Checkout and maintenance
1-2
Be supplied with correct power and ground.
Give a display output.
Accept Keypad input.
Process commands through the Computer.
Receive and process encoder/transducer inputs.
Brake
Display proper weight amount and location.
The technician should watch a machine work and make performance assessments based on what is seen. If
subsystem failure is suspected, use diagnostic tests to confirm the failure. Remember, every part requires
input to produce the expected output. These outputs in turn become inputs for further use by the system.
TROUBLEsHOOT UsINg CORRECT DIAgNOsTICs pROCEDUREs
Balancers are relatively simple pieces of machinery. With proper diagnostic procedures, balancer problems
should be quickly resolved. The Basics that the technician must never overlook are:
AC Power. The unit must be supplied with correct AC power.
1.
Ground. These machines depend on proper Grounding for proper and safe function. Improper or poor
2.
ground will create problems that are quite difficult to diagnose, and may create a dangerous condition.
Check, never assume ground is correct!
DC Power. The microprocessor will not run correctly (if at all) if it is not supplied with proper DC power
3.
and ground. Check DC power for ripple or drift ( may indicate faulty regulation or failing PCB's). Ensure
there is enough power and a good ground.
Inputs. Check for proper Encoder and Transducer signals.
4.
Output - Once all voltages and signal levels are present a proper output can be expected.
5.
Check for any registered diagnostic codes using F/P 28, in most cases these codes will point to a solu
-
6.
tion.
TOOLs REQUIRED WHEN sERVICINg THE Y2K BALANCERs
Tools
metric Sockets (4mm Thru 15mm)
Metric Wrenches (6mm Thru 15mm)
Assorted Hex Wrenches metric / standard
Inch Pound Torque Wrench
Foot Pound Torque Wrench
#2 Phillips Screwdriver
#2 Flat Head Screwdriver
Digital Volt-ohm Meter
Small Screwdriver
Hilti Rotor hammer drill (Installation Option)
Pruefrotor (H6416946) or fine balanced
tire/wheel assembly.
3.50 ounce (100gr) wheel weight
Programmed Secure Disk (Loading Balancer Software)
Loctite #242 and #272 or #609
Silicone based grease - used for transducer ball placement
Putty for fine wheel balancing.
1, 2 and 3 ounce weights verified accurate (weigh on postal scales and trim to exact weight - paint and label)
A test tire and wheel balanced to within 0.10 oz. (2.8 gr.) on both inside and outside planes or 0.20 oz. stati
-
cally (mode 7) is required during some troubleshooting procedures.
In the event of vibratory system replacement, the use of a certified Pruefrotor (Figure 3-1) will be required to
confirm conformance to design specifications and certification requirements.
Summary of Contents for EEWB304B
Page 1: ...WHEEL BALANCER Service Manual EEWB502B C EEWB503B EEWB304B ...
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