VALVE 5337273 - Caterpillar

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Remove floor mat (1) .
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Remove bolts (3) and (4). Slide seat assembly (2) forward.
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Remove duct (5) .
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Remove louvers (6) .
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Remove bolts (7) and duct (8) .
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Remove louver (9). Repeat for the other side.
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Remove bolt (10) from duct (11). Repeat for the other side. Remove duct (11) .
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Remove bolts (12) and (14). Remove cover (13) .
Remove bolts (15) and panel (16) .
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Remove tray (17) .
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Open side door (18) .
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Disconnect air conditioning hose assemblies (19). Disconnect heater hoses (20) .
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Disconnect harness assembly (21) .
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Remove bolt (22) .
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Remove bolts (23) and plate (24). Remove bolts (26) and remove heating and air conditioning unit (25) .