LEVER 6P5251 - Caterpillar

Checking The 5P7366 Power Cable
(1) Use the 8S4627 Circuit Tester or 6V7070 Digital Multimeter (1) to check for continuity in each wire. This check should measure .000 or .001 on the 2K Ohm resistance range. (2) Check for short circuits between the two conductors. This check should measure OL (infinite Ohms) on the 2K Ohm resistance scale.Checking The 6V4823 Cable Assembly
(1) Use a 6V7070 Digital Multimeter (1) or a 8S4627 Circuit Tester to check for continuity in each wire (see schematic). This check should measure .000 or .001 on 2K Ohm resistance range. (2) Check for shorts between all wires. Do not use a 8S4627 Circuit Tester for this check. It will not find shorts with resistances greater than 18 Ohms.This check should measure OL (infinite Ohms) on the 2K Ohm resistance range.
SCHEMATIC FOR 6V4823 CABLE ASSEMBLYChecking The 6V9412 Switch Test Adapter
(1) Use a 6V7070 Digital Multimeter (1) or a 8S4627 Circuit Tester to check for continuity in each wire (see schematic). This check should measure .000 or .001 on 2K Ohm resistance range. (2) Check for shorts between all wires. Do not use a 8S4627 Circuit Tester for for this check. It will not find shorts with resistances greater than 18 Ohms.This check should measure OL (infinite Ohms) on the 2K Ohm resistance range.
SCHEMATIC OF 6V9412 SWITCH TEST ADAPTER5P7366 Power Cable Parts List
6V4823 Cable Assembly Parts List
6V9412 Switch Test Adapter Parts List
Removal Of 6V9400 Analyzer From Case
(1) Loosen four screws (1) 16 mm (.625") on left side of analyzer. Remove four screws (2) from right side of analyzer.(2) Lift right side of the panel up and to the right to permit the two channels on the left side of the analyzer to clear the vertical mounting rail of the case as shown above on the right.Changing Fuses
Blown fuses usually indicate one of three conditions:A. The 6V9400 Analyzer was connected to 240 Volt AC when the 115/230Volt switch was set for "115 V" operation.B. Circuit faults within the 6V9400 Analyzer. The fuses then blow to protect the analyzer from further damage.C. Abuse from incorrect connection of cables to the analyzer machine. If the replacement fuses blow too, the 6V9400 Analyzer should be returned to the supplier for service, or referred to an electronic technician for service.(1) Remove the 6V9400 from the case. See REMOVAL OF 6V9400 ANALYZER FROM CASE. (2) Locate the four fuses. F1 (1) and F4 (2) are 3 amp type AGC (8D8113) for DC operation. F3 (3) and F2 (4) are 1/2 amp type MDL slo-blo fuses for AC operation.Replacement Of 6V4957 Liquid Crystal Display (LCD) And 6V6970 Microcomputer.
(1) Remove the analyzer from the case; see page 29. (2) Remove both knobs (1). Remove both bushing nuts (2) and lockwashers. (3) Remove four nuts (3) and washers from the studs holding large (power) PC board (4).(4) Carefully lift large PC board (4) off the mounting studs. Remove four threaded spacers (5).(5) Carefully lift small PC board (6) from the panel. (6) Use a knife to