Specifications

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REASSEMBLY - Figure 15 & 16
1. Take lower male gland (331-014) & place it down on
the  at side.
2. T
ake three of the lower polyethylene packings (331-016) & two
of the leather packings (331-306) & place onto the male gland in
the following order with the inverted side down :
polyethylene, leather, polyethylene, leather, polyethylene.
3. T
ake the female adaptor (331-305), which is inverted on both
sides , & place it on top of your assembled lower packings.
4.
Follow step 2 above with your packings inverted side up.
5. Take the second lower male gland and place it on top of your
assembled packings with the rounded side down.
6. T
ake assembled glands & packings (13 pieces) & slide on to the
lower half of the piston.
7. T
ake the spacer (331-018) & slide over the top of the piston (it
doesn’t matter which direction it sits), falling onto lower packings.
8. T
ake three Belleville Springs (331-025) & slide over the top of
the piston in the following order:
* First spring, curve facing down
* Second spring, curve facing up
* Third spring, curve facing down
9.
Take the upper male gland (331-022) & place it rounded side up.
10.
Take three upper polyethylene packings (331-023) & two leather
packings (331-307) & assemble with inverted side down ,
on to the male gland in the following order:
polyethylene, leather, polyethylene, leather, polyethylene.
1
1. Take upper female gland (331-021) & place on top of the assembled
upper packings with the inverted side down.
12. Take assembled upper glands & packings (7 pieces) & slide on
over the top of the piston, making sure inverted sides are down.
13. Take the packing holder (331-019) & replace the white O-ring
(106-009) & the black O-ring (106-010) with new ones from the
packing kit.
14. Slide the packing holder over the top of the upper packings
so they  t inside.
15. Lubricate inside of the  uid pump body & the outside of the
packings with a light weight oil.
16. Slide completed assembly into  uid pump body (331-011).
*
To keep packings secured in correct position, hold the pump body
upside down & push the completed assembly upwards into the pump
body. Once placed inside, tilt pump body back up to keep all pieces in.
17. Tighten packing nut (331-037) onto the top of the  uid pump
body & tighten until you feel slight resistance against the
Belleville Springs (331-025). Using the Packing Adjustment Tool
(189-211), tighten another 3/4 of a turn.
Fluid Pump Reinstallation - Figure 11 & 14
1. Loosen packing nut & ensure that the piston rod (331-093) is in
its upper position in the  uid pump body (331-209). Slip the
sleeve (331-117) & the retaining ring (331-062) over the piston rod.
2. Push piston rod up into the connecting rod (331-038) & align the
holes. Insert the connecting rod pin (331-065) through the
connecting rod & piston. Slip the sleeve up over the connecting
rod pin & insert retaining ring into the groove on the connecting rod.
Fluid Pump Removal - Refer to Figure 11
1. Follow the Pressure Relief Procedure above.
2. Flush material you are spraying out of the machine.
3. Remove the connecting rod shield (331-1
11).
4. Move the piston rod (331-093) to its lowest position by
cycling pump slowly or by rotating the motor fan.
5. Disconnect the sensor (331-294-99) by holding it in place
with a 7/8” wrench & unscrewing the swivel connector
(100-003) with an 11/16” wrench.
DO NOT TURN THE SENSOR.
6. Remove the retaining ring (331-062) from the connecting
rod (331-038) and slide the sleeve (331-117) down
revealing the onnecting rod pin (331-065).
7. Remove the suction tube assembly from the  uid pump
(331-708) by unscrewing the suction nut (331-034) with the
packing adjustment tool.
8. Using a 1/2” wrench unscrew the two bolts (100-318) from
the cover assembly 331-234). The  uid pump (331-209)
will be hanging loosely at this point.
9. Remove the connecting rod pin (331-065) out of the
connecting rod (331-038), allowing the removal of the  uid
pump (331-209) from the machine.
Disassembly of the Fluid Pump - Figure 16
1. Unscrew & remove the packing nut (331-037).
2. Push the piston rod (331-708) down through the packings
& out of the pump.
3. Now push the packing removal tool (187-249) up through
the pump & remove from the top bringing packings, spacer
& springs along with it, leaving fluid body (331-011) empty.
*Make sure all old packings & glands have been removed from fluid pump.
4. Clean inside of fluid body (331-011).
5. Disassemble all parts & clean for reassembly. Discard any
old packings.
6. Lubricate leather packing in lightweight oil for 10 minutes
prior to reassembly.
Disassembly of the Outlet Vavle - Figure 13
1. Place
piston holder (331-195) in a vise. Slide piston into
the holder & lock in place with a 3/8” dowel.
2. Use a 1/4” allen wrench to unscrew the outlet seat retainer
(331-026) from the piston.
3. Remove the outlet seat (331-026), O-ring (331-100) and
outlet ball (331-027).
4. Inspect outlet ball & seat for wear
. Replace as necessary.
5. While piston is still locked in the holder
, install parts back
into the piston in the following order:
ball, outlet seat and O-ring
B
efore reinstalling the outlet seat support, apply two drops of Loctite
No. 242 (blue) on the threads & torque to 20 ft-lbs.
Replacement Instructions:
Packing Replacement Procedures
packings (331-307) & assemble with inverted side down ,
the following order with the inverted side down :
Follow step 2 above with your packings inverted side up.
Take the upper male gland (331-022) & place it rounded side up.
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