PHQ250JHMAVL Jackleg MK 1 Parts and Repair Manual PDF
PHQ250JHMAVL Jackleg MK 1 Parts and Repair Manual PDF PHQ250JHMAVL Jackleg MK 1 Parts and Repair Manual PDF
Page 10 Version 200711
Page 11 Maintenance Procedures The maintenance of all rock drills follows the same routine. First clean the exterior of the drill then make a quick visible check to look for items requiring a minor repair that could have shut the drill down before disassembly of the drill. (EG worn chuck bushing, broken water tube, air connection missing or damaged, water valve loose, water connection damaged or missing, side rod nut missing or broken side rod). If no visible problem exists connect the air line with the leg still connected to the drill and start the drill up on low throttle if possible. Look into the front end to check the end of the piston for rotation and check the action of the leg using the control handle. Listen for leaking air. If the problem is still not evident shut the drill down disconnect the air line and disassemble the drill examining the parts as they are removed. Clean the parts, inspect each part in detail, replace damaged parts, rebuilt and test the drill. Most drill shops lack sophisticated measuring equipment to accurately gauge wear on components. An experienced drill doctor relies on his experience to visually check parts for wear and to test for “fit, feel, and function” to determine if the parts should be replaced or not. Parts can be assessed using simple, but effective work shop practices and knowledge gained over years of experience. NOTE: After unit is completely disassembled and prior to full inspection all components must be thoroughly cleaned in a suitable pump driven solvent wash tank, and blown clean. Disassembly Procedures Clevis Body 1. Once the drill is cleaned place it upside down in the chain vice on work bench gripping the cylinder. 2. Using an adjustable wrench, unscrew the clevis body spindle nut (D1982). If it is tight compress the spindle spring (C1571) by inserting a screw driver between lock washer (C1519) and spindle nut. 3. Remove the spindle nut, spring, lock washer and trust washer. Remove the keys from the stem end of the spindle Version 200711
- Page 1 and 2: PRINTED 2/12/2008 PHQ250 Jackleg Pa
- Page 3 and 4: Certificate of Performance Page 3 T
- Page 5 and 6: Page 5 NOTE: PHQ continuously updat
- Page 7 and 8: Rockdrill Repair Shop The rock dril
- Page 9: Page 9 Version 200711
- Page 13 and 14: Page 13 Version 200711
- Page 15 and 16: Page 15 17. Remove the operating ha
- Page 17 and 18: Page 17 31. Unscrew the air bend nu
- Page 19 and 20: Page 19 41. Examine all the parts f
- Page 21 and 22: Page 21 54. Once the valve plug (A7
- Page 23 and 24: Front Cylinder Assembly Inspection
- Page 25 and 26: Page 25 72. To replace the chuck bu
- Page 27 and 28: Assembly Procedures 77. To install
- Page 29 and 30: 88. Check to insure the proper fit
- Page 31 and 32: Page 31 101. Fit the clevis body (A
- Page 33 and 34: Page 33 PICTURE SHOWS A STOPER DRIL
- Page 35 and 36: Page 35 PHQ250 Anti-Vibration Jackl
- Page 37 and 38: Page 37 Troubleshooting Guides Prob
- Page 39 and 40: Troubleshooting Guides Problem Prob
- Page 41: Page 41 Troubleshooting Guides Prob
Page 11<br />
Maintenance Procedures<br />
The maintenance of all rock drills follows the same routine. First clean the exterior of the drill<br />
then make a quick visible check to look for items requiring a minor repair that could have shut<br />
the drill down before disassembly of the drill. (EG worn chuck bushing, broken water tube, air<br />
connection missing or damaged, water valve loose, water connection damaged or missing, side<br />
rod nut missing or broken side rod). If no visible problem exists connect the air line with the leg<br />
still connected to the drill <strong>and</strong> start the drill up on low throttle if possible. Look into the front end<br />
to check the end of the piston for rotation <strong>and</strong> check the action of the leg using the control<br />
h<strong>and</strong>le. Listen for leaking air. If the problem is still not evident shut the drill down disconnect<br />
the air line <strong>and</strong> disassemble the drill examining the parts as they are removed. Clean the parts,<br />
inspect each part in detail, replace damaged parts, rebuilt <strong>and</strong> test the drill. Most drill shops lack<br />
sophisticated measuring equipment to accurately gauge wear on components. An experienced<br />
drill doctor relies on his experience to visually check parts for wear <strong>and</strong> to test for “fit, feel, <strong>and</strong><br />
function” to determine if the parts should be replaced or not. <strong>Parts</strong> can be assessed using simple,<br />
but effective work shop practices <strong>and</strong> knowledge gained over years of experience.<br />
NOTE: After unit is completely disassembled <strong>and</strong> prior to full inspection all components<br />
must be thoroughly cleaned in a suitable pump driven solvent wash tank, <strong>and</strong> blown clean.<br />
Disassembly Procedures<br />
Clevis Body<br />
1. Once the drill is cleaned place it upside down in<br />
the chain vice on work bench gripping the cylinder.<br />
2. Using an adjustable wrench, unscrew the clevis<br />
body spindle nut (D1982). If it is tight compress<br />
the spindle spring (C1571) by inserting a screw<br />
driver between lock washer (C1519) <strong>and</strong> spindle<br />
nut.<br />
3. Remove the spindle nut, spring, lock<br />
washer <strong>and</strong> trust washer. Remove the<br />
keys from the stem end of the spindle<br />
Version 200711
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