Yanmar EF393T Operator's Manual page 38

(5) Check hitched implement
• PTO Drive shaft lock pin must be in groove of
PTO output and input shafts.
• Pins must be inserted in proper positions.
• Loosened bolts and nuts.
• Damaged or worn parts.
• Connection of 3-point linkage.
(6) Start the engine and check:
• Abnormal sound or noise.
• Function of each lamp, gauge and meter
• Color and smell of exhaust gas.
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EF393T OM