HYDRAULIC/HYDROSTATIC SCHEMATIC

453 (S/N 515013713 AND ABOVE)

(S/N 515113620 AND ABOVE)
(PRINTED JANUARY 2001)
V-0058legend

LEGEND
1 RESERVOIR: 17 ANTICAVITATION VALVE
Capacity . . . . . . . . . 5.3 Qts. (5,0 L)
18 FILTER - BICS CONTROL VALVE
2 FILTER - HYDRAULIC/HYDROSTATIC
(CANISTER)
19 CHECK VALVE - BICS CONTROL VALVE
3 CHARGE PRESSURE SWITCH:
17-21 PSI (118-144 kPa) 20 SOLENOID ACTIVATED DIRECTIONAL
4 TEMPERATURE SWITCH CONTROL VALVE - BICS CONTROL
225-232 degrees F. 21 PULL BUTTON ACTIVATED
(108-111 degrees C.) DIRECTIONAL CONTROL VALVE - LIFT
5 RELIEF VALVE - CHARGE: ARM BY PASS
85 PSI (586 kPa)
22 CHECK VALVE - BICS CONTROL VALVE
6 BY PASS VALVE - COOLER:
275 PSI (1896 kPa) 23 PILOTED ACTIVATED DIRECTIONAL
7 FIXED CAPACITY DISPLACEMENT CONTROL VALVE - LIFT CONTROL
BIDIRECTIONAL HYDRAULIC/
HYDROSTATIC MOTOR 24 PILOTED ACTIVATED DIRECTIONAL
8 CONTROL VALVE - TILT CONTROL
VARIABLE CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDRAULIC/
HYDROSTATIC PUMP 25 CHECK VALVE - BUCKET POSITION
VALVE
9 HYDRAULIC PUMP:
Gear Type . . . 6.8 GPM (25,7 L/min.) 26 FLOW DIVIDER ADJUSTMENT VALVE
at 3000 RPM
10 RELIEF/REPLENISHING VALVE - HIGH 27 RESTRICTION - HYDRAULIC FILTER
PRESSURE: 3400 PSI (23440 kPa)
11 REPLENISHING VALVE

12 RELIEF VALVE - MAIN:

1400-1450 PSI (9652-9996 kPa)
at Front Quick Couplers
13 LOAD CHECK VALVE

14 PILOTED ACTIVATED DIRECTIONAL

CONTROL VALVE - FLOW CONTROL
SPOOL

15 CHECK VALVE - BUCKET POSITION

VALVE NOTE: Unless otherwise specified
springs have NO significant
16 PILOTED ACTIVATED DIRECTIONAL
pressure value.
CONTROL VALVE - UNLOADING
SPOOL

Printed in U.S.A. V-0058legend (1-10-01)

HYDRAULIC/HYDROSTATIC SCHEMATIC
453 (S/N 515013713 AND ABOVE) BUCKET POSITION VALVE (OPTIONAL)
(S/N 515113620 AND ABOVE)
(PRINTED JANUARY 2001) D
V-0058
15
DRIVE MOTOR
2 MALE
HYDRAULIC
FILTER
(FRONT AUXILIARY
QUICK COUPLERS)
26
7
3
FEMALE
27

A
4
OIL COOLER
C
5
14

25
HYDROSTATIC PUMPS 6 16

8 B

HYDRAULIC CONTROL VAVLE

11
10 TILT CYLINDER

AUXILIARY
SPOOL

INLET 13

11

10
BICS CONTROL VALVE

8
17
P2 B1

24
9 TILT
INLET OUTLET CYLINDER
SPOOL

13

23 LIFT CYLINDERS

P1 L1
DRIVE MOTOR

7
22
LIFT
CYLINDER
SPOOL

13

21

12

PP

20

18 19
PT

WORKING CIRCUITS
PILOT CIRCUITS
DRAIN CIRCUITS
COMPONENTS

1 V-0058 (1-10-01)