Siemens PELTON & CRANE Light Fantastic II Installation Instructions Manual page 54

C. Measure (25/23/21/19 VAC) between points 5
and 6. If voltage is present, proceed to Section
3-11-D. If no voltage is present, wires in front
arm are broken and should be replaced.
D. Measure (25/23/21/19 VAC) between points 6
and 7. If voltage is present, proceed to Section
3-II-E. If no voltage is present, switch is defec-
tive and should be replaced.
E. Measure (25/23/21/19 VAC) between points 8
and 9. If voltage is present, lamp is defective
or contacts are corroded and should be re-
placed or oleaned. lf no voltage is present,
socket or socket wires are defective. Replace
both sockets.
F. Measure 120 VAC between points 10 and 11. If
voltage is present, proceed to 3-II-G. If no
voltage is present, proceed to 3-I-H.
G. Remove transformer and switch. Check conti-
nuity between L and 1, L and 2, and L and 3
with switch turned to H, M, L of disconnected
switch. Continuity proves switch is good and
indicates transformer is defective, or switch is
defective and transformer is good. Measure
resistance between terminals 1 and 2 (with
transformer disconnected), which should be
approximately 0.1 ohms. Infinite ohms indicate
bad transformer. Measure resistance between
white and red lead of disconnected trans-
former, which should be approximately 1 ohm.
Infinite ohms indicate a bad transformer.
H. For LFil, LFLII, LFWII (2) and LFWII (3), a
power problem exists which is external to the
light. (Check circuit breakers.) For LFCII or
LFCII-D, the problem could also be in wiring
through column. Measure voltage between
points 12 and 13. If 120 VAC is present, the
problem is in the wiring in column. If no voltage
It
TEST TRANSFORMER
A. Track Light
. Other Models
V. FOCUS LIGHT
NOTE: The lamp focus is factory set for an optimum
pattern 27" (68.6 cm) from the oral cavity.
This results in an excellent
pattern in an 18"
(45.7 cm) to 36" (91.4 cm) range from the
oral cavity. The lamp may be refocused for an
optimum pattern at other operating distances.
A. Turn two screws on front of light (Figure 2)
clockwise until both screws are tight. The pat-,
terns will now be partially overlapped as shown
in Pattern A, Figure 3.
B. Turn each screw counterclockwise equally one
turn at a time until the patterns are superim-
posed as shown in Pattern B, Figure 3.