Scheduled Maintenance Programs: Implementing a scheduled maintenance program is essential for keeping your coal mining equipment in optimal condition. Develop a maintenance schedule that includes routine tasks such as filter replacements, hydraulic system checks, and electrical inspections.
[pdf] Turn the throttle lever gradually and drill at a slow speed until the hole is collared. The drill should be kept at right angles to the work until the hole is collared, then repositioned for angle drilling. Always apply sufficient down pressure to keep the tool from bouncing.
[pdf] While tool is disassembled, check the cleanli-ness of the valve and ensure cylinder ports are clear. Disassemble, check for broken piston, broken rifle bar or worn rifle nut. Check valve system for worn parts.If found, worn parts need to be replaced.
[pdf] 
