Section III. REPAIR
PARTS, SPECIAL TOOLS AND EQUIPMENT
4-8. Tools and Equipment
Tools, equipment, and spare parts issued with or
Maintenance Repair Parts
authorized for the aircraft mounted insecticide sprayer
Repair parts and equipment covering Organizational
maintenance for the insecticide sprayer are listed and
illustrated in TM 5-3740-211-24P.
4-9. Special Tools and Equipment
No special tools or equipment are required for
Organizational maintenance of the insecticide
Section IV. PREVENTIVE
MAINTENANCE CHECKS AND SERVICES
minimum inspection requirements.
Organizational Maintenance Preventive
Insure that the aircraft-mounted insecticide sprayer is
ready for operation at all times. To do so you must
Maintenance Checks and Services
perform a systematic inspection so that defects may be
discovered and corrected before they result in serious
Table 4-2 lists Organizational maintenance level
damage or failure. Perform the necessary preventive
preventive maintenance checks and service functions.
maintenance checks and services described in 4-12.
The item numbers indicate the sequence of
Table 4-2. Organizational Preventive Maintenance Checks and Services
B - Before operation
M - Monthly
D - During operation
Item to be inspected
Tee boom strainer
Remove strainer; clean or replace, if required.
Hoses, couplings, tank
Clean parts; replace as necessary.
Pump brake cables and
Liquid loading system
Clean; replace if required.
Check blade angle and condition; service and
replace as necessary.
insecticide sprayer. The chart serves only as a guide,
is a tabulation
of troubleshooting steps
and does not mean that other troubles may not exist
assigned to Organizational maintenance level for the
Table 4-3. Organizational Troubleshooting Chart.
noticeably vibrate or misalign
Tank installation loose.
Secure all tank
b. Cable tension out of adjustment.
b. Adjust cable tension as required.
2. Leak develops in sprayer system.
Faulty fluid system components.
Repair or replace faulty components.
3. Use of pump causes.
Fan blade damaged.
Replace fan blade.
a. Loose connection on control valve.
a. Adjust and secure connectors.
4. No response to start spray command.
No response to stop spray command. Loose connection on control valve.
Adjust and secure connectors.
Brake cable or cable connector loose.
Adjust and secure cable.
a. Disassemble and clean nozzles.
b. Boom tee screen clogged.
b. Clean or replace screen.
Unable to adjust windmill blade pitch Internal mechanism damaged.
Replace hub assembly.
Incorrect pressure gage indication.
b. Pressure line loose or broken.
Repair or replace pressure line.