The HATZ model 1B 30 is a governor type mechanical air filter having direct Diesel 4 stroke-cycle engine with air cooling systems, Its natural aspiration gives a rated output of 4,1 kW prp; 4,6 kW standby with 1 - Vetrical cylinder arrangement and 80 x 69 mm bore and stroke and 0,347 L displacement. Other features provide lube oil specifications of CCMC-D4-D5-PD2/API CD-CE-CF-CG/SHPD; compression ratio of up to 21,5. Fuel consumptions of 1,39 l/h on standby with full load lube oil consumption of 1% and total oil capacity of 1,1 L. Its tubular steel chassis has anti-vibration rubber shock absorbers.