Fig. 26. Removing or Installing Door Striker Pin

Fig. 27. Location for Door Adjustments at Hinge Pillar

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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SERVICE MANUAL To locate code number on key switch, remove key switch mounting cap nut and detach key switch from instrument panel. The key switch cylinder can be replaced providing the regular key is used. REMOVE To remove key switch cylinder from switch body, place key in switch cylinder’ and insert a piece of stiff wire or rod 1.5 mm (1/16") dia. in the small hole behind cap nut in switch body. Turn key to left (accessory position) and press the cylinder retainer down with the wire. The switch cylinder can then be pulled out of switch body. INSTALL To install a new switch cylinder, simply push cylinder into switch body and turn to right ("ON" position) until the cylinder retainer snaps into place. Door lock cylinder replacement is by the complete assembly. Lock cylinder itself (tumbler unit) is not removable. If door lock replacement is required, lock cylinder assemblies should be replaced in pairs. If a replacement of key switch cylinder is necessary and the operator wants to use the original key, the tumblers on the new switch cylinder can be coded accordingly. This is accomplished by inserting original key in new cylinder (cylinder removed from body) and filing off the tumblers that protrude from cylinder. When making this change, be sure no burrs are left on tumblers and all filings are blown out with air. Apply a small quantity of powdered graphite to tumblers and reinsert cylinder in key switch body. IMPORTANT If keys are lost, switch cylinder must be drilled out using a 7.9 mm (5/16") drill, 12.7-19 mm (1/2-3/4") deep. This will permit tumblers to drop out and free lock. DOOR WEATHER SEAL A one piece rubber weatherseal is secured to cab door flange with plastic fasteners and provides a weather-tight seal around door when door is closed. REMOVE Pry up old weather seal at fastener locations and remove complete seal from cab door flange. INSTALL 1. Obtain new seal. 2. Be sure all old fasteners have been removed and door flange is free of dirt. 3. Place new weather seal into place on door flange and align fasteners over mounting holes. 4. Apply pressure to each fastener to secure weatherseal. DOOR STRIKER PIN Door striker pin (Fig. 26) mounted on lock pillar provides for positive engagement with the door latch assembly (Fig. 20). Striker pin removal and installation requires a special driver tool. Enlarged mounting hole in lock pillar permits adjustment. For complete details on striker pin adjustment, see "CAB DOOR ADJUSTMENT". Fig. 26. Removing or Installing Door Striker Pin 1. Lock Pillar 2. Door Striker Pin 3. Driver Tool CTS-4065 PRINTED IN UNITED STATES OF AMERICA Page 17

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