Maintenance - SPX Hankison Trip-L-Trap 505 Instruction Manual

VI. MAINTENANCE
A. Regular maintenance of the condensate
discharge drain is recommended. Flush
out accumulated sludge and dirt by
opening manual drain valve about once a
month.
B. Disassemble and service at least once a
year. Drains are designed to operate at one
discharge per minute for one year before
servicing is required. Operation at more
that one discharge per minute may require
more frequent servicing. (NOTE: Before
starting the servicing procedure, make sure
you have a Repair Parts Kit on hand).
1. Close valve ahead of drain.
2. Depressurize drain by opening manual
drain valve (31).
3. Disconnect drain lines.
4. Figure 7 - Remove nuts (28) and bolts
(27) and separate top and bottom shell
assemblies. Remove seal ring retainer
(24) and case seal ring (29). Figure 6
illustrates o-ring and ring retainer for
carbon steel models.
5. To rebuild drain mechanism, refer to
Figure 7.
a. Remove six screws (14) from
piston cylinder (13) and remove
cylinder.
4
b. Remove nut (19) and lock washer
(11) from bottom of valve stem
assembly. For carbon steel models
remove piston disc (9 & 10), piston
seal (8), and key washer (7) from
valve stem assembly. For stainless
steel models piston is a single
piece.
c. Remove valve stem assembly (3)
from valve body (2) by lifting valve
stem assembly upwards.
d. Remove retainer clip (36) and pivot
pin (17) and lift float arm assembly
(15) off of valve stem assembly (3).
e. Remove pilot valve screw assembly
(18) from float arm assembly and
replace with a new assembly from
the repair parts kit. Reassemble
float arm assembly to valve stem
assembly using new pivot pin and
retainer clip from repair parts kit.
f. Remove valve sleeve (5) from valve
stem assembly and replace valve
disc (4) with new disc from repair
parts kit.
CARBON STEEL MODELS
FIGURE 6
g. Replace sleeve seal ["V" ring] (6)
on valve sleeve making sure "V"
shape is in the same position as
shown in Figure 7 - Detail A on
drawing.
h. Reassemble valve sleeve to valve
stem assembly as shown in
drawing . Lubricate sleeve seal
with lubricant supplied with repair
parts kit or silicone grease. Insert
complete valve stem assembly
into valve body. On models 506SS
make sure rod on valve stem
assembly is inserted into hole on
inside of shell as shown in Figure
6 - Detail C.
i. Reassemble piston, and piston seal
["V" ring] (8) using new parts from
repair parts kit. On stainless steel
models re-use the original stainless
steel piston disc.
j. Reassemble key washer (7), piston
assembly, lock washer (11), and
nut (19) to valve stem assembly.
Make sure "V" shape of piston seal
is in the same position as shown
in Figure 8 - Detail B and that the
key on the key washer is in the
hole (37) directly opposite drain
connection on valve body.
29
CASE SEAL
O-RING
24
SEAL RING
RETAINER
LOWER
26
BOTTOM
OF SHELL