Manual

23
770 Off-Highway Truck specifications
ROPS
ROPS/FOPS Standards
• ROPS (Rollover Protective Structure) for cab offered
by Caterpillar meets ISO 3471:1994 ROPS criteria.
• FOPS (Falling Objects Protective Structure) meets
ISO 3449:1992 Level II FOPS criteria.
Sound
Sound Standards
• The operator sound pressure level measured according to
work cycle procedures specified in ANSI/SAE J919 APR95
is 79 dB(A) for cab offered by Caterpillar, when properly
installed and maintained and tested with doors and windows
closed, engine speed at high idle, and fan at medium settings.
• The exterior sound pressure level for the standard machine
measured at a distance of 15 m (49 ft) according to the test
procedures specified in SAE J88 APR95, mid-gear moving
operation is 84 dB(A).
• Hearing protection may be needed when operating with an
open operator station and cab (when not properly maintained
or doors/windows open) for extended periods or in a noisy
environment.
Steering
Steering Standards ISO 5010:1992
Steer Angle 40º
• Target Gross Machine Operating Weight is 71 214 kg
(157,000 lb).
• Turning circle as measured from the outside of the tire is
18.1 m (59.4 ft).
Weight Distributions – Approximate
Front Axle – Empty 48%
Front Axle – Loaded 34%
Rear Axle – Empty 52%
Rear Axle – Loaded 66%
Suspension
Effective Cylinder Stroke – Front 234 mm 9.2 in
Effective Cylinder Stroke – Rear 149 mm 5.9 in
Rear Axle Oscillation 8.9º
Service Refill Capacities
Fuel Tank 530 L 140 gal
Cooling System 114 L 30 gal
Crankcase 34 L 9 gal
Differentials and Final Drives 159 L 42 gal
Steering Tank 34 L 9 gal
Steering System (Includes Tank) 56 L 15 gal
Brake/Hoist/Fan Hydraulic Tank 155 L 35 gal
Brake/Hoist/Fan System (Tank) 277 L 73 gal
Transmission/Torque 53 L 14 gal
Converter Sump
Transmission/Torque Converter 95 L 25 gal
System (Includes Sump)
Tires
Standard Tire 18.00R33 (E4)
• Productive capabilites of the 770 truck are such that, under
certain job conditions, TKPH (TMPH) capabilities of standard
or optional tires could be exceeded and, therefore, limit
production.
• Caterpillar recommends the customer evaluate all job
conditions and consult the tire manufacturer for proper
tire selection.