KEENAN
MechFiber350 and 370 Operator’s Manual
31
Revision D01 21
st
May 2019
8.7 Nuts and bolts
1.
After the first day, and regularly thereafter, inspect wheel nuts and tandem axle U-bolts
(where fitted).
2.
After the first week, and each week thereafter, check all nuts and bolts, including bearing
nuts, for tightness.
General torque
Figure 17: U-bolt position on bogie
8.8 Tyres
1.
Each week, check the tyres for wear and damage.
2.
Each week, check the tyre pressure. Optimum tyre pressures are shown in Table 7.
This information is given as a guide. If in doubt, please contact a KEENAN service
representative.
WARNING:
When refitting and re-inflating tyre/wheel assemblies, a safety cage should be used
to prevent possible injury. Incorrectly fitted tyres are dangerous. Please make sure
tyre repairs are carried out by experienced tyre fitters.
Type
Bar
PSI
305/55 R 22.5
7.0
110
285/70 R 19.5
8.5
125
385/55 R 22.5
9.0
132
385/65 R 22.5 (8 stud)
5.5
81
385/65 R 22.5 (10 stud)
9.0
132
445/45 R 19.5
9.0
132
445/65 R 22.5
9.0
132
Table 7: Tyre pressure
U-bolt diameter (mm)
Tightening torque (Nm)
18
230
22
450
24
500
27
600
Stud/bolt type
FT/LB
Nm
M22
335
450
M20
260
350
M18
200
270
Table 6.2: Recommended torque for U-bolts for tandem
axles (where fitted)
Table 6.1: General torque for wheel studs
U-bolt locations
