This is one of four manuals I have downloaded recently.
Purchase was very straight forward and the authorising email arrived in about 4 hours.
The quality of the scan is good. Print is clear and square to the page edges.
Exactly as advertized. High quality digital copy of the Nak 610 user manual. Easy download and access. Highly recommended.
Text excerpt from page 22 (click to view)
Instructions for the Installer
Commissioning
When the hob has been fully installed it will be necessary to check the minimum flame setting. To do this, follow the procedure below. 1) Turn the gas tap to the MAX position and ignite. 2) Set the gas tap to the MIN flame position then turn the control knob from MIN to MAX several times. If the flame is unstable or is extinguished follow the procedure below. Procedure: 1) Re-ignite the burner and set to MIN. 2) Remove the control knob. 3) To adjust, use a thin bladed screwdriver and turn the adjustment screw (see diagram) until the flame is steady and does not extinguish, when the knob is turned from MIN to MAX. Repeat this procedure for all burners.
Minimum adjustment screw
Pressure Testing
1) Remove left hand pan support and front left burner cap and crown. 2) Fit manometer tube over the injector. 3) Turn on the burner gas supply and ignite another burner supply. The pressure reading should be nominally 20mbar and must be between 17 mbar and 25mbar. 4) Turn off the burner supplies.