THRUSH AIRCRAFT, INC – MODEL S2R-R1340
AIRCRAFT MAINTENANCE MANUAL
9-6
Effective: 01/01/08
B. Inspect hopper lid for condition of
seal and security of latches.
C. Inspect the hopper for indications of
leaks and general condition.
D. Inspect hopper gate for evidence of
leaks and proper operation.
E. Inspect hopper vent tube for
evidence of corrosion and security.
F. Inspect emergency and 3-way valve
handle and control rods for cracks
around welds. Check condition of
control rod boot.
G. Inspect liquid lines for leaks and
hose deterioration.
H. Inspect all line supports and clamps
for security or corrosion.
I.
Drain and clean spray strainer.
J. Inspect the pump, fan and brake
assemblies for security and proper
operation.
K. Refer to manufacturer's data for
pump lubrication.
L. Inspect
emergency on/off control and
valve for security and proper
operation.
M. Inspect 3-way pressure control valve
for security and proper operation.
N. Inspect both booms and the support
for each boom for security and
evidence of corrosion.
O. Inspect all nozzle diaphragms for
deterioration.
P. Inspect all fan blades for cracks or
nicks.
Q. Inspect all nozzles for orifice erosion.
Replace as necessary.
Figure 9-4: Standard Spray Dispersal System
AGITATOR AND SPREADER
Ref. Figure 9-5
A number of dry chemical/seed
spreaders are available as options on the
S2R-R1340. Factory installation
includes airframe attachment hard
points. Operation and maintenance of
the spreader should be done according
to the manufacturer’s instructions.
General maintenance guidance is
included below.
A. Inspect spreader attachment to the
airframe for condition and security.
Ensure that spreader is level when
aircraft is in flight attitude.
B. Inspect gearbox for proper oil level
(refer to manufacturer's data).
C. Inspect fan, gearbox, drive shaft,
agitator and coupling for security and
proper operation.
D. Inspect agitator shaft seal at hopper
for evidence of leaks.
E. Inspect spreader unit for cracks,
loose rivets, and loose or missing
vanes.
