User's Manual

Repair
3A2347T 53
Replace Pump Inlet Housing Checks
Disassembly (see F
IG . 31):
1. Flush the system. See page 31.
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 55.
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 F
IG . 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 56.
Replace Pump Cylinder Seals and Piston Seals
Disassembly (see F
IG . 27):
1. Flush the system. See page 30.
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 F
IG . 27 on
page 51.
F IG . 31
ti20749a
230
228
227
254
229
257
201
F IG . 32
ti21048a
218
235
233
234
233
224
226
222
230
217
217
216
239