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Kenworth Manuals
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K270
Body builder's manual
Kenworth K270 Body Builder's Manual
Medium duty
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Contents
Table of Contents
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Table of Contents
Table of Contents
Section 1 Introduction
Safety Signals
Section 2 Safety & Compliance Safety Signals
Federal Motor Vehicle Safety Standards Compliance
Incomplete Vehicle Certification
Noise and Emissions Requirements
Section 2 Safety & Compliance
Section 3 Dimensions
Abbreviations
Table 3-1. Abbreviations Used
Turning Radius
Table 3-2 Turning Radius
Cab Tilt
K270 W/19.5 Tires
K370 W/19.5 Tires
Table 3-3 Cab Tilt Height
K370 W/22.5 Tires
Overall Dimensions
Figure 3-1. Side View - K270 W/19.5 Tires Height and Length Measurement
Table 3-4. Overall K270 W/19.5 Tires Dimensions Inches (MM)
Figure 3-2. Side View -K370 W/19.5 Tires Height and Length Measurement
Side View - K370
Table 3-5.1. Overall K370 W/19.5 Tires Dimensions
Figure 3-3. Side View -K370 W/22.5 Tires Height and Length Measurement
Table 3-5.2. K370 W/22.5 Tires Overall Dimensions
Figure 3-4. K270/K370 W/19.5 Tires Front View: Width and Ground Clearance Measurements: Inches
Figure 3-4.1. K270/K370 W/22.5 Tires Front View: Width and Ground Clearance Measurements: Inches
Front and Rear Views - K270/K370
Figure 3-5. K270 W/19.5 Tires Rear View: Width and Ground Clearance Measurements: Inches (MM)
Figure 3-5.1 K370 W/19.5 Tires Rear View: Width and Ground Clearance Measurements: Inches (MM)
Detail Views
Left Side: Chassis Heights -K270 W/19.5 Tires
Figure 3-6. Cab Floor: Side View, Left Side
Table 3-6 K270 W19.5 Tires Battery Box Step and Cab Floor Measurements
Left Side: Chassis Heights - K370
Table 3-7.1 Battery Box Step and Cab Floor Measurements W/ 19.5 Tires
Figure 3-7.1. Cab Floor: Side View, Left Side W/ 22.5 Tires
Table 3-7.2 Battery Box Step and Cab Floor Measurements W/22.5 Tires
Table 3-8 Floor to Frame Measurements
Components Locations -K270 W/19.5 Tires
Figure 3 -8.1.1 K270 W/ Air to Oil Transmission Cooler, Battery Box, Fuel Tank, Air Tank, DEF Tank, and Crossmember Location Measured from Front Axle: Inches (MM)
Figure 3-8.1.2 K270 W/ Oil to Water Transmission Cooler, Battery Box, Fuel Tank, Air Tank, DEF Tank, and Crossmember Location Measured from Front Axle: Inches (MM)
Components Locations -K370
Figure 3-8.2.2 K370 W/Oil to Water Transmission Oil Cooler and 19.5 Tires, Battery Box, Fuel Tank, Air Tank, DEF Tank, and Crossmember Location Measured from Front Axle: Inches (MM)
Figure 3-8.2.3 K370 22.5 Tires, Battery Box, Fuel Tank, Air Tank, DEF Tank, and Crossmember Location Measured from Front Axle: Inches (MM)
Figure 3-8.2.4 K370 22.5 Tires, Battery Box, Dual Fuel Tanks, Air Tank, DEF Tank, and Crossmember Location Measured from Front Axle: Inches (MM)
Figure 3-8.2.5 K370 22.5 Tires, Short Wheelbase, Air Tanks on the RH Side, Battery Box, DEF Tank and Crossmember Location Measured from Front Axle: Inches (MM)
Crossmember Locations -K270 W/19.5 Tires
Figure 3-9.1. K270 Crossmember Location
Table 3-9.1. K270 Crossmember Location Measured from the Front of the Frame Inches (MM)
Figure 3-9.2. K370 Crossmember Locations
Table 3-9.2 K370 Crossmember Location Measured from Front Axle Centerline Inches (MM)
Frame Rail Configurations
Figure 3-10. K270/K370 Rail Measurements
Table 3-10. Frame Rail Strength Characteristics
Battery Box, Fuel Tanks and Air Tanks - K270/K370
Figure 3-11. K270/K370 Battery Box, Fuel Tank and Air Tanks Measurement MM (In)
DPF & SCR Locations - K270/K370
Figure 3-11. K270/K370 Exhaust Measurements
Table 3-12. K270/K370 Exhaust Location Measured from BOC Inches (MM)
Table 3-13. K270 / K370 Exhaust Location Measured from BOC Inches (MM)
Reyco 79KB Single Rear Axle Hendrickson HAS Single Rear Axle
Tire Data
Frame and Cab Related Heights
Ground Clearances
PTO Clearances
Figure 3-14.1 K370 PTO Clearances 1 of 2
Figure 3-15 K270 PTO Clearances
Section 4 Exhaust & Aftertreatment
Exhaust and Aftertreatment Information
General Guidelines for DEF System
Installation Requirements and Dimensions for DEF System
Measurement Reference Points
Figure 4-1: Measurement Location of DEF Supply Module (Pump)
Figure 4-2: Measurement Location of DEF Dosing Module (Injector)
Figure 4-3: Orientation of Dosing Module
Figure 4-4: Routing DEF Lines and DEF Trap
General Exhaust Information
Figure 4-5: Horizontal Crossover DPF and SCR with Horizontal Tailpipe
Figure 4-5.1: Top View of Horizontal Crossover DPF and SCR with Horizontal Tailpipe
Figure 4-5.2: Right View of Horizontal Crossover DPF and SCR with Horizontal Tailpipe
Figure 4-5.3: Back View of Horizontal Crossover DPF and SCR with Horizontal Tailpipe
Section 5 Frame Layouts and Body Mounting
Frame Layouts
Visual Index
Table 5-1 Symbols
Acronyms Index
Figure 5-1: Horizontal Crossover DPF/SCR, LH Horizontal Tailpipe, RH BOC Rectangular Fuel Tank, RH BOC Rectangular DEF Tank and LH BOC Battery Box
Figure 5-2: Horizontal Crossover DPF/SCR, LH Horizontal Tailpipe, RH BOC Rectangular Fuel Tank, RH BOC Rectangular Fuel Tank, RH BOC Rectangular DEF Tank and LH BOC Battery Box
Critical Clearances
Rear Wheels and Cab
Figure 5-2. Minimum Clearance between Top of Rear Tires and Body Structure Overhang
Figure 5-3. Minimum Back of Cab Clearance
Body Mounting Using Brackets
Frame Sill
Brackets
Mounting Holes
Figure 5-4. Spacer between Frame Sill and Body Rail - Rubber or Plastic
Figure 5-6. Rubber Spacer between Brackets
Frame Drilling
Hole Location Guidelines
Body Mounting Using U-Bolts
Spacers
Figure 5-8. Crossmember-Gusset Hole Pattern Requirements. [Inch(MM)]
Figure 5-9. Acceptable U-Bolt Mounting with Wood and Fabricated Spacers
Figure 5-10. Clearance Space for Air Lines and Cables
Rear Body Mount
Figure 5-11 Example of Fishplate Bracket at Rear End of Body, Used with U-Bolts
SECTION 6 FRAME Modifications
Frame Modifications
Introduction
Drilling Rails
Location and Hole Pattern
Modifying Frame Length
Frame Insert
Figure 6-1. Detail of Frame
Changing Wheelbase
Crossmembers
Figure 6-3 Comparison of Original, Shortened, and Extended Wheelbases
Figure 6-4. Crossmember Added When Distance Exceeds 60 Inches (1524 MM)
Electrical Electrical
Introduction
Electrical Circuits
Capacity
ELECTRICAL Introduction
Dashboard Identification
Figure 7-1. Instrument Layout
Data Bus Communication
Figure 7-2. Data Bus Communication Architecture
Removal and Installation
Removal and Installation, Switches
Removal and Installation, Dashboard Panels
Table 7-1. Additional Spare Circuits for Wiring
Table A-1. Model Year (Code) Designations
Certification Labels
Components and Weights Label
Tire/Rim and Weight Rating Data Label
Incomplete Vehicle Certification Label
Figure A-2. Drivers Door and Door Frame Label
Component Identification
Engine Identification
Figure A-3. Engine Identification Location
Transmission Identification
Front Axle Identification
Rear Axle Identification
Figure A-4. Front Axle Identification
Figure A-5. Rear Axle Identification
APPENDIX A VEHICLE Identification
Vehicle Identification Number
VIN Location
Chassis Number Locations
Appendix B Weight Distribution
Introduction
Abbreviations
Calculations
Weight Distribution Without Body
Figure B-1. Balanced Load: Cgf 100 In. from Front Axle
CALCULATIONS Weight Distribution Without Body
Figure B-2. Unbalanced Load: Cgf 133 In. from Front Axle
Weight Distribution with Body
Chassis Weights
Table B-1. K270/K370 Single Rear Axle "Bare" Chassis Tare Weights (no Driver, no Fuel
Figure B-3. Balanced Body Unloaded: Cgf 184.7 In. (4691.45 MM) from Front Axle
Figure B-4. Liftgate Example: Cgf 322.2 in (8183.9 MM) from Front Axle
Complete (Loaded) Vehicle
Table B-2. K270 Weight Distribution and Chassis Rating Calculation
Weight Distribution Analysis
Body Length
Table B-3. Available K270/K370 Body Lengths
Index
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