User's Manual

Repair
58 333347F
Replace Pump Inlet Housing Checks
Disassembly (see F
IG . 35):
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 four bolts (246) and pump manifold (203)
from melter outlet.
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),
o-ring (229), and o-ring (231).
Reassembly (see F
IG . 35):
1. Install new o-ring (231), 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. Apply anaerobic thread sealant on threads of four
bolts (246) and connect pump to melter outlet.
Torque to 12-18 ft-lb (16-24 N•m).
Replace Pump Cylinder Seals and Piston Seals
Disassembly (see F
IG . 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 plastic shroud (27). See F
IG . 31 on
page 56.
F IG . 35
WLD
230
228
227
231
203
229
246
F IG . 36
WLD
218
235
233
234
233
224
226
222
230
217
217
216
239
203