Ingersoll-Rand BU7A Product Maintenance Information
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- Product information (13 pages) ,
- Parts, operation and maintenance manual (44 pages) ,
- Installation and operation manual (113 pages)
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Summary of Contents for Ingersoll-Rand BU7A
- Page 1 Product Maintenance Information BU7A AIR WINCH (Dwg. MHP1233) Save These Instructions Form MHD56461 Edition 2 October 2013 45917663 2013 Ingersoll-Rand ©...
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Page 2: Periodic Inspection
Only allow trained technicians to perform maintenance on this product. For additional information contact factory or nearest Ingersoll Rand Ingersoll Rand Distributor. For additional supporting documentation refer to Table 1 ‘Product Information Manuals’ on page 2. Manuals can be downloaded from http://www.ingersollrandproducts.com. The use of other than genuine Ingersoll Rand replacement parts may result in safety hazards, decreased performance and increased maintenance and will invalidate all warranties. - Page 3 Table 3: Maintenance Interval Chart Normal Application The following work can be completed by owner maintenance personnel System Air Filter Inspect system air filter every 45 days or 125 hours Grease Fittings Lubricate grease fittings every 180 days or 500 hours Gearbox Grease Level Check grease level in gearbox every 120 days or 340 hours It is recommended that the following work be completed by an Ingersoll Rand trained service technician.
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Page 4: Inspection Report
INSPECTION REPORT Ingersoll Rand BU7A Air Winch Model Number: Date: Serial Number: Inspected by: Reason for Inspection: (Check Applicable Box) 1. Scheduled Periodic Inspection: Operating Environment: (_____ Months _____ Years) 2. Discrepancy(s) noted during Frequent Inspection Normal ____ Heavy____ Severe ____ 3. -
Page 5: Troubleshooting
TROUBLESHOOTING This section provides basic troubleshooting information. Determination of specific causes to problems are best identified by thorough inspections performed by personnel instructed in safety, operation and maintenance of this equipment. The chart below provides a brief guide to common winch symptoms, probable causes and remedies. SYMPTOM CAUSE REMEDY... -
Page 6: Maintenance
MAINTENANCE Adjusting Automatic Brake WARNING Refer to Dwg. MHP1210 in the Product Parts Information Manual. • Never perform maintenance on the winch while it is supporting a load. If the brake assembly is removed or repaired, ensure that the breather is installed •... - Page 7 • Do all pressing on the stamped face of the bearing. The construction of the BU7A winch allows for the motor to be removed, repaired and replaced without removing the gears. Alternatively, gears can be removed and replaced without disturbing the motor.
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Page 8: Cleaning, Inspection And Repair
5. Remove valve assemblies (452). Remove ‘O’ rings (443) and (449) and protectors • Earlier BU7A winches contain a reverse valve bushing with the keyway (451). Discard ‘O’ rings. running the entire length of bushing making it difficult to determine which 6. - Page 9 16. Insert rotary valve into rotary valve bushing. The raised tang on rotary valve CAUTION should be pointing toward the inlet bushing. 17. Lubricate the inside and outside of crank pin sleeve (36) and place on rotary valve • The spring can SNAP off throttle lever. KEEP the throttle lever pointed away tang, all the way to the left.
- Page 10 Hand tight. 15. Apply thread sealant to the brake elbow (225) and hand tighten. BU7A winch 125% Test Load = 1250 lbs (567 kg). 16. Place a thrust washer (13) into the valve chest and tap with a hammer until seated.
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Page 11: Torque Chart
TORQUE CHART Standard Coarse Thread Torque SAE Grade 5 SAE Grade 8 Size Lubricated PTFE Lubricated PTFE 1/4-20 8-10 12-14 9-10 5/16-18 17-20 13-15 25-28 18-21 11-13 3/8-16 31-35 23-26 14-16 44-49 33-37 20-22 7/16-14 49-56 37-42 22-25 70-79 52-59 31-36 1/2-13 75-85... - Page 12 www.ingersollrandproducts.com...
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