Peterbilt 348 2017 - Page 322

FRAME
Every60,000milesor6months:
•Refertospecicmanufacturer's
literatureforanyspecial
instructions.
•Removefthwheelfromvehicle.
RefertotheShopManual,"Fifth
WheelRemoval."
•Steamcleanthefthwheeland
mountingbrackets.
•Checkallmovingpartsfor
excessivewearordamage.
Replaceallwornorbrokenparts.
•Completetwo-monthservice
procedure.
•Installfthwheel.Referto
theShopManual,"FifthWheel
Installation."
FrameFastenerTorque
Requirements
Tightenallframefastenerswitha
torquewrench.Torquespecications
applytothefollowingfastenerswith
lightlylubricatedthreads.
NOTE
Wheneverpossible,torqueallframe
fastenersonthenutend,notthebolt
head.
StandardGrade8UNForUNCandMetric
TORQUE*FAS-
TENER
SIZE
Nm
Lb-Ft
5/16
22-3016-22
3/8
41-5430-40
7/16
75-8855-65
1/2
109-12280-90
9/16
156-190115-140
5/8
224-265165-195
3/4
394-462290-340
7/8
517-626380-460
1952-1,129700-830
1-1/8
1,346-
1,591
990-1,170
1-1/4
1,877-
2,217
1,380-
1,630
METRICWITHNYLONINSERTNUTS
M58-126-9
M69-157-11
M823-3117-23
M1033-4324-32
5-112Y53-6060-1C1(03/17)
5