Service manual

2750 RPM at
C apacity . . . 15.5 Q ts (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
HYDRAULIC PUMP
225-290 PSI (1551-2000 kPa)
(41,6 L./M in.) at 2850 RPM
FLOW DIVIDER ADJUSTMENT VALVE
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - FLOW CONTROL
SPOOL
FIXED CAPACITY DISPLACEMENT
BIDIRECTIONAL HYDROSTATIC
MOTOR
LEGEND
RESERVOIR:
DIFFERENTIAL PRESSURE SWITCH:
SPRING LOADED FILTER BYPASS
ONE WAY RESTRICTOR VALVE
Printed in U.S.A.
DRIVE MOTOR SHUTTLE VALVE
R
ELIEF/REPLENISHING VALVE - HIGH
RELIEF VALVE - MAIN:
3300 PSI (22750 kPa )
RELIEF VALVE - PORT:
CHECK VALVE - BUCKET POSITION
VALVE
3500 PSI (24132 kPa)
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - REAR
AUXILIARY (OPTIONAL)
LOAD CHECK VALVE
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE - UNLOADING
SPOOL
SHUTTLE RELIEF VALVE:
36-44 PSI (248-303 kPa)
1
at 18 GPM (68,1 L/ min.)
MC2398LU (5-19-99)
2
4
3
5
1
1
VALVE: 45-55 PSI (311-379 kPa )
6
7
15
14
16
13
10
25
20
21
22
23
18
17
RELIEF VALVE - CHARGE:
RESTRICTION
36
RELIEF VALVE - FRONT AUXILIARY
(OPTIONAL) . 2500 PSI (17235 kPa)
31
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
35
PRESSURE:
(S/N 512811001-15999 WITH APITECH AUXILIARY VALVE)
34 FILTER - HYDROSTATIC (CANISTER)
CONTROL VALVE POWER-BEYOND
OUTLET
8
9 RELIEF VALVE - PORT: (OPTIONAL)
3100 PSI (21371 kPa)
2500 PSI (17238 kPa)
12
RELIEF/ANTICAVITATION VALVE -
PORT (TILT BASE END) (OPTIONAL)
TOW VALVE19
24
26 MUFFLER (I f Equipped)
CHARGE PRESSURE SENSOR27
28
FLUID TEMPERATURE SENSOR
29 BYPASS VALVE - COLD OIL
85 PSI (596 kPa)
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - FRONT
AUXILIARY (OPTIONAL ON 853 BASE)
30
32
33
FILTER
37
ANTICAVITATION VALVE
1150 PSI (7929 kPa)
38
HYDRAULIC PUMP
6.0 GPM (22,7 L/ min.)
2750 RPM at
1150 PSI (7929 kPa)
39
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - FLOW
SELECTIVE VALVE
40
CHECK VALVE - FLOW SELECTIVE
VALVE
41 RELIEF VALVE
42
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - RELIEF
SELECTIVE VALVE
43
RELIEF VALVE
2750-2850 PSI (18958-19648 kPa)
853 BASE - N ormally Closed
853 PLUS - Normally Closed
18.0 GPM (68,1 L/ min.)
140°F. (60°C.) F luid at Full RPM
STANDARD . 4350 PSI (29990 kPa
)
OPTIONAL . 5000 PSI (34475 kPa
)
CHECK VALVE - FILTER
44 PILOT TO OPEN CHECK VALVE
45 FILTER
FILTER - HYDRAULIC (CANISTER)
3200-3400 PSI (22061-23439 kPa)
kPa)