TROUBLESHOOTING - Continued
TM 9-2350-267-10
MALFUNCTION
TEST OR lNSPECTlON
CORRECTIVE ACTION
23.
24.
25.
AUXILIARY POWER UNIT ENGINE - Continued
APU ENGINE MISFIRES
Step 1.
Step 2.
Check air intake filter.
Clean or replace filter element (p 3-47).
Check for contaminants in fuel filters.
Drain filters (p 3-47).
APU ENGINE LACKS POWER
Step 1.
Step 2.
Check air intake passage for obstruction.
Remove obstruction.
Check for contaminants in fuel filters.
Drain filters (p 3-47).
HYDRAULIC SYSTEM
NO RESPONSE TO ANY CONTROL
Step 1.
Step 2.
Step 3.
Check hydraulic fluid supply (LO 9-2350-267-12).
Fill resrvoir.
Check that ball valve in suction line is open.
Open valve.
Backup hydraulic system does not operate.
Notify Organizational Maintenance.
3-13
