Numa Patriot 180, Инструкции по уходу и обслуживанию

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09/19/16 Page 5
Patriot
®
180
SECTION II
MAINTENANCE
DISASSEMBLY
•
If at all possible, the backhead and chuck should be broken loose on the drill rig; this
is much easier than trying to do so after the drill has been removed from the drill rig.
If not possible, see hammer breakout drawing Figure 2-1.
CAUTION
USE CAUTION WHEN HANDLING DOWN THE HOLE HAMMER PARTS. NUMA HAMMER
PARTS ARE MANUFACTURED FROM HARDENED, HEAT TREATED MATERIALS. DROPPING
OR STRIKING THESE PARTS MAY CAUSE SEVERE DAMAGE. STRIKING THE HAMMER
PARTS WITH HAMMERS, CROWBARS OR LIKE INSTRUMENTS WILL VOID THE WARRANTY.
•
Maintenance should be performed in a clean environment.
•
Tools needed: hammer stand, 14-1/2" (368 mm) "J" or fork wrench (possibly
incorporated in the hammer stand), overhead crane or lift truck, pulldown visetong
with a 15-1/2" (394 mm) diameter capacity or a self contained power wrench capable
of 150,000 foot pounds (20,700 Kgm) of torque, rubber mallet, 2" (51 mm) diameter
brass rod or mild steel rod 3 to 5 feet (1 m to 1.5 m) long, a drift pin, a small screwdriver,
a pry bar, and a nylon strap capable of lifting 5,000 lbs.
• Clean the outside of the hammer. This will insure a good surface to clamp on.
Hammer Breakout Drawing
Figure 2-1
Pulldown Visetongs
Petol No. VTDA120
Force Direction Required:
15,000 - 25,000 lbs.
(6,810 - 11,350 Kg.)
Blocking to
height of stand
Hammer stand and wrench
combination, structural steel,
I-Beam, weld construction
bracing to suit.