TM 5-3805-280-24-1
Diagnostic Information
1--Left Control Valve
16--Pilot Pressure to Front
32--To Propel Motor Speed
41--To Boom Cylinder Rod
(5-Spool)
Pump Control Valve
Change Valve
End--Boom Down
2--Right Control Valve
17--Arm In Pilot To Bucket
33--Speed Sensing
42--Pilot Pressure From
(4-Spool)
Flow Control Valve--
Solenoid Valve To
Boom Up Pilot Cap To
5--To Rear Pump Control
Front Bottom Port
Front and Rear Pump
Bucket Flow Control
Valve
18--Arm In Pilot From Left
Regulator Speed
Valve
7--To Swing Motor Park
Pilot Controller--SAE
Sensing Port
43--Return To Hydraulic
Brake Release Valve--
Pattern
34--Arm Regenerative
Oil Tank
Bottom Port
19--Boom Down Pilot
Solenoid Valve To Arm
44--Supply Oil From Rear
9--Power Boost Solenoid
From Right Pilot
Regenerative Valve
Pump
Valve to System Relief
Controller--SAE
35--Supply Oil From Front
45--To Front Pump Control
Valve
Pattern
Pump
Valve Pressure Sensor
10--Return to Hydraulic
20--Bucket Curl Pilot From
36--Right Propel Forward
and Front Pump
Tank
Right Pilot Controller
To Rotary Manifold
Regulator
11--Return From Pilot
21--Right Propel Reverse
Right Front Port
46--Return From Front
Shut-Off Valve
Pilot From Propel Pilot
37--Right Propel Reverse
Pump Control Valve
12--Pilot Pressure Signal
Controller
To Rotary Manifold
and Warm-Up Circuit
To Swing Motor Park
22--Swing Right Pilot
Right Rear Port
To Hydraulic Oil Tank
Brake Release Valve--
From Left Pilot
38--To Bucket Cylinder
Top Port
Controller
Rod End--Bucket
13--Return From Bucket
23--Left Propel Reverse
Dump
Flow Control Valve To
Pilot From Propel Pilot
39--To Bucket Cylinder
Solenoid Valve
Controller
Head End--Bucket
Manifold
24--To Swing Motor
Curl
14--Return From Propel
Make-Up Oil Port
40--To Boom Cylinder
Flow Control Valve To
25--To Hydraulic Oil
Head End--Boom Up
Solenoid Valve
Cooler
Manifold
9025
15
29
TX,9025,GG2629
1908JUN982/2
6-117
