LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 1985 >> Stanza GL, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Testing >> Power Brake Unit Test >> Operational Test

Operational Test

  1. Connect oil pressure gauge to brake line at connection on master cylinder. Install pedal force gauge on brake pedal. Start engine and increase engine speed until vacuum gauge reaches 19.69 in. Hg.
  2. Hold steady vacuum pressure, and measure oil pressure with respect to pedal operating force. Replace power brake unit if test results are not as specified in chart. See Fig 1 .
Fig 1: Power Brake Booster Operational Test Chart Check the power unit and compare specifications to the chart before replacing the unit.
G50044