Toro 640 User Manual

Page 4

Reinstalling Nozzle/Drive Assembly

1. Part Circle Only: Holding drive assembly stationary, slowly rotate nozzle assembly counterclockwise to left side of arc pattern

(see Figure 6).

2. Check drive assembly key tab for approximately 30° upward bend, adjust if necessary (see Figure 7).

3. Insert nozzle/drive assembly into body until seal is approximately one (1) inch below top of body.

Part Circle Only: Align main nozzle orifice with left edge of watering arc before inserting (see Figure 8).

4. Place nozzle retainer over nozzle assembly aligning keyway and drive assembly key (see Figure 9).

5. Rotate nozzle retainer, interlocked

with nozzle/drive assembly, to align
the nearest of six (6) alignment slots
with tabs on body (see Figure 10).

6. Press retainer into body to interlock

alignment slot and body tab.

7. Install riser seal over nozzle

assembly placing peg into retainer
keyway (see Figure 11).

8. Install cap and secure with set

screw.

9. Check watering arc. If minor

adjustments are required (1/6 of a
turn or less); rotate sprinkler body
on riser. Do not make adjustments
by turning nozzle assembly (see
CAUTION below).

CAUTION

Rotating nozzle assembly to
make watering arc adjustments
may cause severe internal
damage to drive assembly.

Note: Refer to Illustrated Parts
Breakout Book Form No. 368-0044
for current parts listing.

Irrigation Division • An ISO 9001-Certified Facility

PRINTING DATE

P.O. Box 489 • Riverside, CA 92502

PART NO.

FEBRUARY 1998 REV. E

Printed in U.S.A.

362-0052

FIGURE 6

FIGURE 7

FIGURE 9

FIGURE 10

FIGURE 11

FIGURE 8

Rotate

Counterclockwise

Drive

Assembly Key

Nozzle Retainer

Keyway

(Shaded Area)

Nozzle Retainer

Keyway

Body

Tab

Alignment Slots

Riser

Seal Peg

Nozzle

Retainer

Keyway

Drive

Assembly

Key