DOC-20230111-WA0038.

SECTION 2
UPPERSTRUCTURE
CONTENTS
Group 1 Cab
Remove and Install Cab .................... W2-1-1
Dimensions of the Cab Glass ............ W2-1-9
Group 2 Counterweight
Remove and Install Counterweight .....W2-2-1
Group 3 Main Frame
Remove and Install Main Frame ............ W2-3-1
Group 4 Pump Device
Remove and Install Pump Device .......... W2-4-1
Disassemble Pump Device .................... W2-4-4
Assemble Pump Device......................... W2-4-8
Disassemble and
Assemble Valve Block ........................ W2-4-12
Disassemble and
Assemble Control Piston .................... W2-4-14
Maintenance Standard ......................... W2-4-16
Disassemble and Assemble Pilot
Pump .................................................. W2-4-18
Group 5 Control Valve
Remove and Install Control Valve 1 ....... W2-5-1
Disassemble Control Valve 1 ................. W2-5-5
Assemble Control Valve 1 .................... W2-5-15
Remove and Install Control Valve 2 ..... W2-5-24
Disassemble Control Valve 2 ............... W2-5-26
Assemble Control Valve 2 .................... W2-5-28
Group 6 Swing Device
Remove and Install Swing Device...... W2-6-1
Disassemble Swing Device................ W2-6-4
Assemble Swing Device .................. W2-6-10
Disassemble Swing Motor .............. W2-6-18
Assemble Swing Motor .................... W2-6-22
Disassemble and Assemble
Valve Block.................................... W2-6-26
Maintenance Standard..................... W2-6-28
Group 7 Pilot Valve
Remove and Install Right Pilot Valve . W2-7-1
Remove and Install Left Pilot Valve.... W2-7-5
Remove and Install Travel
Pilot Valve........................................ W2-7-9
Remove and Install
Blade Pilot Valve............................ W2-7-13
Disassemble Right and Left
Pilot Valves.................................... W2-7-16
Assemble Right and Left
Pilot Valves.................................... W2-7-20
Disassemble Travel Pilot Valve........ W2-7-24
Assemble Travel Pilot Valve ............ W2-7-28
Disassemble Blade Pilot Valve ........ W2-7-34
Assemble Blade Pilot Valve ............. W2-7-36
Group 8 Pilot Shut-Off Valve
Remove and Install Pilot Shut-Off
Valve ............................................... W2-8-1
Disassemble Pilot Shut-Off Valve ...... W2-8-4
Assemble Pilot Shut-Off Valve ........... W2-8-6
1CCW-2-1