Danuser 9000 Postmaster/SlabBlaster - Manual (Page 19)

CHECK FOR CLEAN HYDRAULIC OIL
The majority of all hydraulic component failures are caused by contamination of the
hydraulic oil. At all times, keep dirt and other contaminates from entering the hydraulic
system during connecting and disconnecting the hydraulic system. Always use dust caps
and plugs on all quick disconnects when not in use.
CHECK ALL HYDRAULIC HOSE ASSEMBLIES
Check for cracked or brittle hoses. Replace hoses immediately if cracked or brittle.
Replacement of hoses before failure will prevent loss of hydraulic oil, hydraulic oil
contamination, and component damage caused by cavitation.
CHECK ATTACHMENT AND ALL ACCESSORIES
Check all bolts and fasteners for tightness. Visually inspect the attachment for damage.
Visually check the drive chain for alignment. Check the flow control mounting bolts for
damage or breakage, and replace if necessary. (Repeated bottoming out of the attachment is
the only cause of damage to the mounting bolts. If mounting bolts are damaged or breaking,
check the complete attachment for structural damage and review operating procedures.)
CHECK RUBBER CUSHION
Visually check the rubber cushion for damage and wear. (Repeated bottoming out of the
unit is the only cause of wear or damage to the rubber cushion. If the rubber cushion is
showing wear or damage, check the complete attachment for structural damage and review
operating procedures.)
GREASE ZERKS
Grease the zerks on each of the 4 bearings. Grease the zerks on both ends of the Grapple's
pivot linkage.
LUBRICATE ATTACHMENT
Lubricate the hammer rails. Lubricate the drive chain and chain coupling with a high
quality commercial chain lubricant.
CHECK ATTACHMENT AND ACCESSORIES
Visually inspect the nylon guide plate for wear. Replace the nylon guide plate if the drive
chain is hitting the flathead socket capscrews. Check the bolts on the Postmaster upper head
assembly for tightness.
DAILY
Maintenance
EVERY 40 HOURS
19