Doosan DX60R Shop Manual page 720

5. Coat three parallel pins with grease and insert them into
cylinder block.
6. Assembling Rotary Group
7. Install ten pistons into retainer.
8. Coat inside of the guides with grease.
9. Install guides between retainer and cylinder block and
then insert pistons into cylinder block.
10. Install rotary group assembly into spool axle.
NOTE:
While assembling, coat the slipping face of the
piston shoe and the contact points of the control
plate cylinder block with grease.
Main Pump
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Figure 69
Figure 70
Figure 71
Figure 72
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