Flowserve Nordstrom Hypregun-Plus 5G Pneumatic Valve Sealant Injector - Manual (Page 18)

Nordstrom Valves Hypregun - Plus 5G FCD NVENIM2004-00-AQ 10/14
18
Problem Cause Solution
The air motor (1)
operates slowly
even with 125 psi
(8.6 bar) air supply
pressure.
Air flow is being restricted to the air motor. Replace the nylon air tube (5) or the metal air tube (91).
Yoke will not move.
Nipple (7) blocked.
Remove obstruction from air passages making sure the air
supply is of a clean source.
The ram needle valve (8) is closed.
Slowly open the ram needle valve. Once the follower has made
contact with the can, open the ram needle valve to 2 1/2 ” turns.
The ram needle valve (8) is blocked. Remove obstruction from the ram needle valve passage.
Air passages in the yoke (12) are blocked. Clear obstruction from air passages or replace the yoke.
Yoke will not raise
or lower evenly.
Cylinder (19) is dry of lubrication.
Introduce a light air tool oil into the air system. Use an oil which
is compatible with rubber to prevent swelling of the piston
packing.
Piston rods (22) are bent or scored. Replace damaged piston rod(s).
Piston packing (26) has swollen and is too tight in
cylinder (19
Replace the piston packing.
Piston packing (26) is too tight in cylinder (19)
due to cylinder distortion
Replace the cylinder.
Air passages of the base (18) are blocked. Clean air passages using a stiff wire or replace the base.
The yoke will not
raise when the air
supply is connected
to the nipple (57).
The restrictor ell assembly (30) air passage is
blocked.
Clean the air passage using a small, stiff wire or redrill the air passage
hole using a #55 wire gauge drill bit.