Ford ES — T21-Hl (fused)
For the Ford ES.
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Procedure
- 3. Open switch in 120 VAC supply to VARIAC.
- 4. Plug VARiAC into 120 VAC source.
- 5. Proceed with checkout according to steps in
Specs & torque values
- TABLE 1. VOLTAGE REGULATOR CHECKOUT
- V i AC INPUT VOLTAGE
- V2 DC OUTPUT VOLTAGE
Source: manual:0900-0335_Service Manual Ford Engine Detector I1_198207.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.