TM 5-3805-280-24-2
Hydraulic System
1--Left Control Valve--
15--Pilot Pressure From
24--To Swing Motor
39--To Bucket Cylinder
5-Spool
Pilot Shut-Off Valve to
Make-Up Oil Port
Head End--Bucket
2--Right Control Valve--
Solenoid Valve
25--To Hydraulic Oil
Curl
4-Spool
Manifold
Cooler
40--To Boom Cylinder
5--To Rear Pump Control
16--Pilot Pressure to Front
32--To Propel Motor Speed
Head End--Boom Up
Valve
Pump Control Valve
Change Valve
41--To Boom Cylinder Rod
7--To Swing Motor Park
17--Arm In Pilot To Bucket
33--Speed Sensing
End--Boom Down
Brake Release Valve--
Flow Control Valve--
Solenoid Valve To
42--Pilot Pressure From
Bottom Port
Front Bottom Port
Front and Rear Pump
Boom Up Pilot Cap To
9--Power Boost Solenoid
18--Arm In Pilot From Left
Regulator Speed
Bucket Flow Control
Valve to System Relief
Pilot Controller--SAE
Sensing Port
Valve
Valve
Pattern
34--Arm Regenerative
43--Return To Hydraulic
10--Return to Hydraulic
19--Boom Down Pilot
Solenoid Valve To Arm
Tank
Tank
From Right Pilot
Regenerative Valve
44--Supply Oil From Rear
11--Return From Pilot
Controller--SAE
35--Supply Oil From Front
Pump
Shut-Off Valve
Pattern
Pump
45--To Front Pump Control
12--Pilot Pressure Signal
20--Bucket Curl Pilot From
36--Right Propel Forward
Valve Pressure Sensor
To Swing Motor Park
Right Pilot Controller
To Rotary Manifold
and Front Pump
Brake Release Valve--
21--Right Propel Reverse
Right Front Port
Regulator
Top Port
Pilot From Propel Pilot
37--Right Propel Reverse
46--Return From Front
13--Return From Bucket
Controller
To Rotary Manifold
Pump Control Valve
Flow Control Valve To
22--Swing Right Pilot
Right Rear Port
and Warm-Up Circuit
Solenoid Valve
From Left Pilot
38--To Bucket Cylinder
To Hydraulic Tank
Manifold
Controller
Rod End--Bucket
14--Return From Propel
23--Left Propel Reverse
Dump
Flow Control Valve To
Pilot From Propel Pilot
Solenoid Valve
Controller
Manifold
TX,33,UU4002
1921SEP985/8
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