PREVIOUS | TABLE OF CONTENTS | NEXT

Basic Machining and Minor Overhauls

7.1 Basic Machining 

(1) Machine shop practices

(a) Principles of machining

(b) Layout work and shop safety

(c) Set-up tools and measurement

(d) Machine maintenance

(2) Lathe operations

(a) Safety

(b) Tool bit grinding

(c) Facing

(d) Short turning

(e) Long turning

(f) Turning between centres

(g) Taper turning

(h) Drilling

(i) Boring

(j) Parting

(k) Tapering

(l) Reaming

(m) External threading

(n) Internal threading

(3) Machine shop project

This portion will be completed with the student manufacturing a practical project incorporating diversified lathe operations.

7.2 Minor overhauls ^

(1) Bearings

(a) Removal

(i) Shaft fitted taper roller bearing

(ii) Shaft fitted ball bearing

(iii) Housing fitted ball bearing

(iv) Journal bearing

(b) Fit

(i) Tapered roller bearing

(ii) Ball bearing

(iii) Journal bearing

(2) Pumps

(a) Identification

(b) Strip and overhaul

(i) Bearing clearances and tolerances

(ii) Wear rings

(iii) Impellers

(iv) Pistons and rings

(v) Shaft wear

(vi) Alignment and balance

(vii) Mechanical seals

(c) Assemble and test

(3) Heat exchangers

(a) Types (shell and tube / plate type)

(b) Strip and inspect

(c) Test for leaks

(d) Plugging and end tube sealing

(e) Assemble and test

(4) Gauges

(a) Calibration of gauges

(b) Gauge glasses

(i) Removal

(ii) Fitting

(iii) Testing

(5) Internal combustion engine

(a) Strip a small internal combustion engine for practical exposure to all engine components:

(i) Injectors

(ii) Pumps

(iii) Cylinder heads

(iv) Pistons and rings

(v) Crankshaft

(vi) Bearings and seals

(b) Assemble small internal combustion engine noting:

(i) Clearances

(ii) Tolerances

(iii) Assembly procedures

(6) Repair project

(a) Remove 4 broken studs from a metal block using:

(i) Drilling

(ii) Ez-out

(iii) Chisel

7.3 Electrical systems ^

(1) Cable and wiring

(a) Removing and replacing shipboard electrical wiring

(b) Bulkhead penetration and waterproofing

(c) Test, repair and replacement of florescent and incandescent lighting

(2) Test equipment

(a) Voltmeter (digital)

(b) Multimeter

(c) Tong tester

(d) Megger

(3) Minor overhaul and repair of electrical contacts, switches and circuit breakers.

PREVIOUS | TABLE OF CONTENTS | NEXT