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Begin OCR Text:
_ D _
_ D _v
_ underpressure (suct_on s1de) ' '
_ pressure_ess ca_r + petroI)
_ Appro_ l 2 kp/cmZ (17 ps i )
_o_return valve Closed
_ _o _p/cm_ (_8 p s i) reed pressure
_ Appro_ 4_ _p(cm_ C64 p s i )
F_g 2_5g _e,_ef $_d non_etUrn v8lve
l Vent_ng
Il Normal operal'on
Ill Rel'ef value opens
4
3
2 F_g, _, 6o Fue_ pump
_ 21 Onuettlet
3 OverfIDw channel
4 Spr_ng
_' _ombined relief and
_on return valve
6 Pump rotor
_ A_mature for electric
motor
2 26
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