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SAFETY WALK 50 1C3922 - Caterpillar



1C3922 SAFETY WALK 50 Caterpillar parts SAFETY
Rating:
51
Alternative (cross code) number:
CA1C3922
1C-3922
1C3922
Caterpillar 1C3922 SAFETY WALK 50

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(D) Replacement Of Front Panel Touch Switch
1. Remove the rear cover and circuit board as shown on page 19.2. Use a small screwdriver to lift up on one corner of panel (1). Peel off the touch switch panel.3. Clean front cover (2) with a mild detergent and water to remove the dirt and oil film. Make sure the front cover is completely dry before installing the new touch switch panel.
Do not use aromatic hydrocarbons or chlorinated solvents for cleaning the multitach case. These chemicals will cause damage to the case.
4. Peel off the middle section of the paper that protects the touch panel adhesive. Insert the touch panel connector through slot (A) on the front cover. Put the windows of the touch panel in alignment with holes (B) on the front cover; press the center section of the touch panel to the front cover. Remove the remainder of the protective paper, and press the panel to the front cover. It may be necessary to cut a small section from the bottom of the touch panel in order to align the windows in the touch panel with the holes in the front cover.(E) Removal Of Display Assembly
1. Remove the rear cover and circuit board as shown on page 19.2. While holding display assembly (1) around the edges, use a small screwdriver to remove two screws (2). Remove the display assembly from the printed circuit board. Be careful not to touch the display except at the edges.3. If flexible conductors [zebra strips] (3) are to be removed, use tweezers to carefully remove them from the slots in the display bracket. Do not touch the flexible conductors; skin contact can leave oil on the conductors.(F) Cleaning The Display Assembly
1. The LCD's can be cleaned by gently wiping them with a soft c cloth. IMPORTANT: Rubbing the LCD too hard can remove the contacts deposited in the glass.2. The flexible conductors (zebra strips) can be cleaned by dusting them with a camel's hair brush. If grease or fingerprints are on the conductors, the conductors may be washed with clean alcohol, and then air dried. Do not wipe the flexible conductors with any material that could leave lint or other deposits on the flexible conductors. 3. Contacts (1) on the circuit board can be cleaned with a pencil eraser.(G) Installation Of Display Assembly
1. Put display bracket (1) in position on the printed circuit board. Use tweezers to carefully position flexible conductors (2) in slots (A) of bracket (1).2. Being careful to touch display (3) at the edges only, hold the display to the light and observe the numbers and decimals "8.8.8.8". Put display (3) in position on bracket (1) so the decimals are at locations (B).3. Install display cover (4) and two screws (5). Make sure the screws are tightened evenly so the display and flexible conductors make good contact. Install the printed circuit board and rear cover. If the display does not operate correctly after assembly of the multitach, press the display


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