section IV covers direct support/general support level
11-2.
Scope
maintenance.
Note:
This chapter provides separate sections covering
Operating instructions for the liquid
maintenance activities or the liquid loading system.
loading system are included with
Section I provides introduction, description and data, and
operating instructions for the insecticide
scope; section II covers operator's maintenance; section
sprayer system (ch. 2).
III covers organizational level maintenance; and
Section II. OPERATOR'S MAINTENANCE INSTRUCTIONS
is ready for use at all times. Inspect the equipment
11-3.
General
thoroughly so that defects may be found and fixed before
they result in serious damage or failure. Perform
a. Basic Issue Items. Tools, equipment, and
necessary preventive maintenance checks and services
repair parts issued with or authorized for the liquid
listed in step b, following. Item numbers indicate the
loading system are listed in the basic issue items list,
sequence of minimum inspection requirements. Record
any defects noted during use of the equipment for repair
b. Repair Parts and Special Tools List. Refer to
to be made as soon as possible. Stop pump right away
Repair Parts and Special Tools List Manual, TM 5-3740-
if a trouble is noted during pumping which would damage
211-24P, for a complete listing and illustrations of repair
the equipment if pumping were continued.
parts and special tools used in conjunction with the
b. Operator's Preventive Maintenance Checks
aircraft-mounted insecticide sprayer.
c. Lubrication Instructions.
maintenance checks and services.
closed containers and store in a clean, dry place away
list of the operator's troubleshooting tasks for the liquid
from external heat. Allow no dust, dirt, or other foreign
loading system. The chart serves only as a guide and
material to mix with the lubricants. Keep all lubrication
does not mean that other troubles may not exist.
equipment clean and ready to use.
Troubles beyond the scope of the operator/crew are
(2) Cleaning. Keep all external parts not
contained in tables 11-4 and 11-7.
requiring lubrication clean of lubricants and dirt.
(3) Liquid loading system engine. Lubrication
11-5.
Maintenance of Liquid Loading System
of the liquid loading system engine is accomplished
through the addition of oil into the gasoline supply (para
a. General. Instructions in this paragraph are
(4) Liquid loading system pump. Lubrication
published to inform and guide the operator in maintaining
of the liquid loading system pump is accomplished by the
the liquid loading system.
b. Air Cleaner Element Service.
fluid being pumped (para 21, step b (5).
(1) Clean the air cleaner element (3, fig. 11-
19) as often as necessary to maintain engine power.
11-4.
Preventive
Maintenance
Checks
and
Under very dusty operating conditions, the air cleaner
Services
element may require weekly or even daily cleanings.
Never operate the engine without the air cleaner
a.
General. Insure that the liquid loading system
element.
Table 11-1. Operator's Preventive Maintenance Checks and Services.
Interval
B - Before operation
A - After operation
Item
Daily
D - During operation
50 - After 50 hours operation
No.
100 - After 100 hours operation
B
D
A
50
100
Item to be inspected
Procedure
01
X
Engine
Inspect for condition
02
X
Air cleaner element
Remove and clean
11-5, step b
03
X
Air cleaner element
Replace
11-5, step b
04
X
X
X
Fuel lines
Check for damage
11-5, step c
05
X
X
X
Fuel level
Keep tank full
11-5, step d
06
X
Pump assembly strainer
Clean and decontaminate
07
X
Pump assembly strainer
Remove and clean
11-5
