1-28
Serv.
Max.
.020 .020 .020 .020 .020 .020 .020 .020 .020 .020 .020 .020 .012
.015 .020
.010 .020 .020 .020
SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES
SECTION IV BACKLASH
Ref. Ref. Chart Nomenclature Dimensions Clearances
Mfr. Mfr.
New Old Min. Serv. Min. Serv.
& Max. & Max.
Max. Max.
819 973 S-T-AF Crankshaft Gear and AN Fuel .004
973 (DUAL MAGNETO) Pump Idler -Backlash .015 .020
820 974 T-AF Hydraulic Pump and Crankshaft Idler -Backlash .004 .015 .020
821 676 G-J-S Propeller Governor Drive and
Crankshaft Idler -Backlash .004
(Rear Governor) .020
822 -G2-T-AF S2-S4-S6- Propeller Governor Idler and Camshaft -Backlash (FrontGovernor) .004 .015 .020
823 669 G1-G2-S2-S4-S6-T-AF S2-S4-S6- Propeller Governor Drive and Idler -Backlash (Bevel Gears) (Front Governor) .004 005 .015
824 669 BD-BE Propeller Governor Drive and
Camshaft -Backlash (BevelGears) (Front Governor) .003 .011 .015
825 550 D Crankshaft Timing Gear and .004
Camshaft Gear -Backlash .015 .020
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