TeeJet 744A Sprayer Control - Manual (Page 13)

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10
744A Sprayer Control
CHAPTER 3 - MAINTENANCE
Routine Procedures
Several routine procedures should be followed to
help maintain the 744A 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
744A 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 744A 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.