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Safety, Operation and Maintenance Manual-September 30, 2019
Fig.5-8 Lubrication Point
Daily maintenance for hydraulic cylinder
1. Check the lubrication on joint bearings on
both ends of hydraulic cylinder daily. Add
grease every week (or every 110 hours).
2. Visually check for cracks of various
structural elements for hydraulic cylinder.
Immediately repair or replace when
necessary.
NOTICE
Risk of corrosion damage in
corrosionsupporting environments! The
tasks specified below must be carried out
without fail.
3. Apply hydraulic oil to the piston rod or
retract/extend the piston rod several times
once or twice a week.
4. Before a longer standstill, preserve piston
rods with an acid-free grease.
NOTICE
Risk of causing damage to the piston
rods! Do not clean the piston rod with
high pressure water gun, sharp tools,
caustic lye, or an abrasive.
Checking hydraulic cylinder for tightness
1. Check for looseness of hydraulic joints
connecting the cylinder before and after each
working shift. If loose, tighten immediately.
2. Check for oil leakage of hydraulic cylinder
before and after each shift. Replace damaged
elements when necessary.
3. If barrel is damaged, replace hydraulic
cylinder when necessary (if the hydraulic
Maintenance SR400R Rotary Drilling Rig
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