LUBRICATION OF THE HYDRAULIC EXCAVATOR (CONT’D)
PIVOT PINS Inspection And Maintenance
Lubrication Locations (Cont’d) Figure 250 Figure 249
18
2
17 16
3
1
2 1
3 P-91983A P-91982
The pivots and cylinders (Item 1) have a large pin held in position with a bolt (Item 2) and double nuts (Item 3) [Figure 250] securing the pin.
17. Boom Swing Cylinder Base end (1) [Figure 249]. Lubricate the following locations on the hydraulic excavator EVERY 50 HOURS:
The the two nuts (Item 3) are used as jam nuts to hold the bolt (Item 2) with out tightening the bolt (Item 2) to the pin boss. After the nuts (Item 3) are tightened together, the bolt (Item 2) should be free to spin. See your Bobcat dealer for replacement parts.
18. Swing Circle (1) [Figure 249]. 19. Swing Pinion (1) [Figure 249]. (Install 3 to 4 pumps of grease then rotate the upperstructure 90°. Install 3 to 4 pumps of grease and again rotate the upperstructure 90°. (Repeat this until the slew pinion has been greased at four positions.)
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E45 Operation & Maintenance Manual
