Komatsu PC138US-11 Operation & Maintenance Manual page 364

MAINTENANCE PROCEDURE
(2) Boom foot pin (2 places)
(3) Boom cylinder rod end pin (2 places)
(4) Arm cylinder foot pin (1 place)
(5) Boom and arm connection pin (1 place)
(6) Arm cylinder rod end (1 place)
(7) Bucket cylinder foot pin (1 place)
(8) Arm-Link connection pin (1 place)
(9) Link connection pin (1 places)
(10) Bucket cylinder rod end (1 place)
(11) Bucket and Link connection pin (2 places)
(12) Blade connection pin (2 places)
(13) Blade cylinder foot pin (2 places)
(14) Blade cylinder rod end pin (2 places)
3.
After greasing, wipe off any old grease that is pushed out.
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MAINTENANCE