Series 340: Mechanical Maintenance
Course 341: Mechanical Drive Maintenance
Covers alignment, particularly coupling alignment. Includes installation and maintenance of mechanical drives, from chain drives to enclosed gear drives. Lesson 1 - Chain Drives
Topics:
Installing and aligning shafts; Mounting the drive sprockets and chain; Test running; Lubrication; PM; Chain storage; Troubleshooting; Safety Learning Objectives: - List four types of chain drives.
- Describe the procedure for aligning the driving and driven shafts.
- Distinguish between bored sprockets and bushed sprockets and tell how each is mounted.
- Tell how a drive chain is mounted on the sprockets.
- List four methods of lubrication for chain drives.
- Explain both no-load and full-load test running procedures.
- Describe the causes of fatigue breaks, tensile breaks, rapid chain wear, roller wear, and side plate spreading.
Lesson 2 - Belt Drives
Topics:
Installing and aligning drives; Mounting sheaves and pulleys; Installing and adjusting V-belts; Idler sheaves; Flat, positive belt drives; Maintenance Learning Objectives: - List the three general types of belt drive and explain how they work.
- Tell how sheaves and pulleys are mounted and aligned on their shafts.
- Explain why all the belts in a multi-belt drive must be replaced at the same time.
- Describe two ways of taking up slack in a stretched V-belt.
- List three ways of splicing the ends of a flat belt together.
- Differentiate between the way positive-drive belts and other types of belt transmit power.
Lesson 3 - Open Gear Devices
Topics:
Aligning and preparing shafts; Handling and mounting gears; Lubricating open gearing; Preventive maintenance; Troubleshooting; Safety Learning Objectives: - Explain why open gearing requires special provisions for feeding lubricating oil to its parts.
- Describe how to align parallel shafts, intersecting right-angle shafts, and nonintersecting right-angle shafts.
- Describe the procedure for aligning worm gearing.
- List some of the problems a visual inspection of gearing can uncover.
- Describe the appearance and causes of wear, abrasion, corrosion, scoring, pitting, spalling, cold flowing, fatigue breaks, and cracked rims and webs.
Lesson 4 - Enclosed Gear Drives
Topics:
Preparing the foundation; Installation; Lubrication; Test running; PM; Troubleshooting Learning Objectives: - Tell how an enclosed gear drive should be mounted on the floor.
- Tell how an enclosed gear drive should be mounted on the framework of a driven machine.
- Describe the two methods of lubrication used in enclosed gear drives.
- Explain what should be done during the initial run-in, the one-week check, and the thirty-day check.
- List four steps you should take to protect an enclosed gear drive that is to be put into storage.
- Identify typical nameplate data.
Lesson 5 - Drive Couplings
Topics:
Installing and aligning shaft couplings; Expansion allowance; Lubrication; No-load testing; Installing universal joints; PM Learning Objectives: - List three purposes of a coupling.
- List the three basic types of coupling.
- Explain how to check both the angular and the parallel alignment of shafts.
- Tell how a dial indicator is used in precision coupling alignment.
- Calculate shim thickness required to align couplings in an angular plane.
- Distinguish between couplings that need lubrication and those that do not.
- Describe how shaft couplings, spacer couplings, floating shaft couplings, and universal joints are installed.
|
|
