1. All gearboxes or assemblies will be:
- In a completely disassembled condition .
- Oil Cooler / Heat Exchanger will be disassembled .
- Cleaned with a wire brush.
- Inspected and/or tested as follows:
- All Tolerances will be according to the respective drawings and also GA drawings will be used for references .
- Cases, housings, etc. - will be visually inspected for cracks and other signs of wear.
- Shafts & Gearing - visually inspect and dimensionally checked, for possible reuse.
2. A detailed line by line quotation of all work required to recondition the gearbox will be prepared and include:
- List of new components required.
- Required processes and procedures for reusable parts.
- Man power cost as well as material cost to complete the job.
INNOTRANS Repair Specifications:
1. Fits
- All fits will be returned to original size and relative centres using plating, sleeving and/or welding and machining as approved by the customer.
2. Shafting
- Repair may be made by plating and grinding, or machining and sleeving.
- Will be straight and finished in accordance with tolerances and finish specifications as indicated on appropriate drawings.
- New shafting provided will match the specifications and dimensions of the original part as per customer print.
- Exposed threads, shaft ends and couplings will be protected with an anti-rust protection coating prior to shipping your Gear Box.
3. Gearing
- Will be dimensionally inspected to customer prints, manufacturers' prints, or reverse engineered.
- New gearing provided will meet or exceed the specifications and dimensions of the original parts as per customer print.
4. Cases, Housing, etc.
- Fits - All fits will be returned to original size and relative centers using either; sleeving and/or welding and machining as approved by the customer
- All bolts, studs, pipe plugs, and other fittings will be removed and the holes re-tapped as necessary.
- Bolts, studs, and pipe fittings may be reused if in good condition.
- Replacement bolts, studs, and pipe fittings will be of equivalent grade and material unless otherwise specified.
- Customer must approve any print modifications prior to implementation.
5. Assembly and Test Procedures
- All seals, shims, and gaskets will be replaced
- All bearings will be replaced.
- All hardware will be reused or replaced depending upon condition.
- All repaired and overhauled units will be run tested to check contact patterns, clearances, backlash and
- Pressure test will be taken of the unit when applicable to check for housing leakages
6. Painting and Identification
- All gearboxes will have:
- Exterior surfaces cleaned of all loose scale and rust.
- Entire Housing surfaces cleaned of all dirt and oil.
- Painting will be done unless otherwise specified by the customer.
- A new identification tag will be installed to each overhauled gearbox with the following information:
- Date of Overhauling
- Our Work Order number
Run Test Procedure
- Firmly mount gearbox to be tested to run test stand.
- Fill the unit with specified lubricant as per customer requirement.
- Attach the oil pumping station to the unit if required.
- All run test equipment must be attached.
- Temperature will be checked and documented.
- Start test motor and set variable RPM to the gearbox requirements.
- Attach gearbox to test motor and record decibel reading during run test.
- Check all sealed areas for any oil leakage.
- Gearbox bearing temperature will be checked and documented at several intervals during testing.
- Vibration and other non-destructive testing per customer requirements are available.