SECTION 00: GENERAL INFORMATION
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
CONTENTS
SECTION CHANGE LOG ........................................................................................................................................... 2
1. FOREWORD .................................................................................................................................................... 3
2. SCHEMATICS .................................................................................................................................................. 3
3. SAFETY NOTICE............................................................................................................................................... 3
3.1 DATA PLATES AND CERTIFICATIONS...............................................................................................................4
3.1.1 Engine ....................................................................................................................................................4
3.1.2 Transmission ..........................................................................................................................................4
3.1.3 Drive Axle ...............................................................................................................................................4
3.1.4 Front Axles .............................................................................................................................................4
3.1.5 Power Steering Pump.............................................................................................................................4
3.1.6 Coach Final Record.................................................................................................................................5
3.1.7 Safety Certification.................................................................................................................................5
3.1.8 DOT Certification Label ..........................................................................................................................5
3.1.9 Fuel Tank Label ......................................................................................................................................5
3.1.10 EPA Engine Label....................................................................................................................................5
3.1.11 Vehicle Identification Number (VIN) ......................................................................................................5
4. FASTENER....................................................................................................................................................... 8
4.1 FASTENER STRENGTH IDENTIFICATION..........................................................................................................8
4.2 STANDARD TORQUE SPECIFICATIONS ............................................................................................................9
4.2.1 SAE .........................................................................................................................................................9
4.2.2 Metric...................................................................................................................................................11
4.3 SELF-LOCKING FASTENERS ..................................................................................................................................13
4.4 RECOMMENDATIONS FOR REUSE .........................................................................................................................13
4.5 SIX LOBBED SOCKET HEAD .................................................................................................................................14
4.6 HOSE CLAMP TORQUE ........................................................................................................................................17
5. WELDING PROCESS....................................................................................................................................... 18
5.1 STEEL –STEEL WELDING...............................................................................................................................18
5.2 STEEL WITH STAINLESS OR STAINLESS WITH STAINLESS WELDING ..................................................................18
5.3 STEEL -STAINLESS STEEL WELDING ..............................................................................................................19
