Danuser 9000 Postmaster/SlabBlaster - Manual (Page 22)

22
Service
(continued)
STEP 5: With the Postmaster in a horizontal position, remove the head assembly.
STEP 6: If you are changing the collar only, then remove the bolts securing the collar to the
upper head assembly, and install the desired collar using the existing bolts.
Reinstall the head assembly with the collar into the Postmaster. If you are
changing the upper head assembly only, then remove the bolts securing the collar
to the existing upper head assembly, and install the collar onto the new head
assembly. Install the new assembly into the Postmaster. If you are changing the
complete upper head assembly with collar, then remove the existing head assembly,
and install the new assembly into the Postmaster.
STEP 7: After the upper head assembly has be reinstalled, start the vehicle, and slowly tilt
the Postmaster back to a vertical position.
STEP 8: Shut off the vehicle, and disconnect the hydraulic hoses. Route the hydraulic
hoses through the quick attach plate hose holder, and reconnect the hydraulic
hoses to the vehicle auxiliary hydraulics.
STEP 9: Lift the Postmaster hammer, and reinstall it in the Postmaster.
STEP 10: Ensure the safety catch is in place. The safety catch prevents the hammer from
sliding out of the Postmaster.
STEP 1: Remove the safety catch pin from the top of the frame. Insert a hook into the chain
links welded to the top of the hammer, and lift out the hammer with a hoist,
forklift, or another vehicle. Lay the hammer on the ground.
STEP 2: Disconnect the hydraulic hoses from the vehicle auxiliary hydraulics, remove them
from the quick attach plate hose holder, and reconnect the hydraulic hoses to the
vehicle.
The 8 inch collar assembly must be installed in the
Postmaster with the flat portion of the collar towards the
drive chain. Failure to install the collar correctly will cause
the pick-up link to catch on the collar and lift the collar
off the post. when this happens, the post will not be held
securely and may cause damage to the drive chain and
collar.
Frequent changing of post head collars could result in the lock nut (securing the
collar to the upper head assembly) to lose its effectiveness. Check for tightness
regularly and replace if necessary.
NOTE
CHANGING FROM A POSTMASTER TO A SLAB BLASTER
C A U T I O N
Do not tilt or operate the Postmaster/Slab Blaster without
the safety catch in place. The hammer could slide out of
the Postmaster/Slab Blaster and cause serious injury or
death.
w A R N I N G