Bobcat 741 - Page 314

VALVES (Cont'd)
Valve Spring (Cont'd)
Check the valve spring tension [A).
New
Preload . . . . . . . . . . . . . . .. 29 Ibs. @ 1 .469 inches
(129 N
@ 37 mm)
Used
Preload .. .. ....... . ... 83 Ibs. @ 1.106 inches
(369 N
@ 28 mm)
Servi
ce Limit .. . ..... . .... . 76 Ibs. @ 1.106 inches
(338 N
@ 28 mm)
The exhaust and intake
valve springs are the same.
When
installing the spring the colored portion (red or
green) is in the up postion [B] .
Check the
valve seat insert depth [C).
If the depth exceed the service limit, replace the valve
seat insert.
Installed Height of Spring:
Standard . .
.......... . ..... 1.469 inches (37,3 mm)
Service Limit . . ... . ........ +0.039 inch (+1,0 mm)
Added Sept. 90
A
B
-70-36-
8-08209
(j
•
i~ntilication Color:
<Q
NOTE:
Install with colored 2:::=:5,.. __ --J
portion up
8-09775
741,742,743,74305 Bobcat Loader
Service Manual