Graco 25R128, Установка - Работа - Ремонт

Страница: 57 / 92

Repair
3A7526B 57
Disassemble Cylinder
1. Remove the MD2 Dispense Valve (AE).
2. Remove the six end cap screws (111).
3. Remove the cylinder end caps (106).
4. Remove the cylinder (108) and O-rings (109) from
the cylinder housing (10202a).
5. Use the specific tools remove the piston nut (105).
6. Remove the piston (103) and piston plate (104) from
the rod.
7. Remove the O-ring (10201e) from the rod.
8. Clean all parts that have been removed.
Install Cylinder
1. Install the new O-ring (10201e) to the rod with TSL
oil.
2. Install the piston plate (104) and the new piston in
the correct direction.
3. Install the piston nut (105) (Tighten the piston screw
with correct torque).
4. Lubricate the new O-rings (109) and inside the
cylinder (108) with TSL oil.
5. Insert the lubricated O-rings (109) into the grooves
of the Cylinder housing (10202a) and cylinder end
caps (106).
6. Carefully slide the end of the cylinder into the
cylinder housing (10202a) in the correct direction.
Ensure the cylinder doesn’t damage the sides of the
piston as the cylinder is inserted.
7. Install the cylinder end caps (106).
8. Secure cylinder in place with the six end cap screws
(111). Diagonally tighten the screw by slowly and
progressively increasing torque until the screws are
securely housed.
9. Install the Junction Box Assembly (AA) and connect
all cables or tubes.
10. Install the MD2 Dispense Valve (AE).
11. Turn on the air supply and power.
Prepare Machine for Operation
1. Pressurize Supply Pump Systems A and B (K and
L) connected to the PR-X Inlet Valve (AL or AM).
Perform
Prime the System on page 44.
2. Perform the Ratio Check Procedure on page 45.
3. Install Static Mixer Package (AH).
4. Dispense several full stroke shots until the PR-X
Machine (H) is free of air and there is no leakage at
the nose piece after shutoff.
F
IG
. 45 Disassemble Cylinder
105
106
108
109
111
103
104
109
10201e
10202a