Service manual

C apacity . . . 15.5 Qts
(14,7 L)
DISPLACEMENT CONTROL VALVE
Neutral . . . . 310-330 PSI
(2137-2275 kPa )
Stroked . . . . 3O0-320 PSI
(2069-2206 kPa)
CHARGE PUMP . . . . 11.0 GPM
225-290 PSI (1551-2000 kPa )
(41,6 L./M in .) at 2850 RPM
FLOW DIVIDER ADJUSTMENT VALVE
HYDRAULIC/HYDROSTATIC SCHEMATIC
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FLOW CONTROL
SPOOL
LEGEND
RESERVOIR:
DIFFERENTIAL PRESSURE SWITCH:
SPRING LOADED FILTER BYPASS
ONE WAY RESTRICTOR VALVE
Printed in U.S.A.
DRIVE MOTOR SHUTTLE VALVE
RE
LIEF/REPLENISHING VALVE - HIGH
RELIEF VALVE - MAIN:
2550-2600 PSI (17582-17927 kPa)
RELIEF VALVE - PORT:
CHECK VALVE - BUCKET POSITION
VALVE
3500 PSI (24132 kPa)
LOAD CHECK VALVE
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - UNLOADING
SPOOL
SHUTTLE RELIEF VALVE:
36-44 PSI (248-303 kPa)
1
at Front Quick Couplers
853
(S/N 508415216-17999)
2
4
3
5
11
VALVE: 45-55 PSI (311-379 kPa)
6
7
15
14
16
13
10
25
20
21
22
23
18
17
RELIEF VALVE - CHARGE:
38
31
35
(Printed June 1999)
PRESSURE:
(S/N 510126792 AND ABOVE)
(S/N 510250692 AND ABOVE)
34 FILTER - HYDROSTATIC (CANISTER)
8
9 RELIEF VALVE - PORT: (OPTIONAL)
3100 PSI (21371 kPa)
2500 PSI (17238 kPa)
12
RELIEF/ANTICAVITATION VALVE -
PORT (TILT BASE END):
TOW VALVE19
24
26 MUFFLER (If Equipped)
CHARGE PRESSURE SENSOR27
28 FLUID TEMPERATURE SENSOR
29
30
33
36 FILTER - HYDRAULIC (CANISTER)
37
FILTER
FILTER
(S/N 512811001-15999)
39
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY OPEN
("D2")
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY OPEN
("D1")
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY CLOSED
("P1" and "F1")
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FOR REAR
AUXILIARY - NORMALLY CLOSED
("P2" and "F2")
32
FILTER
853 BASE - N ormally Closed
853 PLUS - Normally Closed
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
(OPTIONAL)
18.0 GPM (68,1 L/min.)
HYDRAULIC PUMP
at 2750 RPM
140°F. (60°C.) Fluid at Full RPM
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - FRONT
AUXILIARY (OPTIONAL ON 853 BASE)
STANDARD . 4350 PSI (29990 kPa)
OPTIONAL . 5000 PSI (34475 kPa)
CHECK VALVE - FILTER
MC2397LU
FIXED CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC
MOTOR
ANTICAVITATION VALVE
NOTE: Unless otherwise specified,
springs have NO significant
pressure value.