Vedeneyev M-14P, Maintenance Manual

Page: 278 / 381

TO M-14P MS TASK CARD No. 205
MS ITEM
PROCEDURE
Adjustment at Main Ratings
OPERATIONS AND TECHNICAL REQUIREMENTS CORRECTIVE
ACTIONS
CH
ECKED BY
1. Check engine operation at all ratings on the initial adjustment starting from the take-off
rating (Ref. 072.00.00, Task Card No. 202),
NOTE: If engine operates poorly at separate ratings, adjust the carburetor.
2. Adjust fuel consumption at take-off and nominal ratings using the following procedure:
(1) Unlock and undo suction jet plug (2) (Ref. Fig, 202). (2) Select and replace the auction
jet.
UO'JE: It ia allowed to install jet, dia. 1.3 to 2.0 mm. Increasing the jet diameter leans out
the mixture, decreasing it, enriches the mixture. The jet diameter change of 0,05 mm changes
specific fuel consumption at take-off rating for 2 to 5 g/hp-h.
(3) Install and, lock suction Jet plug (2).
3. Adjust the engine in cruise rating II using the following procedure: (1) Unlock metering
needle adjustment screw (4) (Ref. Fig. 201).
(2) Turn adjustment screw (4) to the required, aide to obtain the desired fuel consumption*
NOTES: 1. Adjust -the carburetor on the shutdown engine. Rotating the shaft clockwise
enriches the mixture and vice versa,
2, Turn the metering needle screw up to the limit stops in either direction from the initial
adjustment setting.
3. The adjustment range to stop is eight clicks. One click of the metering needle
adjustment shaft changes fuel consumption from 4 to 8 g/hp'h.