CD397-Oper
Operation - 3 - 11
August 2018 (Rev B)
Operation
Mobile Belt Loader Model 660-28
Section 3
Operation Manual
3.12
Critical
Torque
Values
3.12.1
Torque
Values
Metric capscrews and nuts are identified by the grade number stamped on the head of the capscrew or
surface of a nut; while Standard capscrews are identified by a series of lines:
•
Grade 5: three (3) lines
•
Grade 8: six (6) lines
Figure
Operation-3-5:
Capscrew
Examples
The following torque tables apply to graded metric and standard fasteners used on the 660-28. The listed
values apply to bolts threaded into either nuts or tapped holes in iron or steel. These torque values are not
a replacement for torque values specified elsewhere in this manual.
Table
Operation-3-16:
Critical
Torque
Values
Item
Torque
Values
Rear Axle U-bolts
65 lb-ft (88 Nm)
Front Axle U-bolts
65 lb-ft (88 Nm)
Drive shaft U-joint Saddles
32 lb-ft (43.4 Nm)
Transmission U-joint
32 lb-ft (43.4 Nm)
Transmission Isolator
18 lb-ft (24.4 Nm)
Transmission Bell housing to Engine
37 lb-ft (500.2 Nm)
Brake Hoses at Front Calipers
38 lb-ft (51.5 Nm)
Manifold Bolt
24 lb-ft (32.5 Nm)
Retainers
32.5 lb-ft (44.1 Nm)
Conveyor Motor
35 lb-ft (47.5 Nm)
Flywheel to Torque Converter
46 lb-ft with 242 loctite (62.4 Nm)
8.8
Metric Capscrew
Standard Capscrew
Property
of
American
Airlines
