Safety and operating instructions - Crowder Hydraulic Tools
Safety and operating instructions - Crowder Hydraulic Tools
Safety and operating instructions - Crowder Hydraulic Tools
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<strong>Safety</strong> <strong>and</strong> <strong>operating</strong> <strong>instructions</strong>www.<strong>Crowder</strong>Supply.com • Toll Free: 888-883-5144ALF 72D, ALF 72D-1, ALF 67/80D, BMK 62STroubleshooting<strong>Crowder</strong> Supply Co., Inc. • 8495 Roslyn St., Commerce City, CO 80022 • Toll Free: 888-883-5144 • www.<strong>Crowder</strong>Supply.comBasic troubleshooting guideProblem Cause SolutionInsufficient feedforceLow air pressureValve 3121 0726 80 has stuckor packings 0663 2124 00 areworn (only ALF models).Piston rod packing worn ordeformed.Increase air pressure to 6 bar.Dismantle the valve <strong>and</strong> clean it if necessary. Replacepackings if worn or deformed.Replace the packing1For wear limits <strong>and</strong> tightening torques, see the light rock drills service information, Atlas Copco document no. 9853 1086 01.2Gauge for chuck bushing 22mm (7/8”) hexagon shank Atlas Copco no. 3091 0038 00.3Use Atlas Copco no. 9090 0550 80 pressure gauge to test the water <strong>and</strong> air pressure.16© 2006 Atlas Copco Construction <strong>Tools</strong> AB | No. 9800 0680 71 | 2006-11-20
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