331-331e-334 Hydraulic Schematic v-0984legend-2

HYDRAULIC/HYDROSTATIC SCHEMATIC
331 (S/N AACS11001 AND ABOVE)
(S/N A9K511001 AND ABOVE)
331E (S/N A9K911001 AND ABOVE)
334 (S/N A9K711001 AND ABOVE)
(PRINTED MAY 2009)
V-0984legend
HYDRAULIC RESERVOIR: Pressurized
with Fill Strainer
Reservoir Capacity . .31.2 qt. (29.5 L)
1
PRESSURIZED BREATHER/FILL CAP
with FILTER:
5 PSI (3.4 bar) - Outlet
0.435 PSI (0.3 bar) - Inlet
2
3
4
17
18
19
5
20
21
22
23
24
25
26
27
28
CASE DRAIN FILTER - with By-Pass
Element - 40 Micron
By-Pass - 25 PSI (1.72 bar)
LEGEND
TRAVEL MOTOR SPOOL
6
7
8
9
10
11
12
13
Printed in U.S.A.
29
30
ACCUMULATOR - 165 PSI ( 11,4 bar)
HYDRAULIC PUMP . . . . . . Two Section -
Variable Displacement Piston Pump
Section A1 & A2:
10.4 GPM (39,2 L/min.) at High Engine RPM
RELIEF VALVE - PORT:
2610 PSI (180 bar)
RELIEF VALVE - Cross Port:
3050 PSI (211 bar)
15
16
14
ORIFICE - 0.065 inch (1,65 mm)
SHUTTLE ORIFICE - 0.031 inch (0,79 mm)
MAIN RELIEF VALVE:
3480 PSI (240 bar)
ANTI-CAVITATION VALVE
RELIEF VALVE - PORT:
3625 PSI (250 bar)
RELIEF VALVE - PORT:
3915 PSI (270 bar)
LOAD SENSE BLEED VALVE
RELIEF VALVE:
218 PSI (15 bar)
HYDRAULIC FILTER - with By-Pass
Element - 15 Micron
By-Pass - 50 PSI (3.44 bar)
VALVE - 2-Speed
PRESSURE REDUCING VALVE:
435 PSI (30 bar)
TEST PORT - "P1" PORT - System
Pressure
TEST PORT - "B" PORT - Joystick Pilot
Pressure
TEST PORT - "G" PORT - Pressure
Reducing Valve
SHUTTLE ORIFICE - 0.022 inch (0,56 mm)
RELIEF VALVE - PORT:
2610 PSI (180 bar)
ANTI-CAVITATION VALVE
RELIEF VALVE - PORT:
3915 PSI (270 bar)
RELIEF VALVE - PORT:
3625 PSI (250 bar)
RELIEF VALVE - PORT:
3915 PSI (270 bar)
RELIEF VALVE - PORT:
3915 PSI (270 bar)
RELIEF VALVE - PORT:
3915 PSI (270 bar)
1 of 2
Dealer Copy -- Not for Resale
V-0984legend (5-6-09)
NOTE: Unless otherwise specified
springs have NO significant
pressure value.
31
TEST PORT - Pump Pressure
SHUTTLE ORIFICE - 0.096 inch (2,44 mm)
Model 331E ONLY
32
ORIFICE - Straight Travel
33
CHECK VALVE
34
COMPENSATOR
35
LOAD CHECK
36
CROSS PORT RELIEF VALVES (Travel
Motor)
37
AUXILIARY DIRECT TO TANK (Optional)
38
AUXILIARY QUICK COUPLERS
39
40
ORIFICE - 0.082 inch (2,10 mm)
41
ORIFICE - 0.108 inch (2,74 mm)
42
43
44
45
46
CHECK VALVE 80 PSI (5,5 bar)
CHECK VALVE – Load Sense
ORIFICE - 0.025 inch (0,64 mm)
FILTER – Hydraulic X-Change Valve
SOLENOID ACTIVATED DIRECTIONAL
CONTROL VALVE (TWO COIL)
PILOT ACTIVATED DIRECTIONAL
CONTROL VALVE – Slew Lock Valve
(Used on S/N A9K511108 & Above ONLY,
S/N A9K711106 & Above ONLY
AND S/N A9K911053 & Above ONLY)
47
HYDRAULIC/HYDROSTATIC SCHEMATIC
331 (S/N AACS11001 AND ABOVE)
(S/N A9K511001 AND ABOVE)
331E (S/N A9K911001 AND ABOVE)
334 (S/N A9K711001 AND ABOVE)
(PRINTED MAY 2009)
V-0984legend
LEGEND
2 of 2
Dealer Copy -- Not for Resale