan
Filter
44 PILOT ACTIVATED DIRECTIONAL
64 SENSOR – HYD. TEMP. – Hyd. Filter
CONTROL VALVE - HYDRAULIC
POWERED BOB-TACH
45 RESTRICTION - 0.089 inch (2,26 mm) 65 HIGH PRESSURE SHUTTLE
46 RESTRICTION - 0.025 inch (0,6 mm) 66 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE – WARM UP
47 RELIEF VALVE - 2000 PSI (137 bar) 67 SOLENOID ACTIVATED DIRECTIONAL
48 RELIEF VALVE - 1200 PSI (83 bar) CONTROL VALVE – 2 SPEED
68 PILOT ACTIVATED DIRECTIONAL
49 SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL) CONTROL VALVE – HIGH / LO SPEED
69 RELIEF VALVE – With 125 PSI (8,6 bar) Spring
50 RELIEF VALVE - 3300 PSI (228 bar)
51 DUMP VALVE - (ON/OFF)
52 CHECK VALVE
53 AUXILIARY HYDRAULIC PUMP -
9.5 GPM (36 L/min) at High Engine Idle
54 CHECK VALVE - With 300 PSI (20,7 bar) Spring NOTE: Unless otherwise specified, springs have
with 0.016 inch (0,40 mm) orifice NO significant pressure value.
55 SOLENOID ACTIVATED CONTROL
VALVE - FORWARD/REVERSE V-1069legend (2-7-08)
2 of 2
