Repair
74
333347F
d.
Torque pilot valve to 95-105 in-lb (10.7-11.9
N•m).
4.
Replace bottom pilot valve (511):
a.
Remove cover (29) and insulation (6).
b.
Use 10 mm socket to remove air motor pilot
valve (511) from air motor (218).
c.
Lubricate with grease and install new air motor
pilot valve (511).
d.
Torque pilot valve to 95-105 in-lb (10.7-11.9
N•m).
e.
Replace insulation (6) and cover (29).
Replace Air Valve
Disassembly (see F
1.
Close the bleed-type ball valve installed at the
system air inlet to relieve all air pressure in the
system.
2.
Turn main power switch OFF.
3.
Loosen clamp on air motor bracket (528) then
remove funnel assembly (61).
4.
Loosen upper hose clamp on rubber housing then
remove fill cap.
5.
Dispense until the fluid level in the melter is at or
below the honeycomb grid.
NOTE:
If a screw or air valve seal is dropped during this
procedure it could fall into the melter. Melter fluid level
must be below honeycomb grid before moving to next
step.
6.
Once the fluid level is low enough, close the
bleed-type ball valve installed at the system air inlet.
7.
Disconnect air hose and cable from the air motor.
8.
Use 10 mm socket to remove four screws (509)
securing air valve (512) to air motor (218).
9.
Remove air valve (512) and seal (507) then discard.
Reassembly (see F
. 57):
1.
Lubricate with grease then place new air valve
seal (507) onto air valve (512).
2.
Carefully place new air valve (512) against air motor
then thread in the four screws (509). Ensure the air
valve seal (507) stays in place by applying constant
pressure against the air motor.
F
IG
. 56: Bottom Pilot Valve
WLD
218
29
6
511
F
IG
. 57
507
512
509
218
Summary of Contents for 24T918
Page 16: ...Component Identification 16 333347F ...
Page 103: ...Accessories 333347F 103 ...
Page 129: ...Technical Data 333347F 129 ...