Repair - Graco ToughTek S340e Operation, Repair, And Parts

Repair

Perform the procedure below to replace the entire pump
lower with a new or different pump lower.
1. Perform the Pressure Relief Procedure, pg. 21.
2. Disconnect the hopper, material hose, and power.
3. Remove outlet fittings (OF) from the pump lower
(6a) outlet.
4. Lift retaining spring (6m) and remove pin (6K).
5. Loosen jam nut (19) and unthread the pump lower
(6a).
6. Disconnect the piston extension rod (6b) by
removing clip (6e) and disassembling the coupler
cover (6d) and assembly coupling (6c). The pump
lower (6a) should now be separated from all other
parts. Replace the pump lower and reinstall on the
unit. If pump components need replacing, see
Replace Pump Components, pg. 28.
3A3437G
NOTE: When reinstalling the pump lower, the jam nut
(19) should be threaded on the pump lower until it
bottoms out. The pump lower should be threaded
completely into the motor adapter (6f) and backed off to
the correct orientation position shown above. Once in
position, unthread the pump two additional turns and
secure the jam nut.
Failure to assemble the pump lower to the correct
depth and orientation can cause damage to the
pump. To avoid damage to the pump, follow the
NOTE above.
NOTICE
Repair
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