Crane DEMING 4060 Series, Installation, Operation & Maintenance Manual

Page: 10 / 18

10
l. Apply light oil to the inside of the seal bellows and
to the shaft sleeve (14) then slide seal gland (251),
gland gasket (259) and rotating seal assembly
(89B) onto the shaft sleeve. See Figure 5.
m. Place seal retainer (230) on the shaft sleeve to the
premarked position and tighten set screw.
n. Place packing box cover (11) against frame (19), in
proper position, and attach seal gland (251) to
packing box cover with bolts and nuts (209) and
(210), tighten securely.
DOUBLE SEAL
o. Apply light oil to the outer surface of the stationary
seal seats and o-rings (89A) and press one seal
seat into seal gland (251) and the other seal seat
into the packing box cover (11). Slide seal gland
and gland gasket (259) onto the shaft.
(See Figure 6)
p. Apply light oil to the inside of the seal bellows and
shaft sleeve (14) and slide the rotating seat
assembly (89B) onto shaft sleeve.
q. Place packing box cover (11) against frame (19), in
proper position, and attach seal gland (251) to
packing box cover with bolts and nuts (209) and
(210). Tighten securely. Seal may be tested for
leakage by applying 20 pounds of water pressure to
the seal cavity of packing box cover.
ITEM No DESCRIPTION
11 Packing Box Cover
14 Shaft Sleeve
89A Shaft Seal - Stationary Seat
89B Shaft Seal - Rotating Assembly
209 Machine Bolt
210 Hex Nut
230 Seal Retainer
251 Seal Gland
259 Gland Gasket
ALL PUMPS WITH PACKING OR MECHANICAL SEAL
r. Place shaft gasket (38) against shaft sleeve (14)
and replace impeller key (32) in pump shaft keyway.
s. Spread a drop of Loctite #601 on the shaft and
mount impeller (2) on the shaft. Block the coupling
end of the shaft then lay a block of wood over the
impeller vanes and tap lightly on the block until
impeller is seated on the shaft.
t. Assemble the impeller screw o-ring (272), impeller
washer (270) and impeller washer gasket (30) onto
the impeller screw (26). Apply a drop of Loctite
#601 to the impeller screw and mount the assembly
on the end of pump shaft. Tighten securely.
u. Fig. 4160 Series - Clean wearing ring of casing (1)
of any rust or deposits then press new wearing ring
(7) into casing.
Fig. 4060 and 4160 Series - Place casing gasket
(73) on packing box cover (11) and mount casing
(1). Insert and tighten cap screws (212).
NOTE: Casing (1), packing box cover (11) and power
frame must be correctly aligned when reassembled. Be
sure rabbeted fl ange of packing box cover is fully seated in
power frame and that casing is aligned and fully seated on
packing box cover BEFORE tightening cap screws (212).
v. Adjust impeller clearance according to Section D
item 2.
w. Adjust gland pressure and lubrication packing
according to Section D.
x. Check all lubrication points listed in Section D
item 3.
y. Replace any tubing or outside piping to packing
box cover.
z. Mount pump on baseplate. Reassemble fl exible
shaft coupling and check for pump and motor
alignment according to Section B. Verify proper
rotation before placing pump in service.
Figure 5
Figure 6