Toro Groundsmaster 4500-D Service Manual page 16

Other Torque Specifications
SAE Grade 8 Steel Set Screws
Thread Size
Square Head
1/4 -- 20 UNC 140 + 20 in--lb
5/16 -- 18 UNC 215 + 35 in--lb
3/8 -- 16 UNC 35 + 10 ft--lb
1/2 -- 13 UNC 75 + 15 ft--lb
Thread Cutting Screws
(Zinc Plated Steel)
Type 1, Type 23 or Type F
Thread Size
No. 6 -- 32 UNC
No. 8 -- 32 UNC
No. 10 -- 24 UNC
1/4 -- 20 UNC
5/16 -- 18 UNC
3/8 -- 16 UNC
Conversion Factors
in- -lb X 11.2985 = N- -cm
ft- -lb X 1.3558 = N- -m
Product Records and Maintenance
Recommended Torque
Hex Socket
73 + 12 in--lb
145 + 20 in--lb
18 + 3 ft--lb
50 + 10 ft--lb
Baseline Torque*
20 + 5 in--lb
30 + 5 in--lb
38 + 7 in--lb
85 + 15 in--lb
110 + 20 in--lb
200 + 100 in--lb
Wheel Bolts and Lug Nuts
Thread Size
7/16 -- 20 UNF
Grade 5
1/2 -- 20 UNF
Grade 5
M12 X 1.25
Class 8.8
M12 X 1.5
Class 8.8
** For steel wheels and non--lubricated fasteners.
Thread Cutting Screws
Thread Threads per Inch
Size
Type A
No. 6 18
No. 8 15
No. 10 12
No. 12 11
* Hole size, material strength, material thickness and fin-
ish must be considered when determining specific
torque values. All torque values are based on non--lubri-
cated fasteners.
N- -cm X 0.08851 = in- -lb
N- -m X 0.7376 = ft- -lb
Page 2 - - 6
Recommended Torque**
65 + 10 ft--lb 88 + 14 N--m
80 + 10 ft--lb 108 + 14 N--m
80 + 10 ft--lb 108 + 14 N--m
80 + 10 ft--lb 108 + 14 N--m
(Zinc Plated Steel)
Baseline Torque*
Type B
20 20 + 5 in--lb
18 30 + 5 in--lb
16 38 + 7 in--lb
14 85 + 15 in--lb
Groundsmaster 4500--D/4700--D