Raven Hawkeye - 1. Loosen the fly nut (item 1) and remove the Hawkeye nozzle control valve from the nozzle body.; 2. Inspect the large o-ring (item 6) on the face of the valve body (item 4). Replace if necessary.; 3. Inspect the small o-ring (item 5) on the tip of the valve body. Replace if necessary.; 4. Using a valve body removal tool (P;N 321-0000-457), loosen and remove the valve body (item 4) from the Hawkeye nozzle control valve.

P/N 016-0171-584 Rev. D 95
should be performed on the nozzle control system or on individual nozzles if leaks are observed at a specific
spray tip.
FIGURE 2. Nozzle Control Valve Maintenance Detail
1. Loosen the fly nut (item 1) and remove the Hawkeye nozzle control valve from the nozzle body.
2. Inspect the large o-ring (item 6) on the face of the valve body (item 4). Replace if necessary.
3. Inspect the small o-ring (item 5) on the tip of the valve body. Replace if necessary.
4. Using a valve body removal tool (P/N 321-0000-457), loosen and remove the valve body (item 4) from the
Hawkeye nozzle control valve.
FIGURE 3. Hawkeye Nozzle Control Valve Exploded View
5. Inspect the o-ring (item 3) on the inside of the valve body. Replace if necessary.
6. Clean and inspect the plunger assembly (item 2). Replace the plunger assembly if the rubber seal is worn or
damaged. Refer to Figure 4 on page 96 for reference to plunger seal condition.
7. Inspect fly nut (item 1). Replace if worn or damaged.
1
5
6
Hawkeye
Nozzle
Control Valve
4
b
Valve
Body
Tool
1
2
3
4
b
5
6
Hawkeye
Nozzle
Control Valve