Sound Information and Vibration Information
The operator sound pressure level for an enclosed cab is 80 dB(A) measured according to the test procedures and conditions specified in "ISO 6394" or "98/37/EC".
The hands and arms are exposed to a weighted root mean square acceleration that is less than 2.5 m/s2.
The whole body is exposed to a maximum weighted root mean square acceleration of 1.0 m/s2.
Measurements are obtained on a representative machine using the procedures in the following standards:
- "ISO 2631/1"
- "ISO 5349"
Caterpillar Information System:
2002/11/04 Correction to the Operation and Maintenance Manual, "Wheel Bearings - Check/Adjust" {4050}
AD55 Underground Articulated Truck Power Train Pressure Control Valve (Transmission)
AD55 Underground Articulated Truck Parking
D6N Track-Type Tractor Operation Information
D5N Track-Type Tractor Specifications
621G Wheel Tractor-Scraper Engine Starting with Auxiliary Start Receptacle
3516B Engine for Caterpillar Built Machines Electronic Display Module
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System Bowl - Calibrate
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System Apron Control (Joystick) - Calibrate
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System Ejector Control (Joystick) - Calibrate
2002/10/07 Correction to Specifications , "Cushion-Hitch Pump and Mounting" {5070, 5316}
2002/10/07 Correction to Service Manual , "Transmission Clutch Running Clearance" {3155}
621G, 623G and 627G Wheel Tractor-Scrapers Air System and Brakes Brake Actuator
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System Ejector - Calibrate
621G Wheel Tractor-Scraper Braking System - Test
651E and 657E Wheel Tractor-Scrapers Hydraulic System Accumulator (Cushion-Hitch)
621G, 623G and 627G Wheel Tractor-Scrapers Air System and Brakes Service Brake
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System Apron - Calibrate
637G Wheel Tractor-Scraper Engine Air Filter Service Indicator - Inspect/Replace
637G Wheel Tractor-Scraper Engine Crankcase Breather - Clean
637G Wheel Tractor-Scraper Engine Oil (High Speed) and Oil Filter - Change
2002/10/07 Correction to Specifications , "Draft Frame" {6207}
621G, 623G, 627G, 631G, 637G, and 657G Wheel Tractor-Scrapers Power Train Electronic Control System General Information
623G Wheel Tractor-Scraper Safety Messages