chanical problems related to the Lift (Motor)
Assembly. There are a few preventative measures
you can take to ensure proper operation of the Lift
(Motor) Assembly explained below in
Solution:
.
Solution:
1. During Shipping, sometimes the Spring (B) will
pop-off the Link (A) of the Lift (Motor) Assy. Before
operation, simply look at the spring and make sure
the spring-ends (the "hooks") are parallel on both
sides, then reinstall the spring firmly to the pem-
studs, thus securing the link. If the spring is not
properly seated, or one end is excessively bent, the
spring can pop-off. The Link (A) will then fall off, thus operation of the Lift Plate & Cycle Assy. will not move up & down.
2. The elongated end of the Link (A) should be bent ever-so-slightly away from the rotating Cam (C) so as not to bind up.
3. Ensure the Set Screw (D) is firmly secured tightly through the Cam (C) to the Motor Shaft on the FLAT CUT SIDE.
4. The switches are supposed to be set so the cam can stop on the Up-Switch (#35) and the Down-Switch (#36). If the
rotating Cam (C) doesnt seem to move, you must enter Portals Diagnostics (Harley-Davidson Specific Test), in the
Service Game Manual Front Inside Cover and repeated on Page 24 and check for proper operation of the Motor &
Switches. (See the Test Procedure on Page 2).
5. We have also seen where the Motor Cam (C) catches on the motor mounting screws. Loosen the Set Screw (D) and
pull the Cam (C) back enough so that it clears the threads of the mounting screws.
6. Finally, we have seen technicians go through all the above procedures and still have no results. Turn the Motor Cam
(C) manually (to check for any binding) and then retry the Automatic Test in Portals to get the motor to turn. There
may be a dead spot in the motor (broken tooth on the gear inside the motor, which is unseen without actually opening the
motor case). If the above procedures do not fix the problem, the motor may be bad. For further instructions, call
Technical Support at the below numbers. The next page summarizes how to test the motor in your H-D
�
Pinball Game.
Page 1 of 2
Stern Pinball, Inc. � 2000
Technical Service Bulletin N� 114 2020 Janice Avenue Melrose Park, IL 60160 Tel 708-345-7700 or Toll-Free (USA/Canada) 1-800-542-5377 Fax 708-345-7889
Testing the motor in Portals Harley-Davidson Specific (Motorcycle Test):
To initiate, from the DIAGNOSTICS MENU, select the "H-D" Icon with either the Red "LEFT" or Green "RIGHT"
Button and press the Black "ENTER" Button (the START Button operates in the same manner). (New to our
Portals Service Menu? Review Section 3, Chapter 1 in your Service Game Manual.)
This will bring up the HARLEY-DAVIDSON SPECIFIC MENU. Similiar to "BEGIN PLAY TEST," this menu is used to test
and adjust Game Specific Features. The feature in this game is MOTORCYCLE TEST. Important: The Power Interlock
Switch must be pulled out for this Test to Function.
Motor Up/Down Test Procedure:
Select the "RUN" Icon to automatically bring the Motor & Trough from the DOWN or UP position to the opposite position.
Select the "PULSE" Icon to move the motor slowly UP and/or DOWN one pulse at a time. This test allows you to operate
the Motor on this mechanism which is controlled by a Relay driven by Q19 on the I/O Power Driver Board for the purpose
of troubleshooting.
Any questions, comments or you require furthur instructions, please contact Technical Support at the below numbers.
Page 2 of 2
Stern Pinball, Inc. � 2000
Technical Service Bulletin N� 114 2020 Janice Avenue Melrose Park, IL 60160 Tel 708-345-7700 or Toll-Free (USA/Canada) 1-800-542-5377 Fax 708-345-7889