Repair
333347F
73
6.
Install electrical enclosure front access door.
Replace Air Control Gauge
Disassembly (see F
1.
Turn main power switch OFF.
2.
Close the bleed-type ball valve installed at the sys-
tem air inlet to relieve all air pressure in the system.
3.
Remove two screws (8) then slide air control
assembly (9) out from electrical enclosure (1) so the
back of the gauges are exposed.
4.
Remove two nuts (403a) securing gauge (403) in
place then remove bracket (403c).
5.
Place one small crescent wrench on the brass part
of the gauge then use a second small crescent
wrench to remove the air fitting (403b).
6.
Remove air gauge from panel.
Reassembly (see F
. 54):
1.
Slide new air gauge into panel and slide the bracket
onto the back of the gauge. Install air fitting onto the
gauge by hand, do not tighten yet.
2.
Install bracket (403c) then install two nuts (403a)
finger tight.
3.
Place one small crescent wrench on the brass part
of the gauge then use a second small crescent
wrench to tighten the air fitting (403b).
4.
Orient gauge as desired then tighten two
nuts (403a) to secure gauge (403) in place.
5.
Slide air control assembly (9) into place then use
two screws (8) secure to electrical enclosure.
Air Motor
Replace Pilot Valve
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.
Replace top pilot valve (511):
a.
Use crescent wrench to remove the rod cover
(C).
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).
F
IG
. 54
WLD
403
8
9
403a
403b
403c
NOTICE
In the following step, do not overtighten the two
nuts (403a). Overtightening may cause the gauge to
break.
F
IG
. 55: Top Pilot Valve
WLD
511
218
C
Summary of Contents for 24T918
Page 16: ...Component Identification 16 333347F ...
Page 103: ...Accessories 333347F 103 ...
Page 129: ...Technical Data 333347F 129 ...