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MAINTENANCE
Crusader
MC-8
[ .. c,~3-~26 _ _ _ DATE--=Jc..=....:.ul.L.Ly,___:_19.:...:...73.::;____]
MANUAL
3
5
6
7
27
25
I
24
23
1.
Body Assy • - R • H •
15.
Secondary Rod
29.
Allen Screw
Back-up Washer
2.
Spring
16.
Primary Rod
30.
3.
Bearing Block
17.
Rubber Disc.
31.
Rear Bearing
5.
Reverser Stop
18.
Gasket
32.
Gear Sleeve Assy.
6.
Reverser Tee
19.
Screw
33.
Front Bearing
7.
Reverser Rod
20.
Screw
34.
Transmission Shaft
11.
Piston Retainer
23.
Screw
35.
Gear Rack
12.
Parking End Plate R.H.
24.
Screw
38.
11
0
11
Ring
13.
11
0
11
Rings
25.
Body Assy. - L.H.
39.
Screw
14.
Valve Pin
27.
Screw
Figure 3-19: Windshield Wiper Motor
DISASSEMBLY
The motor consists of four sub-assemblies; the
,alve, the body (two halves), the piston, and the shaft
tnd gear assembly. Sub-assemblies may be replaced
1s complete units, or they may be disassembled and
·epaired.
. To disassemble the wiper motor, proceed as
_ollows: Re~ove valve a_ssembly by unscrewing the
our mountn~g screws; hft off carefully with body
:eals. Place right half of body in a vise so that joining
:crew heads are up. Tighten vise only enough to hold.
Jnsc~ew and remove the two body joining screws.
-Ioldmg the output shaft with one hand, gently lift off
1pper body half. Note position of marks on gear and
·ods_ and remove shaft and gear assembly. Remove
>eanng block. Note position of valve reverser in
>0dy slot, and remove piston assembly.
To reassemble, reverse the above drocedure
naking sure to replace valve reverser an
shaft and
;ear assembly in the same position as when disassem-
>led.
REPAIR
To repair valve, remove end plates from both ends
of the valve. Rubber discs are cemented in place and
should
not be removed unless replacement is
necessary. (Pick out with a knife and scrape clean;
cement new discs in place with a good rubber
cement). Unscrew valve pin projecting from body
side and push out valve rods. Remove "O" rings from
both valve rods. Clean all parts except "O" rings in a
good grade of solvent. Wipe "O" rings with a clean
cloth. Replace worn or defective parts. The use of
new gaskets and "O" rings is always recommended.
Reassembly is the reverse of the above procedure.
Valve rods should be coated with "Air Push" grease.
End plates should be sealed with gasket sealer.
Body halves cannot be further dismantled. Either
half can be replaced. Before reassembly all parts
should be coated with "Air Push" grease. The bearing
block should be soaked in light oil for 24 hours.
To disassemble piston, remove "O" rings and "O"
ring adaptors. Insert knife in recessed holes and
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