Gardner Denver FXD – 10” Operating And Service Manual - page 18

3–600    Page 12

SECTION 3

ROUTINE MAINTENANCE & SERVICE INSTRUCTIONS

FIGURE 8  –  JACKSHAFT ASSEMBLY

Daily Care – The pump should be kept clean, lubri-

cated properly and stuffing boxes examined daily. With

reasonable care, the pump can be expected to give

long and trouble–free life.

Occasional  Inspection – It is recommended that the

fluid valves be examined occasionally to see that ex-

cessive wear or cutting has not impaired their efficiency

and any damaged or worn parts should be replaced.

Fluid end must always be drained when exposed to

freezing weather during idle periods.

SERVICE INSTRUCTIONS

Removal of Jackshaft – To remove the jackshaft, it is

necessary to remove the bearing housings from both

sides of the pump. The bearing outer races and rollers

come off with the housings. The bearings inner races

and the seal bushings are pressed on the jackshaft and

need not be removed unless replacement is necessary.

The jackshaft can be lifted clear of the gear teeth and

removed. The jackshaft is not interchangeable end for

end, hence, it must be reinstalled in the same way it

was removed.

Installation of Jackshaft Oil Seals – The jackshaft

roller bearings are provided with a separate inner and

outer oil seal.  The correct assembly of these seals is

with seal lips facing bearings.

To Remove Crosshead Pin From FXF and FXG

Pumps – The crosshead pin can be removed from the

FXF and FXG only by removing the entire gear assem-

bly. To remove the gear and eccentric, it is necessary

to remove the main shaft. The main shaft must be re-

moved from the side of the pump in which the end of the

shaft contains a 3/4–10 UNC tapped hole. This is the

end of the shaft that also contains the main shaft to ec-

centric key. (See FIGURE 9.) It is advisable to have

new shaft seals as these seals can rarely be used the

FIGURE 9  –  ECCENTRIC AND MAIN SHAFT ASSEMBLY