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Bendix

BA-921

Compressor Installation and Application Review

Bendix

BA-921

Compressor

Complete one Compressor Installation and Application Review Form for each fleet installation

arrangement (vehicle type/engine combination) and send to:

Bendix Commercial Vehicle Systems LLC

Attn: Hans Burkhardt – Product Engineer

Cc: Mark McCollough – Engineering Manager

901 Cleveland Street

Elyria, Ohio 44035

Note: Measurements should be made with commercial grade instruments with tolerances of 3% max.

CAUTION: When working on vehicles and/or carrying out testing procedures, always follow standard

industry safety guidelines, including the use of adequate eye protection, etc.

Compressor Part Number: ______________________________________________

Compressor Serial Number: _____________________________________________

Vehicle Make and Model: ______________________________________________

Engine Make and Model: ______________________________________________

Engine Serial/Unit Number: ____________________________________________

Submitted By: ______________________________________________

Employed By: ______________________________________________

Date Submitted: _____________________________________________

The following items should accompany this form:

• Attach any available air system schematic

• Attach available technical information for associated components

• Attach photos of the compressor installation

• Attach photos of the compressor air inlet hose arrangement

• Attach photos of the compressor governor arrangement

• Attach photos of any devices in the discharge line

• Attach photos of the air dryer

Page 1 of 18

Summary of content (18 pages)

PAGE 1
Bendix® BA-921® Compressor Installation and Application Review Bendix® BA-921® Compressor Complete one Compressor Installation and Application Review Form for each fleet installation arrangement (vehicle type/engine combination) and send to: Bendix Commercial Vehicle Systems LLC Attn: Hans Burkhardt – Product Engineer Cc: Mark McCollough – Engineering Manager 901 Cleveland Street Elyria, Ohio 44035 Note: Measurements should be made with commercial grade instruments with tolerances of 3% max.
PAGE 2
Bendix® BA-921® Compressor Installation and Application Review Section I Application Information Check the boxes that best apply and use the comments space to further clarify: On-Highway and Linehaul Straight truck Single trailer Double trailer Triple trailer Motor coach RV Other : Vocational Delivery Dumper/Mixer Terminal Jockey Bulk Unloader Transit Bus Crash/Fire/Rescue Other : Off-Highway and Military Description: Page 2 of 18
PAGE 3
Bendix® BA-921® Compressor Installation and Application Review Section II Vehicle Features Requiring Air Check the boxes that best apply and use the comments space to further clarify: Air brakes Multiple Axles Number of axles: _________________________________ Air suspension Description: Bulk Unloading Typical time to unload: _________________________ Frequency of unloading events: __________________ Central Tire Inflation Description: Kneeling capability (bus feature) Doors or windshield wipers Air
PAGE 4
Bendix® BA-921® Compressor Installation and Application Review Section III Vehicle/Engine Requirements and Expectations Life expectation (in hours or miles): _________________________________ Duty Cycle expectation (percent time compressor operates loaded): 5% to 25% greater than 25% Duty cycle is considered the percentage of time that the compressor is operated in the loaded (pumping) condition. To calculate duty cycle, the total loaded time is divided by the total operating time of the compressor.
PAGE 5
Bendix® BA-921® Compressor Installation and Application Review Section III Vehicle/Engine Requirements and Expectations (cont’d) Installation angles: Engine installation angle: _____________________________________ Compressor rotated angle: _____________________________________ Gradability (vehicle operation on slope): Side: _______________________________________________________ For/Aft: ____________________________________________________ Percent of time operated on inclines: _______________________
PAGE 6
Bendix® BA-921® Compressor Installation and Application Review Section III Vehicle/Engine Requirements and Expectations (cont’d) Compressor Thru-drive: Pump Drive (For new applications refer to Bendix Application Guideline BW-100-A, BW-132-A or Compressor Customer Drawing) Thru-drive to be used for: ______________________________________ Installed pump: ________________________________________ Vendor/PN: ___________________________________________ Operating torque: _____________________________________
PAGE 7
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components Compressor Air Induction System - Naturally Aspirated Compressor Applications Only Inlet Line Filter source Engine Air Filter Allowable engine air inlet restriction (see the engine manufacturer’s engine data sheet): Clean _____________________ Dirty _____________________ Recommended Test Procedure Install a water manometer (gauge) to read the pressure at the air inlet fitting on the compressor.
PAGE 8
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Compressor Air Induction System - Naturally Aspirated Compressor Applications Only (Cont’d) Line size _____________________________________ Line length ___________________________________ Expected/Measured Worst-Case Inlet Air Temperature: _______________ Was measured restriction less than 25 in H2O? YES NO Is the inlet air temperature greater than 170°F? YES NO Recommended Test Procedure: In
PAGE 9
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (Cont’d) Compressor Air Induction System - Turbocharged Compressor Applications Only (NOTE: Testing should be performed by the engine Manufacturer) Compressor Inlet Line The compressor inlet line will run from the pressurized side of the engine intake system (i.e. intake manifold) to the compressor inlet port.
PAGE 10
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (Cont’d) Compressor Air Induction System - Turbocharged Compressor Applications Only (Cont’d) (NOTE: Testing should be performed by the engine Manufacturer) Expected/Measured Minimum Compressor Inlet Pressure / Vacuum (measured at compressor at rated engine speed and no engine load.
PAGE 11
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Discharge line First component after compressor (filters, separators, traps, dryers) What: _________________________________________ Line size to: ____________________________________ Distance to: ____________________________________ Second component after compressor (filters, separators, traps, dryers) What: _________________________________________ Line size to: __________________________________
PAGE 12
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Total Reservoir Volume ______________________________ Charge time required to raise the reservoir pressure from governor cut-in to cut-out at maximum rated engine speed. _______________________________ Recommended Test Procedure: Drain down the entire air system (supply, service and accessory tanks) to below 75 psi.
PAGE 13
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Coolant Return Return Port Location: _____________________________ Line size to: ____________________________________ Distance to: ____________________________________ Measured coolant flow rate At engine idle: ______________________ At engine rated speed: _________________ Recommended Test Procedure: Install a flow meter in series with the coolant supply or return line of the air compressor.
PAGE 14
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Compressor Oil Supply Source: _________________________________________ Line size to: ____________________________________ Distance to: ____________________________________ Compressor Oil Return Return through front flange Return through bottom drain only Return through both bottom drain and front flange Measured Oil Supply Pressure (record at compressor fitting at engine idle): __________________
PAGE 15
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Governor location Compressor mounted Air Dryer Mounted Remote Compressor control Governor for Compressor Unloader Governor part number and/or vendor: _______________________ Cut out pressure: _______________________________________ Range or band: _________________________________________ Governor with discharge line unloading Governor part number and/or vendor: _______________________ Cut out pres
PAGE 16
Bendix® BA-921® Compressor Installation and Application Review Section IV Air System Components (cont’d) Air Dryer Air Dryer part number and/or vendor: ____________________________ Maximum allowable temperature to the dryer: 1600F (Bendix Air Dryers Requirement) Minimum allowable temperature to the dryer: 450F above lowest ambient (Bendix Air Dryer Requirement) Recommended Test Procedure: Install a temperature probe at the air dryer inlet fitting.
PAGE 17
Bendix® BA-921® Compressor Installation and Application Review COMMENTS BENDIX ENGINEERING USE ONLY Does the compressor installation meet all Bendix Commercial Vehicle Systems requirements? YES NO (See BW-132-A, BW-110-A, BW-109-A and BW-100-A for complete application and installation requirements.