Fiat 411 R - U-Flex Type Oil Ring; New Drawbar and Hitch

The caiibration with respfifiii T0 i3i'B\‘iOL%8 Dump type PES4A60B4i0:L4j‘i is the same and the gqfqg
diiierence concerns the fuel feeding.
Fuei filter cieaning should be done with petroi every 120 working hours and before reinstaiiing it, it is
advisable to check and to replace it if necessary.
After assembiy, bleed air bubbles from the system by siackening the relevant screw iocaied on the
iniection pump body and by acfuating the priming hand, pump.
U-FLEX TYPE GIL RING -
fix U-Flex type oil-ring has been insiaiied on engines No. i}i6?36 and above. This type ring is higher than
standard ones, therefore the piston groove has been modified accordingly.
Said changes have aéso been made on engines from No. 016266 to 016518;
Modified dimensions are shown in Fig. 289.
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I Fig. 280. - Dimensions of pisicm ring and its graoue.
1 I 12.5 5.530-5.550 mm 5./I80-5.510 mm 12.6-72.4 mm
72.4 (0.217?-0.2184 in.) (0.215?-02169 in.) (28583-2.850-3 in.)
NEVV DRAWBAR AND HITCH
Starting from chassis Na. 429451 up the drawbar and hitch device of the series 400 tractors (except
mod. 431,‘R) have been modified in order to bring iocatiun of the various parts within the requirements of
international standards. Changes are as follows:
~ stronger and simpler frame;
~ more adjustment possibiiities, in fact:
~ the cirawbar plate can be fixed to the tractar at two different heigiizs, and for each one it is
furiermore possible to adjusi the height by turning the drawbar plate upward or downarci, More
verticai settings are possibie by turning over the cirawbar;
—— the drawbar can be set on 3 iongituciinai and on 3 traverse positions.
~— Besides, the lower links are made 4 cm ionger, and the PT~O shait 1 cm ionger.
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