77
M1.9-14.0-001
04 Rev. 9/06
LUBRICATION & ADJUSTMENT
Torque Values
Torque Values
All Crown Trucks are manufactured with Grade 5 or
better screws and bolts. The information contained in
this section will aid you when replacing any screws and
bolts that are necessary when performing maintenance
on your lift truck.
Grade
Figure 14916
Grade Marking
(on Head)
Specification Material
Bolt and Screw
Size (Inches)
SAE - Grade 2
SAE - Grade 5
SAE - Grade 8
Low Carbon Steel
Medium Carbon Steel,
Quenched and Tempered
Medium Carbon Alloy Steel,
Quenched and Tempered
1/4 thru 1-1/2
1/4 thru 1-1/2
1/4 thru 1-1/2
NOTE: Even though a bolt head is unmarked, Crown uses nothing less than Grade 5 in all of its bolted
assemblies. Instances do occur when Grade 5 bolts are manufactured unmarked. When a fastener is
replaced that is unmarked, replace the fastener with a Grade 5.
Crown 1979 PF5067-1 Rev. 9/06
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