Repair
56 3A2347ZAA
Replace Pump Inlet Housing Checks
Disassembly (see FIG.31):
1. Flush the system. See page 34.
2. Close the bleed-type ball valve installed at the sys-
tem air inlet to relieve all air pressure in the system.
3. Turn main power switch OFF.
4. Remove Melter Assembly. See page 58.
5. Use a 1/2 in. drive ratchet without a socket to
remove foot valve (230) from bottom of melter outlet
manifold (203).
6. Remove and discard seat (228), ball (227), and
o-ring (229).
Reassembly (see FIG.31):
1. Install new o-ring (229), seat (228), and ball (227)
then use a 1/2 in. drive ratchet without a socket to
install and tighten foot valve (230) onto melter.
2. Install Melter Assembly. See page 59.
Replace Pump Cylinder Seals and Piston Seals
Disassembly (see FIG.27):
1. Flush the system. See page 33.
2. Close the bleed-type ball valve installed at the sys-
tem air inlet to relieve all air pressure in the system.
3. Turn main power switch OFF.
4. Remove plastic shroud (27). See FIG.27on
page 54.
FIG.31
ti20749a
230
228
227
254
229
257
201
FIG.32
ti21048a
218
235
233
234
233
224
226
222
230
217
217
216
239
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