Sheyenne tooling & Mfg 500CT, Руководство оператора

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MAINTENANCE
(cont.)
17. Stop engine and relieve hydraulic
pressure before connecting or disconnecting
lines. Tighten all connections before starting
engine or pressurizing lines.
18.
SHEAR PROTECTION
The compact tractor snowblower is shear
protected in multiple ways.
First by two 3/8 X 3-1/2”, Grade 5, Hex Head
capscrews located at each end of the auger shaft.
See diagram below.
Secondly, by the hydraulic relief valve which is
normally mounted on the loader arm.
Thirdly, current, redesigned snowblower models
have shear bolts located on the top cross shaft.
BOLT TORQUE SPECIFICATIONS
The table shown below gives correct torque
values for various bolts and cap screws.
Tighten all bolts to the torques specified in this
chart unless otherwise noted. Check tightness
of bolts periodically, using bolt torque chart as
a guide. Replace hardware with the same grade
or strength bolt. Bolt and cap screws are
identified by their head markings.
Torque Specifications
in Pound-Feet
Bolt
Diameter
“A”
SAE 2 SAE 5 SAE 8
1/4” 6 9 12
5/16” 10 19 27
3/8” 20 33 45
7/16” 30 53 75
1/2” 45 80 115
9/16” 70 115 165
5/8” 95 160 220
3/4” 165 290 400
7/8” 170 420 650
1” 225 630 970
Torque figures indicated above are valid for
non-greased or non-oiled threads and heads
unless otherwise specified. Therefore, do not
grease or oil bolts or cap screws unless
specified in this manual. When using locking
elements, increase torque values by 5%.
Figures apply to both course and fine threads.
23
Grade Grade Grade
2 5 8
10-24 x 1-1/4
Socket head cap screw, Gr8 with
10-24 NC nylon lock nut, Zp
1/4 x 1-1/4
Hex head cap screw, Gr5
with 1/4” Top lock nut