Repair; Tank Removal; Ball Valve Removal From Tank - Graco PR70 Instructions - Parts Manual

Repair

Tank Removal

1. On models without ball valves, empty tanks by
executing multiple shots.
On models with ball valves, close the ball valves.
2. Relieve pressure. See Pressure Relief Procedure,
page 19.
3. For polyethylene tank models, remove the two
screws (211) that attach the tank T-beam support to
the pump sub-assembly.
211
4. On models without ball valves, loosen but do not
remove the six socket head cap screws (204) that
hold the tank to the pump housing.
On models with ball valves, remove the six socket
head cap screws (204) that hold the ball valve to the
pump housing. The tanks can now be pulled off of
the pump housing.
218
204
312394ZAC
5. On models without ball valves, remove the tanks.
•
•

Ball Valve Removal from Tank

Disassembly of the ball valve is not recommended.
Ensure the ball valve does not accidentally disassem-
ble when detaching the ball valve from the tank.
Polyethylene Tanks
215
ti12566a
1. Remove polyethylene tank assembly from the base.
2. Remove the six M5 screws (215) holding the two
ball valves to the polyethylene tank assembly.
ti12567a
For polyethylene tank models, rotate the lock
ring (218) for each tank counter clockwise and
lift the tanks off of the base.
For stainless steel tank models, rotate the
tank counter clockwise and lift the tank off of the
base.
CAUTION
Repair
ti12566a
25