Keepyour DUSPENSnNG, Check the Diaphragm | Sears 625.34929 instruction

I KEEPYOUR DUSPENSnNG

LUBRICATION -- At least every 6 months,

lubricate the solution pump as follows:

1.Unplug the electrical power cord,

2.Loosen the set screw in the feed control knob

and remove the knob and bushing,

3.Remove the pump top cover,

4.Clean all the grease from the moving parts and inspect for wear, damage or corrosion. Replace parts as needed

5.Lubricate all parts with a premium grease,

NOTE: If you replace any parts, adjust the cam and plate (FIG. 14) as follows:

1.Loosen the adjustment plate holding screw.

2.Plug in the power cord and operate motor until

the block-drive is in the extreme rear position_

Disconnect power cord.

3.Rotate the shaft assembly until the flat position on the cam is bearing on the drive plate.

4.Tighten the adjustment plate holding screw while holding the flat of the cam against the drive plate.

GEARMOTOR I Every 6 months, place a few drops of spindle oil on the rear rotor bearing (right behind the fan).

NOTE: To get at the gear motor, unplug the power cord and remove the screws holding the motor housing to the regulator housing (located under pump head and at rear of pump). Carefully lift the regulator housing up and off_

CHECK THE DIAPHRAGM

1.Unplug the power cord.

2.Remove the 4 screws holding the pump head to the housing°

3.Move the pump head away from the pump and

inspect the diaphragm for cracking, swelling, softening or blistering. If a new diaphragm is need- ed, replace it as follows:

	SHAFT ASSEMBLY
	CAM
DRIVE BLOCK
!	/HOLDING
	! REW
GUIDE SCREW /	!
GUIDE SCREW /	PIVOT
DRIVE BLOCK IN
EXTREME REAR
POSITION

rf.......\ ° v._.w/

_SHAFT ASSEMBLY

/ oi ojj

\ DRIVE PLATE

yADJUSTMENT

DIAPHRAGM SPACER CAM PLATE

REPLACING THE DIAPHRAGM --

1.Turn the diaphragm to the left (f-") to remove. Discard the diaphragm, backup gasket,spacer and washer. (see Key No. 18, page 18).

2.Put a few drops of oil or lightly grease the stud

on the new diaphragm. Place the spacer over the hex nut, then the fiber washer.

3.Holding the backup gasket in place behind the diaphragm, turn the diaphragm into the drive plate until the spacer just touches it. Then tighten to align the mounting holes.

4.Replace the pump head and turn in the 4 screws,

tightening in a criss-cross pattern.

5.Plug the power cord in and prime the head using the guides or] page 14.

CHECK THE TUBING -- Check the solution carry- ing tubing and fittings weekly for any signs of leakage_ if leaking at a holding nut, tighten it 1/8 to 1/4 turn. If it still leaks, disconnect the tubing, cut the end square and reconnect it to the fitting.

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