Maintenance
12
3A1182B
Fluid Pump Reinstall
1.
Loosen the packing nut and ensure the piston rod
(10) is in its upper position in the fluid pump body
(9), snap cap (4) onto packing nut and slip the
sleeve (2) and the retaining ring (3) over the piston
rod (10).
2.
Push the piston rod (10) up into the connecting rod
(2) and align the holes. Insert the connecting rod pin
(1) through the connecting rod (2) and piston. Slip
the sleeve (3) up over the connecting rod pin (1) and
insert the retaining ring (4) into the groove and the
connecting rod (2).
3.
Push the two bolts (8) though the tube spacers (11)
and screw them into the cover assembly (14). Using
a 1/2” wrench, tighten the two bolts (8) evenly (alter-
nating between them) until you reach 20 ft-lbs.
4.
Reassemble lower suction valve assembly by plac-
ing the suction seat, O-ring, suction ball and suction
ball guide in the suction nut (7) and screw onto fluid
pump body (9).
5.
Reconnect the sensor to the fluid pump body (9).
Hold sensor with a 7/8” wrench and tighten the
swivel (6) with a 11/16” wrench.
6.
Start the machine and operate slowly to check the
piston rod (10) for binding. Adjust the two bolts (8),
holding the fluid pump body (9) to the cover assem-
bly (14), if necessary. This will eliminate any binding.
7.
Tighten packing nut clockwise until resistance is felt
against the Belleville Springs, go 3/4 if a turn more.
Put five drops of Airlessco Throat Seal Oil in the
packing nut.
8.
Run the machine at full pressure for several min-
utes. Release the pressure by following the Pres-
sure Relief Procedure and readjust the packing nut
per step 7 above.
9.
Install the connecting rod shield (12) so that the
small hole is in the upper right hand corner.
ti16053a
14
8
7
5
4
3
2
16
12
11
10
9
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