Graco Inc. 253471 - Manual (Page 13)

Pump Power Head Replacement
311283D 13
2. Tighten power head bolts (7). Torque bolts to 400 +
10 in-lb (45 + 1 N•m).
3. Attach hoses (100, 101) to head (75). Torque to 450
+ 10 in-lb (50.84 N•m).
4. To purge air from hydraulic lines, increase pressure
enough to start hydraulic motor stroking and allow
fluid to circulate for 15 seconds.Turn pressure
down. Turn prime valve horizontal (closed).
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101
100
75
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