TM 5-3805-281-24-2
Hydraulic System
1--Left Control Valve
13--Boom Up Pilot
23--Propel Flow Control
32--Shuttle
2--Right Control Valve
Cap-to-Bucket Flow
Valve-to-Bucket Flow
Valve-to-System Relief
3--Front Pump
Control Pilot Valve A
Control Pilot Valve A
and Power Boost
33
Outlet-to-Right Control
Port Line
Port Line
Valve Port Line
3360
Valve Inlet Port Line
14--Propel Pilot Controller
24--Control Valve-to-Swing
33--Power Boost Solenoid
91
4--Right Propel Forward
Port 1-to-Left Propel
Motor Oil Make-Up
Valve-to-Shuttle Valve
Work Port-to-Rotary
Forward Pilot Cap Port
Port Line
Port Line
Manifold Right Front
Line
25--Left Propel Reverse
34--Propel Speed Change
Port Line
15--Arm Rod End Reduced
Work Port-to-Rotary
Solenoid
5--Right Propel Reverse
Leakage Pilot
Manifold Left Front
Valve-to-Rotary
Work Port-to-Rotary
Valve-to-Orifice and
Port Line
Manifold Port Line
Manifold Right Rear
Hydraulic Oil Tank
26--Left Propel Forward
35--Speed Sensing
Port Line
16--Arm In (Arm I) Pilot
Work Port-to-Rotary
6--Propel Pilot Controller
Cap-to-Arm Rod End
Manifold Left Rear
Pump Regulator Speed
Port 4-to-Right Propel
Reduced Leakage Pilot
Port Line
Sensing Port Line
Forward Pilot cap Line
Valve Port Line
27--Rear Pump Control
36--Arm Regenerative
7--Right Pilot Controller
17--Swing Left Work
Valve-to-Rear Pump
Port 1-to-Bucket Dump
Port-to-Swing Motor
Pressure Sensor and
Regenerative Valve
Pilot Cap Line
Front Port Line
Pump Regulator Port
Port Line
8--Flow Regulator Valve
18--Swing Right Work
Line
37--Pilot Shut-Off
Port 1-to-Boom Up
Port-to-Swing Motor
28--Solenoid Valve
Valve-to-Solenoid
(Boom II) Pilot Cap Line
Rear Port Line
Manifold PH
Valve Manifold PF Port
9--Right Pilot Cap
19--Arm Head End
port-to-Rear Pump
Line
Warm-Up and Air Bleed
Reduced Leakage
Control Valve Port
38--Solenoid Valve
Circuit-to-Hydraulic Oil
Valve DR
Line
Manifold DS
Tank Line
Port-to-Solenoid Valve
29--Rear Pump Control
Port-to-Hydraulic Oil
10--Left Pilot Cap
Manifold DG Port Line
Valve-to-Hydraulic Oil
Tank Port Line
Warm-Up and Air
20--Flow Regulator Valve
Tank Port Line
39--System Relief Valve
Bleed
Port 3 Tee
30--Pilot Pressure
Bottom Port-to-Tee on
Circuit-to-Hydraulic Oil
Fitting-to-Arm Head
Regulating
Swing Park Brake
Tank Line
End Reduced Leakage
Valve-to-Control Valve
Release Valve HS Port
11--Flow Regulator Valve
Valve PL Port Line
Pilot Pressure Signal
Line
Port 6-to-Swing Right
21--Arm Out Work
Passage Port Line
Pilot Cap Line
Port-to-Arm Cylinder
31--Propel Pilot Signal
12--Flow Regulator Valve
Rod End Port Line
Passage-to-Shuttle
Port 3-to-Arm Out
22--Arm In Work
Valve Port Line
(Arm I) Pilot Cap Port
Port-to-Arm Cylinder
Line
Head End Port Line
Continued on next page
TX,33,GG2561 1912MAR973/9
19-124