Y-10.
Y-10.
Inspection and Maintenance
54
WY05-4241E
Y-10 Inspection and Maintenance
1. Refer to “Inspection and Maintenance” in “Operation Manual” of its applicable crane.
2. Maintenance of line filter
Maintenance table
Parts
No.
Parts name (used)
Type of work
Points/Quantity
Inspection and
maintenance
interval
1200h
2400h
1 year
2 years
30-1
Slewing pilot circuit
Clean
2 points
●
30-2
30-3
Steering upper circuit
Clean
1 point
●
30-4
Changeover in upper pilot pressure
destination
Clean
1 point
●
30-5
Aux. winch/telescoping and slewing
pilot valve circuit
Clean
1 point
●
30-6
Main winch and elevating pilot valve
circuit
Clean
1 point
●
30-7
Elevation proportional solenoid valve
circuit
Clean
2 points
●
30-8
30-9
Telescoping, elevating pilot valve
(pedal) circuit
Clean
1 point
●
30-10
Positive control circuit
Clean
1 point
●
30-12
Top cylinder selection hydraulic valve
circuit
Clean
1 point
●
30-14
Suspension pilot pressure circuit
Clean
1 point
●
Inside of
31
Source of upper pilot pressure
Clean
1 point
●
Inside of
44
Automatic stop circuit
Clean
2 points
●
61
Winch brake circuit
Clean
1 point
●
86
Steering and slewing pump circuit
Replace
element
1 point
●
(*1)
(Note): For the location of the parts, see "Z-1.1 Comparison table of hydraulic parts (part No., part name,
coordinate and location)”, "Z-6 Hydraulic Parts Location Diagram (Upper)" and "Z-7 Hydraulic Parts
Location Diagram (Lower)" in the chapter Z.
(*1): Or when filter clogging warning lamp lights up.
Summary of Contents for GR-300EX-3
Page 1: ......
Page 8: ...7 WA04 4880E 6 Group index System Diagrams Data Adjustment and Checks Y Z Y Z...
Page 27: ...14 WY02 1792E Y 2 Y 2 Adjusting Pressure Hydraulic Pressure...
Page 98: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 27 WZ07 3762E 7 Gauge 3 343 450 35500...
Page 99: ...Z 6 Z 6 Hydraulic Parts Location Diagram Upper 28 WZ07 3762E 8 Pilot 0 343 458 63000...
