TM 10-3930-659-20 2-27. MULTIMETER (Con't). CAUTION Before performing a continuity test, always disconnect the forklift truck battery ground cable  and  the  circuit  to  be  tested.    Failure  to  follow  this  caution  may  damage  the multimeter. (4) Testing for Resistance.  Allowable resistance readings depend on circuit being tested.  Refer to the particular section dealing with that circuit or component for allowable readings. (a) Zero multimeter [see subparagraph (1)1. (b) Press OHMS FUNCTION switch (2). (c) Press LOWEST VOLTAGE/OHMS selector switch (6).  If test calls for ohms range other than RX1, set RANGE SELECTOR switch (5) to the required range. (d) Connect black and red probes (8 and 9) across circuit to be tested. (e) Read digital readout (7) and interpret the results as circuit resistance. TA706724 2-19