Service manual

PUMP CAPACITY:
18.0 GPM (68,1 L/min.)
HI FLOW CAPACITY: (Includes )
24.0 GPM (90,8 L/ min.)
at 2750 RPM
C apacity . . . 16.0 Q ts (15,1 L)
DISPLACEMENT CONTROL VALVE
N eutral . . . . 310-330 PSI
(2137-2275 kPa)
Stroked . . . . 3O0-320 PSI
(2069-2206 kPa)
HYDRAULIC PUMP . . . .Gear Type
290 PSI (2000 kPa)
FLOW DIVIDER ADJUSTMENT VALVE
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
HI-FLOW MACHINE
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
RELIEF/REPLENISHING VALVE - HIGH
RELIEF VALVE - MAIN:
RELIEF VALVE - PORT:
CHECK VALVE - BUCKET POSITION
VALVE
3500 PSI (24132 kPa)
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - AUXILIARY
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 512811001-15999 WITH JEM AUXILIARY VALVE)
MC2399LU (5-19-99)
2
4
3
5
10
VALVE: 45-55 PSI (311-379 kPa)
6
7
14
13
15
12
9
25
19
20
22
17
16
RELIEF VALVE - CHARGE:
38
31
(Printed June 1999)
PRESSURE:
35 FILTER - HYDROSTATIC (CANISTER)
8 RELIEF VALVE - PORT: (OPTIONAL)
2500 PSI (17238 kPa)
2500 PSI (17238 kPa)
11
RELIEF/ANTICAVITATION VALVE -
PORT (TILT BASE END) (OPTIONAL)
TOW VALVE18
OPTIONAL . 5000 PSI (34475 kPa)
24
26 MUFFLER (If Equipped)
CHARGE PRESSURE SENSOR27
28 FLUID TEMPERATURE SENSOR
29
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE - FRONT
AUXILIARY
30
34
36 FILTER - HYDRAULIC (CANISTER)
37
FILTER
COLD OIL BYPASS VALVE
39
ANTICAVITATION VALVE
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
PILOT TO OPEN CHECK VALVE
40
32
RESTRICTION
SYSTEM MAIN RELIEF:
2800 PSI (19306 kPa)
HI FLOW MAIN RELIEF:
3300 PSI (22754 kPa)
STANDARD . 4350 PSI (29990 kPa)
at 1150 PSI (7929 kPa)
RELIEF VALVE - MAIN HIGH FLOW
3000 PSI (20685 kPa)
33
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE
B.O.S.S. L oader - Normally Closed
Standard Loader - Normally Open
140°F. (60°C.) Fluid at Full RPM
CHECK VALVE - FILTER
HYDRAULIC/HYDROSTATIC SCHEMATIC
21 AUXILIARY HYDRAULIC PUMP:
at 1150 PSI (7929 kPa)
at 2750 RPM
6.0 GPM (22,7 L/ min.)
23
CHARGE PUMP . 14.0-15.0 GPM
(52,9-56,7 L/ min.) at 2700 RPM
FILTER
MC2399LU
23