Graco SaniForce 4150 - 1590 Specifications; 1590 Dimensions

Repair
Center Center
Center
Section Section
Section
Repair Repair
Repair
Tools Tools
Tools
Required: Required:
Required:
•Torquewrench
•10mmsocketwrench
•9/16in.socketwrench
•Bearingpuller
•O-ringpick
•Press,orblockandmallet
Disassemble Disassemble
Disassemble
the the
the
Center Center
Center
Section Section
Section
NOTE: NOTE:
NOTE:
Donotremoveundamagedbearings.
1.FollowthePressureReliefProcedure,page9.
Disconnectall󰘱uidandairlines.
2.Removethemanifoldsand
checkvalvepartsasdirectedin
DisassembletheCheckValve,page12.
3.Removethe󰘱uidcoversanddiaphragms
asdirectedinDisassembletheStandard
Diaphragms,page14orDisassemblethe
OvermoldedDiaphragms,page16.
NOTE:Ifyouareremovingonlythediaphragm
shaftbearing(111),skipstep4.
4.Disassembletheairvalveasexplainedin
AirValveRepair,page9.
5.Usea9/16in.socketwrenchtoremovethe
screws(3)andnuts(105)holdingtheaircovers
totheframe.
6.Usea10mmsocketwrenchtoremovethe
screws(104)holdingtheaircovers(103)tothe
centerhousing(101).
7.Removetheaircovergaskets(102).Always
replacethegasketswithnewones.
NOTE: NOTE:
NOTE:
Ifremovingthediaphragmshaftbearings
(111),useano-ringpicktoremovetheu-cups
(106)󰘰rst.
8.Useabearingpullertoremovethediaphragm
shaftbearings(111),airvalvebearings(115)
orpilotpinbearings(113).Donotremove
undamagedbearings.
9.Inspecttheu-cups.Replaceasneeded.
3A6782F19