TM 5-4610-223-12
(4)
Lift chemical solution feeder assembly from mounting shelf (6).
b.
Replace. Replace a defective chemical solution feeder assembly.
c.
Installation.
(1)
Position chemical solution feeder on mounting shelf (6, fig. 3-22) and secure with washers, nuts, and
screws (5).
(2)
Secure discharge and suction tubes (3 and 4) to solution feeder with clamps (2).
(3)
Connect cable plug connector (1) to receptacle on side of chemical solution feeder.
(4) Start and stop the chemical solution feeder several times to make sure that operation is satisfactory.
4-73.1. CHEMICAL SOLUTION FEEDER ASSEMBLY (Raider Model Only).
a.
General. The chemical solution feeder assembly consists of two diaphragm pumps and attaching hoses. Both
pumps are powered by a single electric motor that transmits power through a worm gear on the motor output shaft to the
internal drive shaft assembly. Built onto the drive shaft is a set of eccentric lobes that impart the reciprocating motion
required to operate the diaphragm pumps. Rotating the control knobs increases or decreases the stroke (output) of the
respective diaphragm pump. Both diaphragm pumps can be adjusted individually without stopping the unit.
b.
Removal.
(1)
Disconnect electrical cable (4, fig. 4-53.1) from motor junction box (3).
(a)
Remove two screws (10) from face of motor junction box. Slide cover (11) off.
(b)
Disconnect two feeder power leads (12) from two supply power leads (13).
(c)
Disconnect ground wire (16) by removing screw and washer assembly (14) and nut (15).
(d)
Pull electrical cable (4) out.
(2)
Loosen four clamps (2) by loosening screws and disconnect plastic hoses (1) from chemical solution feeder
assembly (9).
(3)
Remove four nuts (5), four screws (7) and four stanchions (6).
(4)
Remove chemical solution feeder (9) from baseplate (8).
c.
Cleaning and Inspection.
WARNING
Dry cleaning solvent, P-D-680, used to clean parts is potentially dangerous to personnel and property.
Avoid repeated and prolonged skin contact. Do not use near open flame or excessive heat. Flat
point of solvent is 100 degrees F 130 degrees F (38 degrees C - 59 degrees C).
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