Welch Allyn LS135, LS150 User Manual

No. 44300 No. 44500 No. 44302 No. 44502 No. 44303 No. 44503 No. 44304 No. 44504 No. 44306 No. 44506

Welch Allyn, Inc. 4341 State Street Road P.O. Box 220 Skaneateles Falls, NY 13153-0220 USA

LS135/LS150 EXAM LIGHT

LA REPLACEMENT INSTRUCTIONS

Telephone: (315) 685-4560 Fax: (315) 685-3361

Printed in U.S.A. Part No. 443148 Rev. C

WARNING: LAMPS OPERATE AT A HIGH TEMPERATURE. DO NOT ATTEMPT TO REPLACE LAMP

LE HOT. WAIT UNTIL LAMP IS COOL.

WHI

Lamp Replacement

1. Exposing the Lamp (See Figure #1)

• Turn power switch to the off (“0”) position and unplug power cord from outlet

• Rotate Light Assembly so that the lamp points up (towards ceiling).

• Completely loosen screw in Lamp Housing and lift Lamp Housing to expose lamp.

2. Freeing the Lamp and Lamp Socket (See Figure #2)

• Unclip the Lamp Retaining Wire from the Lamp Housing by pushing on wire “ears” towards center and swing out as shown to free the Lamp and Lamp Socket.

3. Removing the Lamp Socket (See Figures #3 and 4)

• Hold the Lamp reflector by its outer rim. Grasp the white sides of the lamp Socket as shown (Figures 3 and 4) pulling on the Lamp Socket while rocking it

slightly to remove it from the Lamp. Do not pull on Lamp Socket Wires.

4. Install the new Lamp

• Verify that the lamp number located on the metal plate inside the Light Assembly (Figure 2) matches the replacement lamp number.

• Replace Lamp and reattach Lamp Retaining Wire to Lamp Housing.

• Align Lamp pins to Lamp Socket holes and reconnect Lamp Socket.

• Reinstall Lamp Housing onto Light Assembly by first engaging Lamp Housing

tab (opposite screw) into Light Assembly. Fully tighten screw.

• Reconnect Power cord and verify Lamp operation.

Figure 1

Figure 3

Lamp Housing

Light Assembly

Figure 2

Replacement Lamp # on this Plate

Lamp Retaining

Lamp

Lamp Socket

Figure 4

Lamp Socket Wires