Vedeneyev M-14P, Maintenance Manual

Page: 215 / 381

ACCESSORY DRIVES - DESCRIPTION AND OPERATION
1. GENERAL
The present section describes engine accessory drives located in the rear cover.
The engine accessory drives and gear trains are shown in the kinematic diagram (Ref. Fig. 1).
The data on transmission ratios and directions of rotation of the drives are given in the Table .
Drive Designation of gear
Transmission
ratio relative to
Direction of rotation
Gearbox G, B, B, A 0.658 LH
Speed governor drive Yu, Zh, E, D 1.045 RH
Cam plate drive Yu, Zh, I, K 0.125 LH
Blower impeller drive
M, Sch, Z, L 8.160 LH
Magneto drive P, N (N.,) 1.125 LH
Generator drive
P, 0 2.5 LH
Compressor drive
P, S, U, T 0.9 RH
Oil pump drive
P. S 1.125 LH
Fuel pump drive
P, S 1.125 LH
Compressed air distributor drive
P, S, U, Ch, F, Ya 0.5 LH
Tachometer generator drive P, S, U, Gh, Ts, Sh 0.857 LH
Drives and gear trains of the gearbox, timing mechanism, blower are described in Sections 072.10.00,
072.30.00 and 072.40.00.
The crankcase rear cover mounts drives of the generator, two magnetos, oil pump, fuel pump, tachometer
generator, compressed air distributor and compressor.
The accessory drives are driven by a bevel gear of the crankcase rear cover drives.