Labounty CP 80, Safety, Operation & Maintenance Manual

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CONCRETE PULVERIZERS
Page 14 Section 5 Maintenance
BOLT TORQUING GUIDELINES
Proper bolt installation is critical to ensure the safe and effi cient operation of the attachment and jaw set.
Carefully follow the steps below to properly install bolts.
1. Always replace bolts and nuts with the same size and class of fastener. Replacement fasteners can be
ordered from the LaBounty Parts Department to ensure the correct part is used. Unless otherwise speci-
fi ed, use class 10.9 metric hex head capscrews, class 10.9 metric fl at head capscrews, and class 12.9 metric
socket head capscrews.
2. Make sure bolts, nuts and bolt holes are free of dirt, oil, grease and other contaminants.
3. If necessary, use the Capscrew Size Guide, below, to determine the size of the bolt being installed.
4. Use the Dry Bolt Torque Chart, below, to fi nd the proper torque. When possible, torque the nut rather than
the bolt head.
METRIC CLASS 10.9
SIZE FT-LBS NM
M10 x 1.5 64 87
M12 x 1.75 110 150
M14 x 1.75 177 240
M16 x 2 269 365
M20 x 2.5 523 710
M24 x 3 899 1220
M30 x 3.5 1806 2450
METRIC CLASS 12.9
SIZE FT-LBS NM
M10 x 1.5 53 72
M12 x 1.75 92 125
M14 x 2 146 198
M16 x 2 224 305
M20 x 2.5 435 590
M24 x 3 752 1020
M30 x 3.5 1511 2050
METRIC CAPSCREW SIZE GUIDE
DRY BOLT TORQUE CHARTS
CAP-
SCREW
SIZE
A
HEX HEAD
B
FLAT HEAD
C
SOCKET
HEAD
M10 x 1.50 0.63” (16mm) 0.79”
(20mm) 0.63”
(16mm)
M12 x 1.75 0.71” (18mm) 0.94”
(24mm) 0.71”
(18mm)
M14 x 2.00 0.83”
(21mm) 1.06”
(27mm) 0.83 (21mm)
M16 x 2.00 0.94”
(23mm) 1.18”
(30mm) 0.94”
(24mm)
M20 x 2.50 1.18”
(30mm) 1.42”
(36mm) 1.18”
(30mm)
M24 x 3.00 1.42 (36mm) N/A 1.42”
(36mm)
M30 x 3.50 1.81 (46mm) N/A 1.77”
(45mm)
A
B
C
HEX HEAD
FLAT HEAD
SOCKET HEAD