User's Manual

Repair
333347F 59
5. Remove air lines from relief valve (245) and air
motor (218) See F
IG . 31 on page 56.
6. Remove nuts (3) securing melter shield (27) in
place then remove melter shield. See F
IG . 31 on
page 56.
7. Remove air motor assembly. See F
IG . 31 on
page 56:
a. Remove retaining ring (239).
b. Remove dowel pin (238).
c. Remove three screws (240).
8. Use a flat head screwdriver and a rubber mallet to
break loose the retaining nut (235).
9. Use channel lock pliers to remove the retaining
nut (235).
10. Insert an allen wrench through the hole in the top of
the piston rod (223) to lift the piston rod (223) up out
of the manifold. This will also pull out the throat
u-cup (234) and throat bearing (233).
11. Replace Pump Inlet Housing Checks. See page
58.
12. Use a 1/2 in. drive ratchet without a socket to
remove foot valve (230) from bottom of melter outlet
manifold (203). See F
IG . 36, page 58.
13. Insert cylinder tool (1301) into bottom of melter out-
let manifold (203). Use a rubber mallet to gently
remove cylinder (216).
14. Remove and discard cylinder seals (217). See F
IG .
37.
Reassembly:
1. Apply grease to seals (217) then install new cylinder
seals (217) onto cylinder (216). See F
IG . 37.
2. Place female cylinder installation tool (1302) into
melter outlet manifold (203) to protect seals from
sharp threads. See F
IG . 38.
3. Use male cylinder installation tool (1303) to press
cylinder (216) into melter outlet manifold (203). If
necessary, use rubber mallet tap into place. See
F
IG . 38.
4. Use a 1/2 in. drive ratchet without a socket to install
and tighten foot valve (230) into bottom of melter
outlet manifold (203). See F
IG . 36, page 58.
5. Perform Replace Pump Inlet Housing Checks on
page 58.
6. Perform Reassembly portion of the Replace Throat
Seal, Throat Bearing, Piston Rod, Piston Seal,
and Piston Bearing procedure which starts on
page 56.
F IG . 37
ti20880a
217
216
217
1301
203
F IG . 38
ti21049a
203
217
216
217
1302
1303