Wiper Motor Windshield Frame Mount
Marinco-500
Installation Instructions

Wiper Motor Windshield Frame Mount
Marinco-500
Tools (Not Included):
••
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••••
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Phillips head screwdriver
17 mm or small adjustable wrench
Small flat blade screwdriver
3 Amp fuse and fuse carrier#8 self-tapping screw (1)On/Off Switch (if new installation]
Drill
16 gauge stranded wire
9/16” drill bit
3/16” female Quick-connect tabs (2-3)
9/64” drill bit
Crimping/Cutting pliers

Please read through all instructions prior to assembly2

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Installation Instructions

Installation:
Note: This wiper motor is intended for use with wiper arm/blade combinations nolarger than 14” x 14”.
1) This wiper motor can be mounted above or below the windshield Make surethat the installation location you have selected will provide ample clearance
for the sweep of the wiper blade and arm. For optimum performance, mountthe wiper motor shaft at a 90° angle to the windshield. This will minimize
strain on the wiper motor.
2) Drill the shaft mounting hole in the location you have selected Use a 9/16”
drill for the 1/2” diameter shaft.
3) Remove the knurled retainer ring, stainless steel nut and washer and one of
the three rubber grommets from the shaft. Mount the motor in the windshieldframe with two of the grommets on the inside of the frame. Place the third
grommet over the shaft on the outside of the frame followed by the washerand nut. Use a 17 mm or small adjustable wrench to tighten the nut snugly.
Do not over-tighten. Install the knurled retainer ring. Be sure the rubber
grommets are on both sides of the frame.
4) Mark the desired hole position of the anti-rotation bracket and drill a 9/64”
hole. Use a #8 self-tapping screw (not provided) to attach to most aluminumframes.

Stainless Steel Washer

One Rubber Grommet

Stainless Steel Nut

Aluminum Windshield Frame

Knurled Retainer Ring

Rubber Windshield Channel
Anti-Rotation Bracket
Two Rubber Grommets

Shaft
90°
Drill 9/16” HoleWindshield Glass

Motor Housing
Motor Face Plate

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Wiper Motor Windshield Frame Mount
Marinco-500
Wiring:This motor has three connections. Negative (-). positive (+). and switch (S)marked on the side of the motor housing. Use black or yellow wire for thenegative connection. Blue wire for the positive connection and red wire for theswitch connection. 16 gauge stranded wire is recommended. This motor can be
wired for regular operation or self-parking operation. Refer to the wiring diagramfor proper installation. We strongly recommend that a 3 amp fuse be used toInsure safe and reliable operation.

Wiper MotorFemale
Quick-Connect
Tabs (2)3 AMP Fuse
Wiper Switch“+” Terminal
Not Used

NegativeWire (Blackor Yellow)

Positive Wire(RED)

Wiring Diagram forRegular Operation

FemaleQuick-Connect
Tabs (3)WiperSwitch

Wiper Motor

3 AMP
Fuse

Red WireBlue Wire
Negative
Wire (Blackor Yellow)

Wiring Diagram for
Self-Parking Operation

4

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Positive Wire(RED)Installation Instructions

Housing Screw (2)Changing the Park Position
1) Use a Phillips head screwdriver to remove the 4motor housing screws located at the corners of
the wiper motor face plate. Be careful not to lose
any of the motor housing screw sealing a-rings.
Pull off the motor housing.
2) Use a small flat blade screwdriver to carefullyremove the o-ring and white nylon cam from thegear shaft. Rotate the white cam 180° from theoriginal position and reinstall it back onto the gearshaft. Be sure that the cam is pushed all the way
back onto the gear shaft and the o-ring is properly
seated in place.

Housing Screw (2)Gear Shaft

WhiteNylon Cam
White Nylon Cam
rotated 180°

Rubber O-Ring3) Re-install the motor housing back onto the motor. Replace the 4 Phillips headmotor housing screws and housing screw sealing a-rings. Do not over-tighten
the screws.

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5Wiper Motor Windshield Frame Mount
Marinco-500
Changing The Wiping Angle:

Housing Screws (2)1) Use a Phillips head screwdriver to remove
the 4 wiper motor housing screws anda-ring seals. Pull off the motor housing.
2) Remove the 4 motor screws and separate
the face plate from the motor by pullingstraight up on the wiper motor shaft. Be
careful not to lose the sealing o-rings on
the motor and housing screws.
3) Use a Phillips head screwdriver to remove
the position screw from the transmission
arm plate. Be careful not to lose theposition screw bushing and washers.
Sweep Angle Plate

110° Sweep
Angle Hole80° Sweep
Angle Hole

Hole for Motor
Shaft Plate Pin

www.marinco.com|Housing Screws (2)Transmission
Arm Plate in
110° Hole

Transmission
Arm Plate in
80° Hole

Position Screw
With Washersand Bushing4) Relocate the transmission arm plate to thedesired sweep angle hole on the roundsweep angle plate. The sweep angles
are stamped onto the sweep angle plate.
Re-install the transmission arm plate on
to the sweep angle plate with the position
screw. Be sure the position screw bushingis installed inside the transmission arm
plate and washers are on both sides of thetransmission arm plate. Do not over-tighten
the position screw.
5) Insert the wiper motor shaft plate pin backinto the hole on the end of the transmission
arm plate, It may be necessary to rotate themotor shaft to get the pin to properly alignin the transmission arm plate.
6) Re-attach the wiper motor face plate to themotor body with the 4 Phillips head motor
screws and sealing a-rings. Re-install themotor housing onto the face plate with the4 Phillips head housing screws and sealingo-rlngs. Do not over-tighten the screws.
6Motor Screws (4)800.307.6702

Position Screw
With Washers
and Busing

MotorShaft

FacePlate

Motor Shaft
Plate Pin (insert
through hole inTransmission
Arm Plate)

Cut Awayto show
DetailInstallation Instructions

Note: After changing the wiping angle, the wiper motor parking position willautomatically change to the opposite Side. If necessary, readjust the parking
position as described In the “Changing Parking Position” instructions.

Troubleshooting:If motor does not operate, double check wiring connections and 3A fuse.

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Warranty information: www.marinco.com/limited-warranty

www.marinco.com | 800.307.6702
12/2012								 20199