Bobcat 741 - Page 316

PISTON AND CONNECTING ROD (Cont'd)
Inspection
Clean all the parts in clean solvent.
Check the clearance of the new rings in the piston
grooves [AJ .
No . 1 Ring
Standard .. . .. .. 0.0012- 0.0028 inch (0 , 03-0 ,06 mm)
Servi
ce Limit ........... .. .... 0.004 inch (0 ,1 mm)
No. 2 Ring
Standard . .... .. 0.0008--0.0024 inch (0, 02-0 ,06 mm)
Servi
ce Limit ...... . . . . .. . . . .. 0.004 inch (0 ,1 mm)
Check the ring gap
in the cylinder bore [B].
No . 1 & 2 Ring End Gap:
Standard .... . .. ... . . 0.008--0.016 inch (0, 2-0,4 mm)
Service Limit .... .. ... . .. .. . .. 0.039 inch (1,0 mm)
Oil Ri ng Side Rail:
Standard ....... .. ... 0.008--0.020 inch (0, 2-0 ,5 mm)
Service Limit . .
.... . . ... ....... 0.39 inch (1 ,0 mm)
Check the connecting rod
alignment [C].
Connecting Rod Bend:
Standard . .
0.0020/3.937 inches or less (0,05/100 mm)
Assembly
When assembling the piston and connecting rod , make
sure to align the marks on the piston and rod [0].
See Page 78-41 for the correct procedure to press the
piston pin into the connecting rod .
Added Sept. 90
A
-70-38-
B-09730
741,742,743 , 7430S Bobcat Loader
Service Manual