5
MS-40/MS-50 B
ACKPACK
S
PRAYER
O
PERATOR
'
S
M
ANUAL
A
SSEMBLY
AND
M
AINTENANCE
1.
Remove all contents from box.
IMPORTANT
Lubricate felt washer assembly, gasket inside cap, and check valve
before initial use, and after each use.
2.
Unscrew tank cap and remove strainer. Apply a coating of 5 or 10
weight oil to the tank cap O-ring and check valve.
3.
With tank cap removed, disconnect the agitator (F) from the pump
module (D) inside the tank.
4.
Unscrew pump module cap (A) from the top of the tank.
5.
Lift pump module/cap out of tank.
6.
Slide cap off pump assembly. - Fig. 1
7.
Remove felt washer (B) from cap, and liberally oil by dipping in 5
or 10 weight oil. - Fig. 1
8.
Reassemble felt washer to inside of cap, and reinstall on tank.
When first contact of felt is made with tank lip, tighten one
additional half turn. Do not completely tighten at this time.
9.
Install pump module into tank through pump module cap assem-
bly, and tighten cap securely.
10.
Snap agitator into pump module groove, with paddle up.
11.
Locate the pump lever (C) - Fig. 2 There are two (2) bends on one
end of the pump lever. This end is installed on the pump module.
- Fig. 3
12 .
Place one small washer on pump lever before installing on pump
module.
13.
Insert pump lever through opening on top of pump module.
14 .
Place second small washer on pump lever and secure lever
assembly with snap pin.
15 .
Insert pump handle through hole at base of the sprayer on pump
module side. Before installing handle completely, insert pump
lever (C) into bracket on pump handle (E). - Fig. 4
16.
Insert pump handle completely. Install small washer and snap pin
to secure pump handle to pump lever.
17.
Install large washer and snap pin to secure the pump handle at the
base. (The pump handle assembly is now complete.)
18.
Hook the plastic clips attached to the shoulder straps into the
openings at the base of the unit.
19 .
Attach spray wand to spray gun and firmly tighten.
B
A
C
D
E
F
C
Fig. 1
Fig. 2
Fig. 3
Fig. 4
E
C
