t250 Hydraulic Schematic v-0419legend-2

HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH HIGH FLOW OPTION
T250 (S/N 525611001 - 525612999)
(S/N 525711001 - 525711999)
(PRINTED FEBRUARY 2005)
V-0419legend
FILTER - HYDRAULIC (CANISTER)
SPRING LOADED FILTER BYPASS
VALVE: 45-55 PSI (3,1-3,8 bar)
RESERVOIR:
Capacity . . . . . . . . 21 qt. (19.9 L)
1
FILTER - CASE DRAIN (90 Micron)
2
3
4
19
RELIEF VALVE - MAIN:
at Front Quick Couplers
5
20
RELIEF VALVE - PORT:
4000 PSI (275 bar)
21
ANTICAVITATION VALVE
22
RELIEF/ANTICAVITATION VALVE -
PORT (TILT BASE END)
3500 PSI (241 bar)
23
24
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
25
RELIEF VALVE - PORT: . . . . . (Optional)
3500 PSI (241 bar)
26
RELIEF/REPLENISHING VALVE - HIGH
PRESSURE: 5000 PSI (345 bar)
27
PRESSURE SWITCH
28
RELIEF VALVE - CHARGE:
140 degrees F. (60 degrees C.)Fluid
at High Engine Idle
410 - 470 PSI (28,3 - 32,4 bar)
LEGEND
FLOW DIVIDER ADJUSTMENT VALVE
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - FLOW CONTROL
SPOOL
PILOTED ACTIVATED DIRECTIONAL
CONTROL VALVE - LIFT CONTROL
CHECK VALVE - BUCKET POSITION
VALVE
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)
FIXED CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC
MOTOR
6
7
8
9
10
11
12
13
Printed in U.S.A.
3250-3350 PSI (224-231 bar)
14
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BICS CONTROL
15
PULL BUTTON ACTIVATED
DIRECTIONAL CONTROL VALVE - LIFT
ARM BY PASS
29
CHARGE PUMP:
14.2 GPM (53,7 L/min) at
High Engine Idle
16
FILTER - BICS CONTROL VALVE
(SCREEN)
17
ONE WAY RESTRICTOR (ACS Valve Only)
18
LOAD CHECK VALVE
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BUCKET POSITION
VALVE (ON/OFF)
RELIEF VALVE - PORT:
4000 PSI (275 bar)
1 of 2
Dealer Copy -- Not for Resale
30
31
DRIVE MOTOR SHUTTLE VALVE
32
SHUTTLE RELIEF VALVE:
200 PSI (13,8 bar)
33
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - Base
34
LOAD SHUTTLE VALVE - BLEED OFF
35
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - (Two Coil)
36
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - REAR AUXILIARY
37
ORIFICE - With 0.140 inch (3,6 mm)
38
39
40
46
RELIEF VALVE - 2000 PSI (138 bar)
47
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
48
RELIEF VALVE - 1200 PSI (83 bar)
49
50
CHECK VALVE - With 300 PSI (20,7 bar)
Spring and 0.016 inch (0,40 mm) orifice
V-0419legend (2-9-05)
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
51
52
53
FILTER - CASE DRAIN (ATTACHMENT)
HYDRAULIC PUMP . . . . . . . . . Gear Type
21.2 GPM (80,2 L/min) at
High Engine Idle
54
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - BRAKE
55
HYDRAULIC BRAKE - SPRING APPLIED -
PRESSURE RELEASE
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - Rod
RELIEF VALVE:
3000 PSI (207 bar)
ORIFICE - With 0.031 inch (0,79 mm)
41
CHECK VALVE - BICS CONTROL VALVE
42
RESTRICTION
43
CHECK VALVE
44
FRONT AUXILIARY MANUAL
PRESSURE BLEED-OFF VALVE
45
VARIABLE CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC PUMP
CHECK VALVE - With 80 PSI (5,5 bar) Spring
56
ORIFICE - With 0.089 inch (2,26 mm)
57
ORIFICE - With 0.025 inch (0,64 mm)
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - HYDRAULIC
POWERED BOB-TACH
58
AUXILIARY HYDRAULIC PUMP
10.5 GPM (39,7 L/min) at
High Engine Idle
59
RELIEF VALVE - PORT:
3300 PSI (228 bar)
60
DUMP VALVE - ON/OFF
CHECK VALVE
61
LIFT BASE ORIFICE (Manual Valve Only)
HYDRAULIC/HYDROSTATIC SCHEMATIC
WITH HIGH FLOW OPTION
T250 (S/N 525611001 - 525612999)
(S/N 525711001 - 525711999)
(PRINTED FEBRUARY 2005)
V-0419legend
LEGEND
2 of 2
Dealer Copy -- Not for Resale