The oil filter (Fig. 1) is centrifugal, with a jet drive, and is included in the lubrication system in series
Checking the ZIL-131 pneumatic drive for serviceability
Before driving, make sure that the pressure in the system is not lower than 4.5 kg/cm 2
The vehicle's electrical system is single-wire, with a nominal voltage of 12 V; the negative terminals of the current sources are connected to the body ("vehicle ground")
The non-contact shielded ignition system is installed on the ZIL-1Z1 car and its modifications
Symptom - Remedy
The generator does not provide charging current
Malfunction in the circuit generator - relay-regulator - battery or in the ground circuit - Find damage in the wiring or contacts and eliminate it:
The combined brake valve consists of two sections combined in one housing and is designed to control the pneumatic drive of the brakes of the tractor and trailer (semi-trailer)