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TM5-4210-229-14&P
Table 4-4. Organizational Troubleshooting Chart
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
AUXILIARY FIREFIGHTING EQUIPMENT
1. HYDRAULIC RESCUE TOOL OPERATES ERRATICALLY.
Step 1. Check if hydraulic fluid is low.
Add fluid (paragraph 4-19).
Step 2. Check for air in hydraulic system.
Cycle tool full open to full closed several times (paragraph 2-16).
2. HYDRAULIC RESCUE TOOL HAS LOSS OF POWER.
Step 1. Check for leak in valve seals.
Refer to next higher level of maintenance for repair.
Step 2. Check for piston failure.
Refer to next higher level of maintenance for repair.
3. HYDRAULIC RESCUE TOOL FAILS TO OPERATE.
Check for coupling failure.
Replace coupling (paragraph 4-19).
4. HYDRAULIC RESCUE TOOL OPERATES IN REVERSE.
Check for reversed hoses on power supply.
Reverse hoses (paragraph 2-16).
5. POWER UNIT WILL NOT START.
Step 1. Check if fuel is low.
Add fuel paragraph 4-19).
Step 2. Check if throttle is not in the choke position.
Move throttle to choke position.
6. POWER UNIT MISSES UNDER LOAD.
Check for fouled or cracked spark plug.
Replace spark plug (paragraph 4-19).
7. POWER UNIT LACKS POWER.
Check for partially closed choke.
Adjust throttle control.
8. POWER UNIT DOES NOT RUN TOOL.
Check for dump valve in DUMP position.
Switch lever to PRESSURE position.
TWIN AGENT FIREFIGHTING SYSTEM
9. HIGH PRESSURE GAUGE INDICATES LOSS OF PRESSURE.
Check for manifold leak.
Tighten connections as required.
4-19
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