OVERVIEW OF QA/QC PROCEDURE
BEFORE & AFTER REPAIR STRATEGY.
BEFORE & AFTER REPAIR STRATEGY.
Transmissions
⢠Dismantle planetary section and pre-inspect clutch plates.
⢠Check condition of modulating vales and solenoids.
⢠Check condition of input shaft and rotating gears.
⢠Replace worn parts with genuine OEM parts.
⢠Crack test planetary and transfer box housings.
⢠Check condition of output shaft and yokes.
⢠Dismantle new parts and dyno test.
⢠Documents and send dyno report to customer.
⢠Paint, package, fabricate metal stand and prepare for shipping.
Cylinders
⢠Wash and dismantle cylinder.
⢠Detach cylinder rod from barrel.
⢠Measure HZ & RZ of barrel. Cross hone where necessary.
⢠Check cylinder rod for straightness.
⢠Check cylinder gland and bolt fastening holes for conformity.
⢠Grind chrome grind cylinder rod.
⢠Replace warn parts with genuine spares.
⢠Assemble cylinder and load test.
⢠Fit new genuine seals and bushes.
⢠Document and submit load test report to customer.
⢠Paint, package and fabricate metal stand for shipping.
Undercarriage
⢠Measure track pitch, pin diameter, link height and width link for OEM compliance.
⢠Measure grouser bar height, document and apply corrective action by stripping and re-bonding.
⢠Line bore and fit new pins and bushes where worn.
⢠Bushes and pins to be hardened with nitrogen gas methodology.
⢠Assemble link sections using available track press.
⢠Fit track pads to links and torque pad bolts to OEM settings (use OEM stretch bolts only).
⢠Rollouts completely assembled track groups, paint brand color, pallet, strap and prepare for shipping.
Engines
⢠Inspect induction system. Are there signs of dust entry?
⢠Problem identified and rectified.
⢠Brief explanation added in comments.
⢠Inspect/replace all air inlet pipes & hosing.
⢠Replace o-rings & gaskets.
⢠Inspect/replace muffler and exhaust piping.
⢠Inlet hoses and pipes silasticâd when refitted.
⢠Ensure all inlet & exhaust clamps are secure.
⢠Check operation of air filter restriction gauge.
⢠Replace inner & outer air cleaners. Clean out dust traps.
⢠Machine fitted with turbo timer.
⢠Engine oil level correct.
⢠Fuel system primed.
⢠Radiator level correct.
⢠Record temp drop over radiator.
⢠Engine oil primed with prelube or manually.
⢠Record high Idle RPM (at operating temp).
⢠Record stall RPM (at operating temp).
⢠Record low Idle RPM (at operating temp).
Differentials
⢠Pre-inspect prior to pre-wash and document any oil leaks.
⢠Dismantle unit and inspect crown wheel. Pinion gear, spider gears, cross bar, seals, bearings for conformity.
⢠Draw up parts requisition list and pre-order genuine spares from the O.E.M.
⢠Re-assemble dill and load test.
⢠Send test report to customer.
⢠Paint, package, fabricate metal stand and prepare for shipping.
⢠Pre-inspect prior to pre-wash and document any oil leaks.
⢠Dismantle unit and inspect crown wheel. Pinion gear, spider gears, cross bar, seals, bearings for conformity.
⢠Draw up parts requisition list and pre-order genuine spares from the O.E.M.
⢠Re-assemble dill and load test.
⢠Send test report to customer.
⢠Paint, package, fabricate metal stand and prepare for shipping.
Boom & Stick
⢠Sandblast and prepare for ND7 testing.
⢠Use ultrasound testing with magnetic flux to test for hair line cracks.
⢠Laser weld mating faces where cracks are evident.
⢠Line bore pin eye holes where non conformity is evident.
⢠Pre-order OEM genuine web bushes & seals with pins and press.
⢠Paint, package, fabricate metal stand and prepare for shipping.
Wheel Hub & Final Drive
⢠Document oil leaks pre-wash.
⢠Pressure clean, dismantle and pre-inspect loose parts.
⢠Replace worn parts with genuine O.E.M. parts.
⢠Check spindle, brake pack, wheel hub and final drive planetary section for O.E.M. conformity using the O.E.M. performance hand book.
⢠Machine wheel hub around the flanges and bearing landing areas and fit new bearings.
⢠Check and inspect spindle, wheel hub and mounting holes including the splines.
⢠Inspect and replace worn planetary gears, locating pins, bushes, ring gear, duo-cone seals and bull gear.
⢠Assemble, pre-test with loading report.
⢠Document and send test report to customer.
Torque Converters
⢠Dismantle housings from torque converter group.
⢠Inspect stator, rotators, seals, impeller and rotary parts.
⢠Replace with genuine O.E.M. spares.
⢠Check condition of charge pump and relief valves.
⢠Replace with new O.E.M. charge pump.
⢠Re-assemble torque converter group to torque converter housing with yoke relay valves and with O.E.M. charge pump.
⢠Run on test bench document and send test report to customer.
⢠Paint, package, fabricate metal stand and prepare for shipping.
Buckets
⢠Standardise and construct bucket from O.E.M. drawings.
⢠Standardise buckets by ordering O.E.M. G.E.T. Swivel pins, 3-piece adaptors etc.
⢠Line bore and fit adaptor kit.
⢠Use multi-plus wear package as per standardisation on build list.
⢠Rollout hardox material and weld with co2 gas weld procedures.
⢠Fit wear plates across cheek faces and assemble protective shrouds on bucket edge.
⢠Reinforce bucket linings with additional wear plates and c02 weld.
⢠Fit and weld heel shrouds where necessary.
⢠Sand blast and prepare for painting.
