John Deere 318 User Manual
Page 36
TUBE AND HOSE FITTING, 37˚ FLARE AND 30˚ CONE SEAT CONNECTOR TORQUE
Thread
Torque
1
New
2
Used
3
Size
N·m
(lb-ft)
Number of Flats
Number of Flats
3/8-24 UNF
8
(6)
2-1/2
1
7/16-20 UNF
12
(9)
2-1/2
1
1/2-20 UNF
16
(12)
2-1/2
1
9/16-18 UNF
24
(18)
2
1
3/4-16 UNF
46
(34)
2
1
7/8-14 UNF
62
(46)
1-1/2
1
1-1/16-12 UN
102
(75)
1
3/4
1-3/16-12 UN
122
(90)
1
3/4
1-5/16-12 UN
142
(105)
3/4
3/4
1-5/8-12 UN
190
(140)
3/4
3/4
1-7/8-12 UN
217
(160)
1/2
1/2
1. Tolerance of ± 10 percent.
2. To be used if a torque wrench cannot be used. After tightening fitting by hand, put a mark across the
fittings, then tighten fitting the number of flats shown.
3. Flare connection seal by deforming or squeezing the tube between the nut and the connector. More
deformation is possible with new parts than with old. Therefore, if a torque
rench is not used for re-assembly, the values in this column must be used to
revent damage.
MX,15901015,5 -19-17JAN95
Repair Specifications/Service Recommendations
TM1590 (17MAY95)
10-15-10
316, 318 & 420 Lawn and Garden Tractors
020895
10
15
10