Care And Maintenance - Flowserve 400-D Assembly, Operation And Maintenance Manual

Care and Maintenance

Suggested Care
The following suggestions will ensure efficient
and continued operation of the 400-D Hand Gun.
1. Do not carry the gun by the Handle unless
secured with the Carry Strap. Carrying the gun
with an unsecured handle can damage the Piston.
2. Keep the Piston area of the gun free of debris.
3. Do not unscrew the By-Pass Valve more than one
complete turn. Doing so may allow air to enter the
hydraulic system of the gun.
4. Protect the Gauge from damage.
Maintenance
If the operating instructions are carefully followed and hydraulic
fluid is added at regular intervals, the 400-D Hand gun will operate
indefinitely without further maintenance. It is recommended a
maintenance program be established where the number of hours
the gun is used determines when maintenance is required.
Note: Numbers in parentheses refer to parts as illustrated
on pages 6 and 7 of this brochure.
Recharging and Bleeding
the Hydraulic System of Air
1. Open the By-Pass Valve (12) and remove the Handle (1).
2. Remove the Sealant Barrel Cap (26) and stand
the gun with the Sealant Barrel (24) up.
3. With the Handle, press the Floating Piston (41)
to the bottom of the Sealant Barrel. Make sure the
Floating Piston bottoms out in the Sealant Barrel.
4. Leave the Handle inside the Sealant Barrel and turn
the gun so the sealant barrel is pointing downward
and remove the Fluid Bag Barrel Cap (23).
5. Slowly remove the Screw (46) and O-Ring (31) from
the Fluid Bag (32).
6. Allow the weight of the gun to rest against the Handle
and slowly fill the Fluid Bag with Nordstrom
Hydraulic Fluid 71251. Allow the gun to stand 15 minutes to
permit the air suspended in the fluid to escape. (It is
recommended to allow the gun to sit for 2 to 3 hours after
recharging the hydraulic system with fluid to allow the
Fluid Bag to regain its original shape.)
7. Replace the Screw and O-Ring, being careful not to
entrap air.
8. Remove the Handle and replace the Fluid Bag Barrel Cap.
9. Reload the Gun with Sealant and replace the Sealant
Barrel Cap.
8 8
Replacing the Hydraulic Fluid Bag
1. Remove the Handle (1), open the By-Pass Valve (12)
and push the Floating Piston (41) to the bottom of the
Sealant Barrel (24). Clean the Handle and replace.
2. Place the Fluid Bag Barrel (22) end of the gun in a vise.
3. Place a suitable size container below the vise to catch
hydraulic fluid.
4. Using Gun Assembly Wrench 47521, remove the Body
(6) and attached parts from the Fluid Bag Barrel.
Hydraulic fluid will spill from the Fluid Bag.
5. If the Floating Piston could not be returned to the bottom of
the Sealant Barrel, return it now. See Step 1.
6. Remove the damaged Fluid Bag (32) from the Fluid Bag Barrel
and clean the barrel.
7. Remove the Sealing Ring (21).
8. Place the Sealing Ring onto the new Fluid Bag, loosen the
Fluid Bag Screw (46) and tighten snug.
9. Place the Fluid Bag into the Fluid Bag Barrel.
10. Fill the Fluid Bag to within ¾" of the top with Nordstrom
Hydraulic Fluid 71251.
CAUTION: Take care to keep foreign matter
from entering the hydraulic fluid. Debris in
the hydraulic system can prevent the gun
from operating properly.
11. Replace the gun assembly removed in Step 4 and tighten
by hand.
12. Tighten the assembly to approximately 50 ft-lb using the
Gun Assembly Wrench.
CAUTION: Overtightening the Fluid Bag Barrel to the
Body may damage the Fluid Bag Assembly.
13. After equipping the gun with a new Fluid Bag, recharge the
gun with hydraulic fluid as described in this brochure.
Sealant Barrel Replacement
1. Open the By-Pass Valve (12) and push the Floating
Piston (41) to the bottom of the Sealant Barrel (24).
2. Close the By-Pass Valve.
3. Place the Sealant Barrel end of the gun in a vise and,
with Gun Assembly Wrench 47521, remove the Body
(6) and attached parts from the Sealant Barrel.
4. Remove the Sealant Barrel from the vise and push
the Floating Piston from the Sealant Barrel. Note
the position of the assembly when removing.
400-D HYDRAULIC HAND GUN
Flow Control
Nordstrom Valves