0124
TM 1-1740-221-13&P&P
THROTTLE SYSTEM - (CONTINUED)
5.
Inspect throttle slave cylinder (Figure 1, Item 3) and spring for security. Inspect hose and cylinder for
clearance and chafing during operation. Inspect hose connection and itting for leaks.
END OF TASK
BLEEDING THE THROTTLE SYSTEM
WARNING
The use of Personal Protective Equipment (PPE) is required when using or handling hazardous
materials associated with operating and maintaining equipment (jet fuel, hydraulic luid, brake
luid, ethylene glycol, cleaning solvents, compressed air, and engine/axle oil). Failure to use
PPE when handling these materials could result in injury or death.
Remove reservoir cap (WP 0019) and inspect reservoir luid level. Add hydraulic luid as
required. After throttle system component replacement, bleeding is required. Make sure that
reservoir luid level is properly maintained during and after bleeding process.
Before servicing throttle system components, make sure that the machine is on level ground.
Set the parking brake. Put chocks on each side of all four wheels. Disconnect the battery so
that the engine cannot be started. If you do not take these precautions, the machine could run
you over.
NOTE
Throttle system bleeding starts at the throttle master cylinder and ends at the slave cylinder.
1.
Verify throttle reservoir (Figure 1, Item 1) is full (WP 0019).
2.
At master cylinder (Figure 1, Item 5), connect bleed hose to bleeder valve (Figure 1, Item 6) and put other
end in container.
CAUTION
When bleeder valve is opened, pedal will move and push air/luid out of bleeder valve. Do not
release foot pressure on pedal until the bleeder valve is closed.
3.
Apply foot pressure on pedal (Figure 1, Item 4) and open master cylinder bleeder valve (Figure 1, Item 6)
vent air. Close bleeder valve and release foot pressure. Repeat procedure until no air is present.
4. Add hydraulic luid to reservoir (Figure 1, Item 1) as required.
5. At slave cylinder (Figure 1, Item 3), connect bleed hose to bleeder valve (Figure 1, Item 2) and put other
end in container.
6. Apply foot pressure on pedal (Figure 1, Item 4) and open slave cylinder bleeder valve (Figure 1, Item 2) to
vent any air. Close bleeder valve and release foot pressure. Repeat procedure until all air is removed.
7. Add hydraulic luid to reservoir (Figure 1, Item 1) as required.
9. Perform Maintenance Operation Check.
END OF TASK
END OF WORK PACKAGE
01242