Operation
308360D
9
Packing Nut
Before starting, fill the packing nut (2) 1/3 full with Graco
Throat Seal Liquid (TSL
TM
) or compatible solvent.
The packing nut is torqued at the factory and is ready for
operation, If it becomes loose and there is leaking from
the throat packings:
1. Perform the
2. Torque the packing nut (2) to 136-149 N•m
(100-110 ft-lb) with the supplied wrench (110).
NOTE:
Do not overtighten the packing nut.
Start and Adjust the Pump
1. Connect the suction kit (T) to the pump fluid inlet.
Place the tube into the fluid supply.
2. Close the air regulator (F).
3. Open the pump bleed-type master air valve (E).
4. Hold a metal part of the gun (S) firmly to the side of
a grounded metal pail and hold the trigger open.
5. Slowly open the regulator until the pump starts.
6. Cycle the pump slowly until all air is pushed out and
the pump and hoses are fully primed.
7. Release the gun trigger, engage the trigger safety
lock. The pump should stall against pressure.
8. If the pump fails to prime properly, open the drain
valve (M). Use the drain valve as a priming valve
until the fluid flows from the valve. Close the valve.
NOTE:
When changing fluid containers with the hose
and gun already primed, open the drain valve (M) to
help prime the pump and vent air before it enters the
hose. Close the drain valve when all air is eliminated.
9. With the pump and lines primed, and with adequate
air pressure and volume supplied, the pump will
start and stop as you open and close the gun. In a
04143
Model 237516
Shown
110
2
Torque to
136-149 N•m
(100-110 ft-lb)
1
1
NOTICE
To prevent intake valve damage, always apply PTFE
tape to the female threads of the intake valve before
connecting a suction hose or fitting to the intake.
To reduce the risk of over-pressurizing your system,
which could cause rupture and serious injury, never
exceed the specified Maximum Air Input Pressure to
the pump (see
, pages
NOTICE
Do not allow the pump to run dry. It will quickly
accelerate to a high speed, causing damage. If your
pump is running too fast, stop it immediately and
check the fluid supply. If the container is empty and
air has been pumped into the lines, refill the container
and prime the pump and the lines, or flush and leave
it filled with a compatible solvent. Eliminate all air
from the fluid system.
