Blagdon Pump AVX75 Metallic - Manual (Page 20)

avx75mdl1sm_haz duty-rev0112 Model AVX75 Hazardous Duty Metallic Page 18
Air Valve with Stroke Indicator Assembly Drawing and Parts List
AIR VALVE ASSEMBLY PARTS LIST
Item Part Number Description qty
1 B031-147-003 Air Valve Assembly 1
1-A B031-143-162 Sleeve and Spool Set 1
1-B B095-094-559 Body, Air Valve 1
1-C B132-029-552 Bumper 2
1-D B165-098-147 Cap, End 2
1-E B560-020-360 O-Ring 8
1-F B675-044-115 Ring, Retaining 2
1-G B210-008-330 Clip, Safety 1
1-H B560-029-360 O-Ring 2
.297
1.F
1.E
1.G
1.D
1.C
1.A 1.A
1.E
1.B
1.F
1.E
1.D
1.H
1.C
1.H
Check gap after assembly to
insure complete installation of
Retaining Ring
NOTE:
Air Distribution Valve With Stroke Indicator Option Servicing
To service the air valve first shut off the compressed air supply, bleed the pressure from the pump, and
disconnect the air supply line from the pump.
Step #1: See COMPOSITE REPAIR PARTS DRAWING.
• Using a 5/16" Allen wrench, remove the four hex socket capscrews and four flat washers. Remove the
air valve assembly from the pump.
• Remove and inspect gasket for cracks or damage. Replace gasket if needed.
Step #2: Disassembly of the air valve.
• To access the internal air valve components first remove the two retaining rings from each end of the air
valve assembly using clip ring pliers.
• Next remove the two end caps. Inspect the o-ring for cuts or wear. Replace the
o-rings if necessary.
• Remove the two bumpers. Inspect the bumpers for cuts, wear or abrasion. Replace if necessary.
• Remove the spool from the sleeve. Be careful not to scratch or damage the outer diameter of the spool.
Wipe spool with a soft cloth and inspect for scratches or wear.
• Inspect the inner diameter of the sleeve for dirt, scratches, or other contaminants. Remove the sleeve if
needed and replace with a new sleeve and spool set.
Step #3: Reassembly of the air valve.
• Install one bumper and one end cap with o-rings into one end of the air valve body. Install one retaining
ring, into the groove on the same end. Insert the safety clip through the smaller unthreaded hole in the
endcap.
• Remove the new sleeve and spool set from the plastic bag. Carefully remove the spool from the sleeve.
Install the six o-rings into the six grooves on the sleeve. Apply a light coating of grease to the o-rings
before installing the sleeve into the valve body.
Align the slots in the sleeve with the slots in
the valve body. Insert the spool into the sleeve.
Be careful not to scratch or damage the spool
during installation. Push the spool in until the
pin touches the safety clip on the opposite end.
• Install the remaining bumper, end cap with
o-rings and retaining ring.
• Fasten the air valve assembly
and gasket to the pump.
• Connect the compressed air line to the pump.
Remove the safety clip. The pump is now ready
for operation.
Read these instructions
completely, before
i n s t a l l a t i o n a n d
start-up. It is the
responsibility of the
purchaser to retain this
manual for reference. Failure to comply
with the recommendations stated in this
manual will damage the pump, and void
factory warranty.
IMPORTANT