Vibration Test Equipment Used with T53, T55, and T63 Series Engines
a. Prior to opening the case, vent the case to atmos-
phere by turning the pressure relief valve one-half
connecting power to unit.
turn counterclockwise using a coin or a screwdriver.
When closing the case, reverse the procedure.
If power source receptacle does not have ground
b. Remove the vibration meter from the carrying
plug, install Grounding Adapter Part No. 171581
case and set power switch to OFF.
into power source receptacle and attach black
grounding lead of adapter to a ground point.
c. Connect ac power cord to a 115V ac power source.
Install vibration meter plug in receptacle of
d. Turn meter power switch on and allow one-half
If a power source to be used is 230V ac, refer
hour for temperature to stabilize within the meter