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Preventive Maintenance (Dyno)

Introduction

To ensure that the Dyno is continuously kept in proper operating condition, various preventive maintenance procedures must be performed on a periodic basis. Only AUTHORIZED personnel should perform these tasks. Burke Porter Machinery offers a Preventive Maintenance Contract on all of our Dynamometer products. For more information on this service, please click on the above link.

Preventive maintenance requirements and intervals are specified in the following Checks and Services schedules. These preventive maintenance checks should be accomplished prior to operating the Dyno. After performing the Quarterly Checks and Services, an operational check of the Dyno should be performed. During operation, observe for abnormal operation, unusual noises, limit switches that fail to operate correctly, etc.

 Air Line Components Servicing

Filters purge the air lines of dirt and moisture. Perform the following steps to disassemble, clean and/or replace each filter.

WARNING: Always make sure the main air shut-off valve is in the OFF position before working on air-operated devices. DO NOT remove the bowl when the unit is in service. Depressurize the unit before removing and servicing the bowl.

CAUTION: Polycarbonate bowls may be damaged and possibly fail if exposed to synthetic oils, thinner solvents, trichloroethylene, kerosene and other aromatic hydrocarbons. Do not use these materials to clean the air filters.

 · Depressurize the bowl.

 · Remove bowl, remove filter element, and wipe bowl with a clean dry cloth.

 · Check the bowl and replace if cracked, damaged, or deteriorated.

 · Check the bowl seal and replace if damaged or deteriorated.

 · Clean or replace the filter element.

 · Install filter element and bowl.

 Checks and Services

 Daily

 General

 · Observe machine operation for any unusual noises and/or unexpected machine functions. 
   Isolate  and repair.

 · Repair intermittent problems (they may indicate an impending failure).

 Wheel chocks

 · Inspect the mechanical parts for signs of wear and tear. Repair or replace as necessary. 
   See supplier’s literature for any preventive maintenance and/or lubrication instructions.

 · Inspect the belt for cuts, damage or excessive wear. Replace as necessary.

 Cable restraints

· Inspect the winches for any damage or excessive wear. Repair or replace as necessary. 
   See supplier’s literature for any preventive maintenance and/or lubrication instructions.

· Inspect the cables for the following. Replace as necessary.

    * Kinking, cutting, crushing, unstranding, or broken wires (“fish-hooks”).

    * Reduced diameter due to wear or stretching.

· Corroded or broken wires at end connections.

· Loose, stretched, or improperly applied connections.

 · That they are properly wound about the drum.

 Weekly

 Rollers

 · Rolls must be free to turn. If not, determine cause of problem and repair as necessary.

 · Inspect the rolls for a buildup of dirt, vehicle contaminants and rubber. Scrape off excess build-up
   of rubber and clean as necessary using a suitable cleaning agent and brush.

 Pneumatic components

 · Maintain main regulator pressure at 80 psi minimum to 100 psi maximum

 · Check air lines and components for leaks. Tighten connections and/or replace faulty lines
   and/or components.

 · Check air line filter and ensure proper drainage. 

 Monthly

General

 · Check for loose bolted connections and machine anchoring bolts (first 6 months only). 
  Tighten as needed.

 · General appearance. Clean labels, tags, etc. Wipe excess grease from fittings. Roller inner
  ledge must be free of tire dust build up. Clean as necessary.

 Vehicle movement and tire burst detectors

 · Check mounting bolts for tightness.

 · Test the limit switches to ensure they are operational.

 · Inspect the electrical cable for any cracks or wear of casing.

Pneumatic components

 · Visually inspect all parts for wear or damage. Repair or replace as needed.

 · Check the lubricator oil supply (if installed) and replenish as required with Mobil DTE-24.

 Roll brakes

 · Visually inspect all parts for wear or damage. Check brake pad linings for excessive wear. 

 · All fasteners are secure. Tighten as necessary.

 · Check for presence of vehicle contaminants (motor oil, antifreeze, etc.) which could cause slippage. Clean or replace pads as necessary.

 Quarterly

 Motor control cabinet and operator station

 · Visually inspect all parts for wear, damage, or signs of overheating. Repair or replace as needed.

 · Check all lamps to ensure that none are burned out.

· Check all switches and pushbuttons to ensure that they are functional.

 · Clean fan intake and exhaust filters on motor control cabinet as necessary by vacuuming
   or washing.

 · Check all cable connections to ensure that they are tight.

 · Check all cables for signs of wear or damage. Repair or replace as needed.

 Torque load cell

 · Check to ensure that load cell is free of dirt and/or tire build-up. Clean as necessary.

 · Check all fasteners for tightness.

 · Check to ensure that the cable connection to the load cell is tight.

 · Visually inspect for wear or damage. Repair or replace as necessary

 Centering rolls system

 · Visually inspect all parts for wear or damage. Repair or replace as needed.

 · All fasteners are secure. Tighten as necessary.

 · Check gearbox for leaks. Tighten bolts or replace as necessary.

 · Gearbox breather and motor are free of tire compound. Clean as necessary.

 · Rolls are free of tire compound. Clean as necessary.

 · Ensure that the centering rollers turn freely and that the bearings rotate quietly. 
   Replace as necessary.

 · Verify that the limit switches are secure and are not free to move. 
   Manually operate each of the limit switches and verify its operation.

 Automatic roll covers

 · Visually inspect all parts for wear or damage. Repair or replace as needed.

 · Check Ryertex strips for wear. Do not allow wearing down to the point of contacting the
   mounting screws. Replace as necessary.

 · All fasteners are secure. Tighten as necessary.

 · Torque limiter is free of oil, grease, moisture, and tire compound. Clean as necessary.

 · Photoelectric sensors are free of tire compound. Clean as necessary.

 · Check drive chain for excessive backlash and for wear or damage. Adjust or replace as necessary.

 · Verify that the limit switches are secure and are not free to move. 
   Manually operate each of the limit switches and verify its operation.

 Blower assembly

· Visually inspect all parts for wear or damage. Repair or replace as needed.

 · All fasteners are secure. Tighten as necessary.

 · Clean filter as necessary by vacuuming or washing.

· Refer to the supplier’s manual for all other preventive maintenance items on the motor and blower.

 Bearing rotation assembly

 · Visually inspect all parts for wear or damage. Repair or replace as needed.

 · All fasteners are secure. Tighten as necessary.

 · Manually operate each of the limit switches and verify its operation.

 Cooling fan system (if equipped)

 · Visually inspect all parts for wear or damage. Repair or replace as needed.

 · All fasteners are secure. Tighten as necessary.

 · Ensure that the fan turns freely and that the bearings rotate quietly. 
   Replace as necessary (see supplier literature for information).

 Semiannual

 Pneumatic components

 · Clean or replace filter element every six months.

 · Refer to the supplier’s service literature for additional information.

 Preventive Maintenance Contracts (Back to Top)

Burke E. Porter Machinery offers a one (1) year Preventative Maintenance contract for Model 4000 MIM Dynamometers.

Preventative Maintenance contracts consist of two (2) scheduled visit (twice per year) by a BEP Field Service Engineer to perform routine maintenance such as inspection, grease, lubrication, and calibration, as necessary. The scheduled visits would take place twice per year, during normal working hours: Monday through Friday, 8AM – 5PM. Our Field Service Engineer would provide you with a service report, which would include any parts he recommends be replaced.

The purchase of any required repair parts, along with any installation labor, would be arranged after the PM visit and is not considered part of this annual contract. Any parts purchased under this type of contract would carry a “like new” warranty for up to 90 days from the time it was put into service. Warranty would vary by part type. Labor would not be included in this warranty.

The two PM visits would typically include:

Semi-Annual Inspection and Lube – to take less than a day and include:

1. Lubrication – lube only the motor each PM visit; inspect other lube points
    (such as centering lift gearbox oil level and grease fittings, etc.) and only re-lube as required

2. Brake Pads – visual inspection

3. Pneumatics – check water trap and filter; fill lubricator as required

4. Vehicle Centering Lifts – perform lubrication of drive train items as needed

5. Blower – inspect and clean intake filter as required

6. Race Actuators – verify proper operation

7. Roll Covers – verify proper operation; apply light machine oil to roll cover chain as required

8. Safety Devices – visual inspection of guards, etc.

9. Vehicle Restraints – inspect chocks or any other tie-downs employed

10. Computer – inspect hard drive and notate software revision number; scan disk and perform
      virus scan; inspect and clean filter as required

11. Control Panel – visual inspection and clean filter; verify proper cooling fan operation;
      inspect electro-mechanical contacts for arcing, carbon dust, etc.

12. Deckplate door – verify proper operation

Annual Calibration and Operational Check – to take about 1 day and include all items in Semi-Annual Inspection and Lube plus:

1. Calibration – perform dead weight and 2 or more coast-downs, checking data limits

2. Field Service Engineer to save system variables and coast-down data to disk for reference
    at BEP if needed

For pricing information or to schedule a Preventive Maintenance inspection, please call our Customer Service Department at (616) 234-1235.