Gravely 915146 ZT 34 (SN 035000 +) 915148 ZT 42 (SN 035000 +) 915150 ZT 50 (SN 035000 +) 915168 ZT 34 CARB (SN 035000 +) 915170 ZT 42 CARB (SN 035000 +) 915178 ZT 42 Kohler (SN 035000 +) 915180 ZT 50 Kohler (SN 035000 +) 04758300 4/14 manual 3

MODELS

Domestic

Model 915146 (ZT 34)

Briggs & Stratton with 34” Mower Serial No. 035000 and up

Model 915148 (ZT 42) Kawasaki with 42” Mower Serial No. 035000 and up

Model 915150 (ZT 50) Kawasaki with 50” Mower Serial No. 035000 and up

Model 915168 (ZT 34 CARB) Briggs & Stratton with 34” Mower Serial No. 035000 and up

Model 915170 (ZT 42 CARB) Kawasaki with 42” Mower Serial No. 035000 and up

Model 915178 (ZT 42 Kohler) Kohler with 42” Mower Serial No. 035000 and up

Model 915180 (ZT 50 Kohler) Kohler with 50” Mower Serial No. 035000 and up

TABLE OF CONTENTS

DECALS

Decals – Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Decals – Style . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

MAIN FRAME AND TRANSAXLES

Frame, Hood, Fenders, Casters and Tires. . . . . . . . . 6 Seat and Seat Support. . . . . . . . . . . . . . . . . . . . . . . 10 Transaxle, Dump Valves and Rear Wheels . . . . . . . 14

OPERATOR CONTROLS

Parking Brake. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Steering Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

FUEL TANKS AND ENGINE

Engine, Exhaust, Belts and Idlers . . . . . . . . . . . . . . 20 Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

ELECTRICAL SYSTEM

Continuity Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . 23

Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

MOWER DECKS

Mower Deck Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Mower Deck, Belt and Idlers . . . . . . . . . . . . . . . . . . 30

Belt Covers and Blades . . . . . . . . . . . . . . . . . . . . . . 34

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