CONNECTING RODS, PISTONS, RINGS & SLEEVES - CONT

CONNECTING RODS, PISTONS, RINGS & SLEEVES - CONT - TM-5-3820-256-24-5_245

CONNECTING RODS, PISTONS, RINGS & SLEEVES - CONT - TM-5-3820-256-24-5_247

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
Page Navigation
215

SERVICE MANUAL CONNECTING RODS, PISTONS, RINGS & SLEEVES Section 5 a. After piston has been thoroughly cleaned, locate the piston part number and engine model number stamped on top of piston (See Fig. 17.) IMPORTANT: (Refer to Figure 18.) • Full keystone grooves use the 0.1150 in. gauge pin to determine piston ring groove wear. • Half keystone grooves use the 0.0900 in. gauge pin to determine piston ring groove wear. • Rectangular grooves DO NOT use gauge pins. Use side clearance and ring gap dimensions to determine piston ring groove wear. b. Select appropriate size gauge pins for groove being measured (See Service Specification Chart for piston ring groove widths). c. Place correct size gauge pin and spring assembly in piston groove to be measured. BE SURE THAT CENTER OF GAUGE PINS ALIGN WITH CENTER OF PISTON SO GAUGE PINS ARE PARALLEL. (See Fig. 19). d. Select correct size outside micrometer to measure piston diameter over gauge pins as follows: Engine Micrometer Size 300 Series 3-4 in. 400 Series 4-5 in. Figure 16. - Piston Groove Wear Measuring Tool (Tool No. 3020) CGES-185-3 PRINTED IN UNITED STATES OF AMERICA Page 17

Privacy Statement
Press Release
Contact