Numa Patriot RC50, Инструкции по уходу и обслуживанию

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Page 10
11/06/20
Patriot
®
RC50
•
With the large diameter of the check valve seat toward the backhead bore, insert the
check valve seat into the backhead.
• With the rubber end of the check valve facing the backhead bore, insert the check
valve into the backhead and over the small diameter of the check valve seat so it
meets with the check valve seat shoulder.
• Insert the check valve spring.
•
Install the collection tube o-rings into the inside diameter grooves of the feed tube.
Install the feed tube o-ring in the groove of the outside diameter of the feed tube.
• Insert the large diameter of the feed tube in the backhead so the pin holes on the feed
tube align with the pin holes of the backhead. As the feed tube contacts the check
valve spring in the backhead, apply just enough force to keep the pin holes aligned
while inserting the pins.
• Install the backhead with the check valve seat, check valve, check valve spring,
feed tube, and pins already installed into the backhead end of the case.
•
Oil the outside surface of the collection tube. Insert the collection tube through the
backhead, until refusal. Using a rubber mallet, tap on the collection tube until it
protrudes out of the chuck end. Using both hands, pull the collection tube down until
it stops.
CAUTION
THE O-RINGS WHICH SEAL AROUND THE COLLECTION TUBE WILL BECOME WORN
OVER TIME. DISASSEMBLY OF THE HAMMER WILL BE NECESSARY ON A PERIODIC
BASIS TO ENSURE THERE IS A SEAL AND AIR IS NOT LEAKING BY, CAUSING A
LOWER OPERATING PRESSURE.
CAUTION
WHEN CONNECTING THE RC HAMMER TO THE RC DRILL PIPE, MAKE SURE THE
CORRECT CONNECTOR TUBE IS SEATED PROPERLY BETWEEN THE COLLECTION
TUBE AND THE DRILL ROD.
•
Insert the bit retaining rings, with the o-ring installed, in the chuck end of the case.
• Install the o-ring into the outside diameter groove of the chuck located above the
shoulder.
•
Place the metering sleeve over the chuck and seat against shoulder of chuck.
• Thread the chuck into the case and hand tighten. The chuck shoulder should sit flat
against the bottom of the case.