TUBE AS 3157211 - Caterpillar

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Open engine compartment cover (10) .
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Disconnect the charge supply hose to the left material feed pump at fitting (12) from tee fitting (11) .
Plug fitting (12) with Tool (D) and Tool (E) . Cap tee fitting (11) with Tool (F) .
Assemble two sets of Tool (A) and two sets of Tool (B) . Connect one Tool (A) to each Tool (B) .
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Install one Tool (B) on charge pressure tap (13) on the right material feed pump.
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Install other Tool (B) on case drain tap (14) on the right propel pump.
Move engine start switch (8) to the START position. Release the engine start switch when the engine starts.
Operate the engine at low idle for a few minutes.
Move throttle control switch (7) to the HIGH IDLE position twice. For each switch actuation, hold the switch in this position for