Doosan DX60R Shop Manual page 608

Part No. Part Name
104 Cylinder block
Piston assembly
105 Piston
106 Shoe
107 Retainer plate
108 Thrust ball
227 Valve
149
Ball bearing
150
263 Valve
Travel Motor
Page 50
Phenomenon
• Spline section is worn.
• Inner surface of bore is worn too
much.
• Flaw ad unequal wear on sliding plate
surface with timing plate (109).
• There is clearance in shaft direction
of the piston (105) and shoe (106).
• Shoe is abnormally worn.
• Shoe is unequally worn.
• Circumference and face is unequally
worn.
• Ball surface
phenomenon and equal wear.
• Flaw in sheet surface.
• Has indentation.
• Exhibits flaking phenomenon.
• Worn unequally.
• Flaw on circumference
Standard
Clearance
0.050 mm
(0.0020 in)
has burning
Service
Limit
Clearance
0.150 mm
(0.0059 in)
SP001686