BLOWER GP 4778004 - Caterpillar

Use Tooling (A) to remove retaining ring (2) .
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Remove shim (3) .
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Remove shaft seal (4) .Note: The control valve is under pressure of the spring.
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Remove four bolts (5) and control valve (6) .
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Remove O-ring seal (7) from the control valve.
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Remove four O-ring seals (8) .
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Remove eight bolts (9), solenoid (10), and solenoid (11) from the control valve.
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Remove O-ring seal (12) and remove O-ring seal (13) .
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Remove dust cap (14) .
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Remove fitting (15) .
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Remove O-ring seal (16) from fitting (15) .
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Remove four bolts (17) and flushing valve (18) .
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Remove O-ring seal (19) from the flushing valve.
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Remove four O-ring seals (20) .
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Remove eight bolts (21) and remove cover (22) .
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Remove O-ring seal (23) .