Rayco C120R User Manual

C120R Operator Service Maintenance Manual
800.392.2686
41
Specifications
Torque Specifications
General Torque Information
Mismatched or incorrect fasteners can result in damage or malfunction, or possible injury.
Take care to avoid mixing metric dimensioned fasteners and inch dimensioned fasteners.
Exceptions to these torques are given in the Maintenance Section, if necessary.
Prior to installation of any hardware, ensure that components are in near new condition. Bolts and threads
must not be worn or damaged. Threads must not have burrs or nicks. Hardware must be free of rust and
corrosion. Clean the hardware with a noncorrosive cleaner.
Do not lubricate the fastener threads except for the rust preventative. The rust preventative should be
applied by the supplier of that component for purposes of shipping and storage.
Other applications for lubricating components may also be specified in the Maintenance Section.
SAE & Metric Bolt Torque Requirements
SAE GRADE 8 TORQUE (DRY OR LOCTITE)
1/4 12 +/- 2 LB-FT
5/16 26 +/-2 LB-FT
3/8 46 +/-2 LB-FT
7/16 75 +/-5 LB-FT
1/2 115 +/-5 LB-FT
9/16 160 +/-5 LB-FT
5/8 225 +/-10 LB-FT
3/4 400 +/-20 LB-FT
7/8 650 +/-25 LB-FT
1 975 +/-25 LB-FT
1 1/8 1350 +/-25 LB-FT
1 1/4 1950 +/-25 LB-FT
1 3/8 2550 +/-25 LB-FT
1 1/2 3350 +/-50 LB-FT
METRIC CLASS 10.9(DRY OR LOCTITE)
M6 12 +/-2 LB-FT
M8 30 +/-3 LB-FT
M10 60 +/-3 LB-FT
M12 105 +/-5 LB-FT
M14 165 +/-5 LB-FT
M16 255 +/-10 LB-FT
M20 500 +/-20 LB-FT
M24 850 +/-25 LB-FT
M30 1700 +/-25 LB-FT
M36 3000 +/-50 LB-FT
TORQUE SPECIFICATIONS BASED ON 67% OF
BOLT YIELD STRENGTH (UPPER TOLERANCE
NOT TO EXCEED 75% YIELD)
O-RING FACE SEAL TORQUE VALUES
-3 8 TO 10 LB-FT
-4 14 TO 16 LB-FT
-5 18 TO 20 LB-FT
-6 24 TO 26 LB-FT
-8 50 TO 60 LB-FT
-10 72 TO 80 LB-FT
-12 125 TO 135 LB-FT
-16 200 TO 220 LB-FT
-20 210 TO 280 LB-FT
-24 270 TO 360 LB-FT
SAE 37JIC TORQUE VALUES
-3 8 TO 9 LB-FT
-4 11 TO 12 LB-FT
-5 14 TO 15 LB-FT
-6 18 TO 20 LB-FT
-8 36 TO 39 LB-FT
-10 57 TO 63 LB-FT
-12 79 TO 88 LB-FT
-16 108 TO 113 LB-FT
-20 127 TO 133 LB-FT
-24 158 TO 167 LB-FT
-32 245 TO 258 LB-FT
WEATHERHEAD SPEC SHEET PROVIDED BY
MID-STATES

Rayco C120R Specifications

General

Brand	Rayco
Model	C120R
Category	Lawn and Garden Equipment
Language	English