3JR70 (Type 1) DeVilbiss Compressor - Overview

Sections of the 3JR70

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Gauge 1.5 300PSI 1/8 – Part Number: GA-373
Gauge 1.5 300PSI 1/8
PartSelect #: PS10116089
Manufacturer #: GA-373
  No Longer Available
Cord Power-SJOW 14GA – Part Number: D26616
Cord Power-SJOW 14GA
PartSelect #: PS10115957
Manufacturer #: D26616
  No Longer Available
SCREW #8-32X.375/.34 – Part Number: SUDL-9-1
SCREW #8-32X.375/.34
PartSelect #: PS12509515
Manufacturer #: SUDL-9-1
$5.95
  Special Order
SCREW – Part Number: A19123
SCREW
PartSelect #: PS12512659
Manufacturer #: A19123
$5.95
  Special Order
PUMP ASSEMBLY – Part Number: N087118SV
PUMP ASSEMBLY
PartSelect #: PS12522876
Manufacturer #: N087118SV
$198.91
  In Stock
Brush Pair Kit – Part Number: 5140209-03
Brush Pair Kit
PartSelect #: PS16679651
Manufacturer #: 5140209-03
Genuine Porter Cable replacement part Includes 2 Carbon Brushes, with wire lead. • Worn brushes frequently are the cause behind a motor running poorly. • Replacing brushes can fix a motor that'...
$18.64
  Special Order
TUBE SEAL – Part Number: N044359
TUBE SEAL
PartSelect #: PS12522478
Manufacturer #: N044359
This replacement tube seal is designed to prevent air leaks and maintain efficient compressor performance. Sold individually, it fits securely onto the outlet tube that connects to the head of the com...
$5.95
  In Stock
Valve – Part Number: D20114
Valve
PartSelect #: PS17000937
Manufacturer #: D20114
This safety valve is a genuine replacement part manufactured for use with air compressors. If the compressor's pressure switch malfunctions, and does not turn the motor off when the amount of pressure...
$13.48
  Special Order
VALVE CHECK 1/2NPT X – Part Number: D24879
VALVE CHECK 1/2NPT X
PartSelect #: PS18991705
Manufacturer #: D24879
  No Longer Available
Connecting Rod Assembly – Part Number: N036518
Connecting Rod Assembly
PartSelect #: PS10049057
Manufacturer #: N036518
This genuine OEM replacement kit is designed for use with select air compressors and includes essential components to restore proper function. The kit comes with a piston rod, compression ring, cylind...
$76.34
  Special Order
Tube Outlet 2.5G UMC – Part Number: DAC-269
Tube Outlet 2.5G UMC
PartSelect #: PS10044465
Manufacturer #: DAC-269
  No Longer Available
TUBE ISOLATOR – Part Number: AC-0206
TUBE ISOLATOR
PartSelect #: PS18991058
Manufacturer #: AC-0206
  No Longer Available

Questions And Answers for 3JR70

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Common Symptoms of the 3JR70

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Worn piston rod and sleeve
Disassemble plastic housing around compressor unit using appropriate tools. Remove the four bolts from the compressor head using a 5/16 nut driver. Carefully remove head assembly including airline. Remove bolt through rod bearing with Allen wrench.

Reassemble with new rod and piston assembly. Best to use blue locktite on bolt through rod bearing when reassembling. Make sure to torque all bolts to specs listed.
Parts Used:
Connecting Rod Assembly
  • Donald from BRYAN, TX
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Screw drivers
7 of 11 people found this instruction helpful.
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The compressor was getting air
Put the seal in and it ran like a champ. No vacuum leak and it now runs again!
Parts Used:
TUBE SEAL
  • Linda from CARO, MI
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers, Socket set, Wrench set
3 of 7 people found this instruction helpful.
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