Maintenance Procedures
313527ZAD 17
Flush Before Using Equipment
The pump was tested with lightweight oil, which is left in
the fluid passages to protect parts. To avoid contaminat-
ing your fluid with oil, flush the pump with a compatible
solvent before use. See your pump manual for flushing
directions.
Maintenance Procedures
Platen Maintenance
See FIG. 10. If the platen does not come out of the pail
easily when the pump is being raised, the air assist tube
(F), or check valve may be plugged. A plugged valve
prevents air from reaching the underside of the plate to
assist in raising it from the pail.
1. Relieve pressure. Refer to parts illustration on page
58 and disassemble air assist valve as shown.
2. Clear air assist tube (F) in platen. Clean all parts of
valve and reassemble.
3. Remove bleed stick (EK) from platen. Push bleed
stick through bleed relieve ports to remove material
residue.
Adjust Spacers
Use Platen with Tapered and Straight Sided
Pails
The platen is supplied for use with 20 liter (5 gallon), 30
liter (8 gallon), and 60 liter (16 gallon) straight sided
pails, but only single wiper platens can be easily modi-
fied for use with tapered pails.
Use platen with tapered pails
1. Working from the bottom, use screwdriver to pry
spacer (EG) loose. Work spacer upward completely
above the flange of the platen. See F
IG. 11.
2. By hand, angle spacer (EG) and work it off the plate,
pulling it down over the flange and bottom wipers
(EB). See FIG. 12.
3. Save spacer (EG), as it is required for other applica-
tions.
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the
Pressure Relief procedure.
FIG.10
To use Model 255655 platens
with tapered pails, the spacer
(EG) must be removed.
1
EG
F
r_255468_313527_33a
FIG.11
EG
EB
r_255468_313527_30a
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