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16
Instruction Manual
7. To install packing, coat each piece with
recommended lubricant and install in order
shown in
figure 5
. Place each piece into stuffing
box individually, insuring each piece is firmly
seated. Automatic packing should be installed
with lips facing forward; if rings are split, locate
the joints so they are not in line.
8. Install No. 427 gland follower with it No. 428 liner
in place. Install follower with its bore lip facing
away from packing.
9. Screw No. 430 gland cap loosely onto liquid
end.
10. To replace thrust washer, adjust pump stroke
length setting to 0%. Unscrew No. 245 floating
plunger nut from crosshead and remove
plunger assembly. Replace worn rings if
necessary.
11. With plunger installed, carefully slip liquid end
back over plunger and onto pump body with
grease fitting up and secure with washers
and bolts. Observe to flow direction arrows
stamped onto No. 9001 ball check cartridge
assembly; arrows should both be pointing
up.
SECTION 5 - MAINTENANCE INSTRUCTIONS-LIQUID END 7/16” AND 5/8” DIAMETER PLUNGERS
12. After new packing is installed and liquid end
is mounted on pump, the new packing must
be broken in to develop a reliable sealing
surface and insure long, trouble free packing
life. Tighten gland cap 1/4 turn past finger tight
and hold packing under this compression for
at least 10 minutes. While under compression,
inject a small amount of recommended
lubricant into fitting provided.
13. Loosen gland cap and retighten 1/6 past finger
tight.
14. Start pump at 100% stroke length but without
pressure load. It is permissible to operate liquid
end dry, or to pump clear fluid to atmospheric
pressure. Run for about 1/2 hour.
NOTE:
Often, compression type packings will expand
due to frictional heat generated during initial
break-in. If gland cap becomes uncomfortably
hot to touch during break-in, gland cap should
be loosened slightly (by less than 1/6 turn) to
relieve excessive frictional force.
15. At the end of this break-in period, put pump
into full operation against normal operating
load.
Содержание MILROYAL D
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