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TROUBLESHOOTING PROCEDURES
TROUBLESHOOTING PROCEDURES - Continued

Scraper, Earth Moving, Motorized, Diesel Engine Driven Model 621B
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TM 5-3805-248-10
TROUBLESHOOTING PROCEDURES - CONTINUED
0012 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AIR SYSTEM AND BRAKES - CONTINUED
WARNING
Park machine on level ground, stop engine, and lower bowl to prevent injury to operator and/or severe
damage to machine.
1.
Check for mud or dirt under brake
Clean mud or dirt from under brake pedal.
4.
Service Brakes Do Not
If problem still exists, go to test step 2.
pedal.
Operate Correctly.
2.
Check air hoses for loose connections.
Tighten air hoses, if required. If problem
still exists, go to test step 3.
3.
Check for air oil leaks or damage to
If problem still exists, notify Unit
Maintenance.
brake system components.
WARNING
Park machine on level ground, stop engine, and lower bowl to prevent injury to operator and/or severe
damage to machine.
1.
Check for mud or dirt under brake
Clean mud or dirt from under brake pedal.
5.
Service Brakes Do Not
pedal.
If problem still exists, go to test step 2.
Release Correctly.
2.
Check air hoses for loose connections.
Tighten air hoses if required. If problem
still exists, go to test step 3.
3.
Check for air leaks or damage to brake
If problem still exists, notify Unit
system components.
Maintenance.
0012 00-2


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