TeeJet 744E SPRAYER CONTROL - Manual (Page 14)

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744E Sprayer Control
CHAPTER 3 - MAINTENANCE
Routine Procedures
Several routine procedures should be followed to help
maintain the 744E Sprayer Control system.
1. Check all wires and connections for wear, damage
and frayed ends to prevent shorting out of the
system.
2. Make sure that the mounting bracket for the 744E
Sprayer Control is mounted securely.
3. All connections and terminals should be free of
corrosion.
4. The control unit is designed so that it may be
removed, cleaned and stored during periods of
non-use to protect it from extreme heat or cold.
5. The 744E Sprayer Control is NOT WATERPROOF.
Do not immerse the unit when cleaning.
6. Periodic flushing of the sprayer will help prevent
clogging due to residue buildup.
Removal of Control Unit
1. De-pressurize the system.
2. Uncouple the nylon pressure tube from outside
the vehicle cab and allow the liquid to drain.
Uncouple the tube from the bottom of the unit.
3. Disconnect the input power cable from the back
of the unit.
4. Disconnect the output control cable from the back
of the unit.
5. Loosen the triangular knobs on both sides of the
unit and slide the unit off of the bracket.