Table 1. Preventive Maintenance Checks and
Services (PMCS) for 613CS Scraper - Continued.
NOT FULLY MISSION
BE ALERT for personnel in the area while operating
machine. Always check to ensure area is clear of personnel
and obstructions before starting engine, moving machine or
lowering or raising scraper bowl. Failure to follow this
warning may result in serious injury or death to personnel or
damage to equipment.
If the tractor begins to move during service brake test,
reduce engine speed immediately and engage parking brake.
Perform the following service brake Machine moves with engine
RPM less than 1200 RPM.
(1) Ensure area around machine is
clear of all personnel and obsta-
(2) Test brakes on dry level surface.
(3) Fasten seat belt before testing
(4) Ensure air system is at operat-
ing pressure of 125 +/- 10 psi
(862 +/- 69 kPa).
(5) Raise bowl.
(6) Apply service brakes
release parking brake.
(7) With engine at idle with service
brakes applied, move transmis-
sion control lever to forward
speed position 2.
(8) Gradually increase engine
RPM. Service brakes should
prevent machine movement
with engine running at 1200 +/-