Graco 24K466, 24J395, 24J392, 24J397, 24J398, 24J396, 24J399 Troubleshooting, Problem Cause Solution

Page 11

Troubleshooting

Troubleshooting

I

Problem

Cause

Solution

 

 

 

 

Pump stroke is adjusted to zero.

Adjust pump stroke for desired out-

 

 

put. See page 8.

 

 

 

Pump does not flow

Pump outlet is plugged.

Clean/flush pump outlet.

 

 

Outlet check valve damaged.

 

 

 

 

 

Replace pump.

 

Pump inlet check ball and/or seat is

 

 

 

damaged or worn.

 

 

 

 

 

Pump stroke is adjusted to minimal

Adjust pump stroke for desired out-

 

travel.

put. See page 8.

 

 

 

Pump has low flow

Pump inlet check ball and/or seat is

 

 

damaged or worn.

Replace pump.

 

 

 

Outlet check valve damaged.

 

 

 

 

 

Piston and bore are worn.

 

Pump has low discharge pressure

 

Replace pump.

Pump inlet check valve and/or seat

 

 

 

are damaged or worn.

 

 

 

 

 

Inlet pressure exceeds outlet check

Reduce inlet pressure to below out-

Fluid flow from pump outlet when

pressure.

let check pressure.

 

 

pump is not running

Pump outlet check ball and/or seat

Replace pump.

 

 

is damaged or worn.

 

 

 

 

 

Possible debris in inlet check

Perform Maintenance, page 12.

 

 

 

Sight well fills with oil*

Pump inlet check ball and/or seat is

Replace pump.

damaged or worn

 

 

 

 

 

 

Piston and bore are worn

 

 

 

 

Sight well runs dry*

Restriction in Drip or Suction tube

Perform Maintenance, page 12.

 

 

Air leak in sight well

Replace pump.

 

 

 

 

 

Pump air bound

Follow Setup section appropriate for

 

 

your pump model, pages 5-8.

Sight well remains constant and no

 

 

Pump regulation set too low

Increase pump regulation.

lubricant drips from tube

 

 

 

Camshaft speed too slow

Increase camshaft speed (see Table

 

 

1, page 10.

 

 

 

Cloudy or broken sight glass (Suc-

NA

Replace sight glass using GBL7500

tion or Gravity Fed Pumps only)

 

Sight Glass Replacement Kit

 

 

24T306. See Maintenance, page

 

 

12.

 

 

 

* Oil level in sight well will rise and fall during normal operation. If condition persists refer to Cause/Solution sections.

3A2257C

11

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