Big Bee Gear Drive 6 Tines, Operator'S Manual

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14
Torque Values Chart for Common Bolt Sizes
Bolt Head Identification Bolt Head Identification
Bolt Size
(inches) Grade 2 Grade 5 Grade 8
Bolt Size
(Metric) Class 5.8 Class 8.8 Class 10.9
in-tpi
1
N · m
2
ft-lb
3
N · m ft-lb N · m ft-lb mm x pitch
4
N · m ft-lb N · m ft-lb N · m ft-lb
1/4" - 20 7.4 5.6 11 8 16 12 M 5 X 0.8 4 3 6 5 9 7
1/4" - 28 8.5 6 13 10 18 14 M 6 X 1 7 5 11 8 15 11
5/16" - 18 15 11 24 17 33 25 M 8 X 1.25 17 12 26 19 36 27
5/16" - 24 17 13 26 19 37 27 M 8 X 1 18 13 28 21 39 29
3/8" - 16 27 20 42 31 59 44 M10 X 1.5 33 24 52 39 72 53
3/8" - 24 31 22 47 35 67 49 M10 X 0.75 39 29 61 45 85 62
7/16" - 14 43 32 67 49 95 70 M12 X 1.75 58 42 91 67 125 93
7/16" - 20 49 36 75 55 105 78 M12 X 1.5 60 44 95 70 130 97
1/2" - 13 66 49 105 76 145 105 M12 X 1 90 66 105 77 145 105
1/2" - 20 75 55 115 85 165 120 M14 X 2 92 68 145 105 200 150
9/16" - 12 95 70 150 110 210 155 M14 X 1.5 99 73 155 115 l215 160
9/16" - 18 105 79 165 120 235 170 M16 X 2 145 105 225 165 315 230
5/8" - 11 130 97 205 150 285 210 M16 X 1.5 155 115 240 180 335 245
5/8" - 18 150 110 230 170 325 240 M18 X 2.5 195 145 310 230 405 300
3/4" - 10 235 170 360 265 510 375 M18 X 1.5 220 165 350 260 485 355
3/4" - 16 260 190 405 295 570 420 M20 X 2.5 280 205 440 325 610 450
7/8" - 9 225 165 585 430 820 605 M20 X 1.5 310 230 650 480 900 665
7/8" - 14 250 185 640 475 905 670 M24 X 3 480 355 760 560 1050 780
1" - 8 340 250 875 645 1230 910 M24 X 2 525 390 830 610 1150 845
1" - 12 370 275 955 705 1350 995 M30 X 3.5 960 705 1510 1120 2100 1550
1-1/8" - 7 480 355 1080 795 1750 1290 M30 X 2 1060 785 1680 1240 2320 1710
1-1/8" - 12 540 395 1210 890 1960 1440 M36 X 3.5 1730 1270 2650 1950 3660 2700
1-1/4" - 7 680 500 1520 1120 2460 1820 M36 X 2 1880 1380 2960 2190 4100 3220
1-1/4" - 12 750 555 1680 1240 2730 2010
1
in-tpi = nominal thread diameter in inches-threads per inch
1-3/8" - 6 890 655 1990 1470 3230 2380
2
N· m = newton-meters
1-3/8" - 12 1010 745 2270 1670 3680 2710
3
ft-lb= foot pounds
1-1/2" - 6 1180 870 2640 1950 4290 3160
4
mm x pitch = nominal thread diameter in millimeters x thread
pitch
1-1/2" - 12 1330 980 2970 2190 4820 3560
5.8
8.8 10.9
9. TORQUE VALUES TABLE
10. PART CATALOGUE
13
Solution – Open the side gear cover and replace the part which is broken.
a. First remove the lock & loose the check nut.
b. Pull out the gears and check the broken parts.
c.
If the transmission shaft is broken, replace the shaft then assemble the gear box with
rotary tiller.
d. If gear is broken then replace the gear and tighten the cover nuts.
For RD shaft the process will be different
e. First open the flange bolt of the rotor on both side (RD shaft and Dead shaft) and remove
the rotor.
f. Loosen the check nut of RD shaft and hammer it till it gets out from the RD shaft hub &
then replace the RD shaft and tight the check nut. Take care of the seal as it should not be
harmed with this replacement.
The same process be followed for dead shaft replacement.
3. Problem— Oil leakage from the RD shaft hub or dead hub.
Seal is wearing out needs to replaced it. Cause of problem –
Solution – Open the hub assembly as before
a. Take out the hub from the plate by loosening the bolts
b. Remove the lock and pull out the shaft.
c.
Pull out the seal from both shaft and hub then replace it with new one
d. Inspect the position of bearing and hub if it is ok. Clean it and assemble as before.
e. Proper greasing is very necessary in assembly processes.