CERTIFIER MODEL 912
MAINTENANCE INSTRUCTIONS AND
PARTS BOOK
CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
Revision History:
Name
Gene Ambacher
Gene Ambacher
Page 2 of 22
Date
October 2, 2013
October 14, 2013
Changes
Initial Draft
Final Draft
Version #
1.0.0
2.0.0
# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Congratulations on your purchase of the 912 Certification System. As you become
familiar with the system be sure you learn to protect it to ensure a long life and eliminate
repair costs. Make sure you have a planned maintenance schedule.
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
Make sure that your input power always contains a ground pin.
Note: a good AC earth ground is necessary for the 912 to have accurate 121 time data.
Make sure that the AC electrical outlet is properly grounded and that the neutral ground
reference point is not greater than 100 feet from the AC outlet. Do not use AC
extension cords that has less than 14 AGW gauge wires and are great than fifty feet in
length. In high EMF noise areas ( near welding machines ) a new neutral ground
reference point at the AC outlet maybe needed. Contact your local Electrician for help.
No Pin
Ground pin
Always keep the access doors closed on the equipment to minimize dust exposure.
Occasionally blow out any dust that gets trapped at the rear of the computer.
Access Door Closed
Computer Tower
Part # 18019
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# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Make sure your input air is moisture free and no lubricants are added. This could cause
the manifold’s internal components to not function properly. Air quality should be
inspected regularly. Take the bottom cap off the regulator and make sure the filter is
clean and dry (Filters may vary).
Filter
Cap
Filter Regulator
Part # 11108
All hoses inside and out of the tester should be straight with no kinks.
Good
#87002 121 – REV 2.0.0 – OCT. 2013
Bad
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
If you choose to add equipment inside the system (not recommended), be sure that the
additional equipment does not compromise air flow in the air lines.
Bad
Warning: The sensor (transducer) is a very sensitive piece of equipment. Do not drop
or bang the sensor against hard surfaces. Do not use any tool on the body of the
sensor. Do not drag the sensor cable by the sensor body. Any physical damage to the
sensor will cause the sensor to go out of calibration and void the warranty.
If you suspect the sensor to be faulty, do not disassemble the product. Disassembly
could loosen or break internal wires and cause permanent damage. The sensor’s status
can be checked with the hub diagnostic tab on the GUI screen, or by calling Lite-Check
for troubleshooting instructions.
Bad
Bad
Good Sensor with cable
Part # 18038
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# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
When testing is in progress, all cables should be placed in a safe path away from high
traffic areas. This prevents the cable being run over and/or cut, causing wires to short
and severely damaging electronic equipment inside the tester. Inspect the cables on
a regular basis.
Bad
Bad
Place the hub in safe zones during tests. The 8 sensor ports on the hub should be
checked regularly for damage.
351C HUB
Part # 18009
Port’s
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
The 4 contact pins in each hub sensor receptacle should be straight and equally
spaced. Damaged pins making contact will cause costly damage to the hub’s circuitry. If
the pins are broken, replace immediately.
Good
Bad
.
Hub Sensor
Connection Assy.
Part # 17080
All air lines and plugs should be clean and free of debris. Test results will be inaccurate
and may cause failures. Replace these items as needed
Clogged
Sensor Flexible Hose
Part # 17093
Page 8 of 22
Poor Condition
# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Air differential kits gathering data during tests are highly sensitive. The straight swivel in
the manifold has a .0018 inche hole drilled through it. Any debris trapped in the
manifold will affect the test results causing failures.
Swivel Hole
Swivel
Air Differential Kit
Part # 18041
Manifolds, if properly maintained, will provide quality test results for many years to
come. However, with time, the valves in the solenoids can become thin on grease –
especially with bad input air – and have to be serviced. (Styles of manifolds may vary.)
Solenoid
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
If a solenoid service body kit is required – before breakdown make sure you become
familiar with all the pieces involved in the solenoid assembly and the orientation of each
piece. Part numbers may vary so call for details.
Solenoid Parts
Plunger
After breaking the solenoid down, clean all pieces (especially the plunger) and apply a
light coat of silicon grease. When reconnecting the solenoid make sure the gaskets on
the end caps are positioned to block the corner holes, or air leaks will occur.
Diamond gasket
Page 10 of 22
Hole
Ring Gasket
Hole
# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Be sure to properly stow the equipment with the tester or in a safe environment after the
testing is completed.
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
Place equipment in a safe clean environment away from high traffic areas when testing.
Page 12 of 22
# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
If you choose to add your own storage unit for equipment, DO NOT weld anything to the
tester and make sure the mounting hardware does not interfere with the components
inside or outside of the tester.
Custom supports can be added to the Hub to limit any physical damage.
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
When running self tests make sure the equipment is set up correctly.
To run the 121 Timing Self Test, connect the service (blue) glad-hand to the 50 CI
canister. Plug sensor into canister assembly and choose a port (1-8) on the hub.
121 Timing Self Test
Page 14 of 22
# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
To run the Differential Self Test, shut off the red, emergency glad-hand and
connect the blue service glad-hand to the differential manifold. Make sure to follow the
air flow direction (see next page) on the differential manifold, and connect to the 50 CI
canister. Plug the first sensor into the differential manifold, and connect other end to
Port 1 on the hub. Plug the second sensor into the 50CI canister and connect the other
end to Port 2 on the hub. Warning: Be sure not to confuse the ports or else test results
will fail.
Differential Self Test
Port 1
Port 2
Port 1
Port 2
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
When running Differential tests, always make sure that air flows through the swivel
towards the sensor connection.
Air Flow
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# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Accessories
50 CI Canisters
Part # 18025
Remote Control
Part # 17028
351C HUB
Part # 18009
8’ 7-Way Cable
Part # 18015
15’ Sensor w/cable
Part # 18038
363 Air Differential
Part # 18041
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
Left Panel Parts
Air Gauge
Part# 11081
Filter/Regulator
Part # 11056
(This is an example)
7-Way Socket
Part # 14005
Rocker Switch
Part # 15030
110AC Receptacle
Part # 14069
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# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
Right Panel Parts
7-Way Socket
Part # 14005
Flexcoil Hose (Red)
Part # 11067
Flexcoil Hose (Blue)
Part # 11066
HUB Socket
Assembly,
w/cables
Part # 17062
Drain Plug
Part # 11076
#87002 121 – REV 2.0.0 – OCT. 2013
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
Noregon Adapter
Part # 18047
Computer
Part # 18019
Surge Protector
Part # 15055
Power Supply
Part # 1800
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# 87002 Rev 2.0.0– Oct. 2013
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
CERTIFIER 912
LCD Monitor
Part # 18052
Flexible Keyboard
Part # 18051
#87002 121 – REV 2.0.0 – OCT. 2013
Optical Mouse
Part # 18053
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CERTIFIER 912
MAINTENANCE INSTRUCTIONS AND PARTS BOOK
912 AIR DIFFERENTIAL KIT
912 Air Differential Kit (18041)


363 Differential Sensor Cable Assembly (18023)
363 Differential Manifold with Sensor Assembly (18024)
45’ Sensor Cable Assembly
Part # 18023
Straight Glad-hand (x2)
Part # 11022
½” Hex Nipple
Part # 11061
½” MPT Straight Solid Swivel
Part # 11060
Page 22 of 22
½” MPT X ¼” FPT Brass
Bushing Part # 11019
½” Straight Brass Tee
Part # 11059
# 87002 Rev 2.0.0– Oct. 2013