TM 5-3805-281-24-2
Hydraulic System
1--Left Control Valve
19--Check Valve and
49--Bucket Flow Control
61--Front Pump Control
(5-Spool)
Orifice (in Arm II
Poppet Valve
Valve Pilot Inlet Filter
2--Right Control Valve
Spool)
50--Bucket Flow Control
62--Oil Cooler Bypass
33
(4-Spool)
21--Swing Valve
Pilot Valve B
Valve
3360
5--Flow Combiner Valve
38--Rear Pump Control
51--Boom Reduced
63--Boom Down Circuit
103
6--System Relief Valve
Valve Pilot Inlet Filter
Leakage Pilot Valve
Relief and
Isolation Check Valve
39--Pilot Pressure Signal
53--Boom Reduced
Anti-Cavitation Valve
7--System Relief Valve
Passage Filter
Leakage Check Valve
64--Auxiliary Circuit Relief
Isolation Check Valve
42--Solenoid Valve
54--Boom I Power
and Anti-Cavitation
9--Left Propel Valve
Manifold
Passage Lift Check
Valve
10--Right Propel Valve
43--Arm Regenerative
Valve
65--Bucket Load Circuit
11--Auxiliary Valve
Solenoid Valve
56--Orifice and Arm II
Relief and
12--Bucket Valve
44--Speed Sensing
Power Passage Lift
Anti-Cavitation Valve
13--Boom II Valve
Solenoid Valve
Check Valve
66--Arm In Circuit Relief
14--Boom I Valve
45--Propel Speed Change
57--Arm II Neutral Passage
and Anti-Cavitation
15--Boom Regenerative
Solenoid Valve
Lift Check Valve
Valve
Valve (in Boom I
46--Power Boost Solenoid
59--Front Pump Bypass
67--Bucket Flow Control
Spool)
Valve
Shut-Off Valve Outlet
Pilot Valve A
16--Arm I Valve
47--Orifice and Bucket
Port
17--Arm II Valve
Power Passage Lift
60--Bypass Shut-Off Valve
18--Arm Regenerative
Check Valve
Pilot Port
Valve (in Arm II Spool)
1. Use three previous illustrations to locate individual
components on assembled control valve.
Continued on next page
CED,OUOE026,13 1919JUN986/21
19-135
