NX
To set the HLX or AF2 nozzle-to-head position loosen the set
screw allowing the head assembly to be moved forward and
backward. Set the gauge against head as shown in Figure 7.
Move the head assembly until it makes contact with the nozzle
face and tighten set screw.
The V head utilizes a two piece adjusting plate. To set the "Z"
dimension (1-3/4"), fi rst place the adjusting plate in the 0 posi-
tion and tighten the mounting screw. Loosen the acorn nut on
the second plate (and the spline nut, see Figure 9), to permit
free nozzle line movement.
Place the gauge edge against the leading edge of the head,
and align the
C
mark with the end of the conic shroud shown
This gauge can also
be used to check
and set the proper
gap between the AFII
motor and the blower
wheel (0.060") see
Figure 12.
For L heads with straight shroud
, set the "Z" dimension
(1-3/8") by placing the gauge edge on the leading edge of
the head, and aligning the
S
pointer mark with the end of the
straight shroud.
For L heads with conic shroud
, set the "Z" dimension (1-
Figure 12.
Figure 11.
Figure 9.
Figure 10.
Figure 8.
Figure 7.
NX
N
X
N
X
N
X
N
X
Figure 6.
The "Z" or zero dimension is important because it locates the
nozzle for the precise relationship with the combustion head.
To set the "Z" dimension for FBX and F heads, position the
gauge as shown in Figure 6 and loosen the nozzle line elec-
trode assembly so that it can be moved forward or backward in
the air tube until the nozzle becomes fl ush against the gauge.
Tighten the nozzle line escutcheon plate screw to lock this "Z"
dimension securely.
in Figure 10.
Tighten the acorn
nut (this will not
require further
adjustment).
To adjust the
head assembly to
the desired head
setting, loosen
the adjusting
plate screw (see
Figure 9) and
move the adjust-
ing plate forward
to the required
setting. Check
the appliance
label/manual for
correct settings.
Tighten the
adjusting plate
screw and spline
nut.
This gauge can be used to check the AFII fi ring pin stop screw
lengths (see Figure 11).
To check, place the bot-
tom edge of the fi ring pin
head against the edge of
the gauge and read the
number indicated on the
gauge at the end of the
pin. This number should
be the same as the
number stamped into the
head of the fi ring pin.
FBX and F head "Z" Setting
HLX or AF2 (Similar with L and V Heads)
L head "Z" setting
V Head "Z" Setting & Adjusting Plate Setting
AFII Firing Pin Length
AFII Motor and Blower Wheel
3/4") by placing
the gauge edge
on the leading
edge of the head,
and aligning the
C
pointer mark
with the end of
the conic shroud.
(See Figure 10.)
