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REPAIR AND CLEANING PROCEDURE
WARNING! Before starting any kind of maintenance or repair, disconnect the compressed air supply and open the valve to relieve the
!
grease pressure.
SEPARATE THE AIR MOTOR FROM THE PUMP
1. Fix the pump in a vise in horizontal position (fig. 5). Gently blow with
a hammer the upper tube (73) close to the body (69) in order to
break the thread locker.
2. Unscrew the nut (94) and remove the primer (93).
3. Put a bar, rod or any kind of strong tube in the fluid outlet and use it
as a lever to unscrew the air motor.
4. Once unscrewed, pull the motor away untill the elastic pin (70) into
the rod (49) becomes visible. With a hammer and a suitable pin
punch, eject the pin (70). The motor becomes loose.
94
CLEAN THE MUFFLER
1. Unscrew bolts (27).
2. Remove exhaust assembly (25).
3. Unscrew the bolts (24) and remove the cap (29).
4. Remove the felt (30).
5. Remove the felt (31) and deflector (28).
6. Remove the bottom felt (30) and replace it with a new one.
7. Put back the deflector (28).
8. Insert the screws (27) and then a new felt (31). If not in this order,
it could be tricky to insert the screws.
9. Put a new felt (30).
10. Put back the cap (29) and its screws (24).
11. Ensuring the screws (27) stay into the muffler (25), put said muffler
on the motor and fix it with said screws.
12. It is also available a whole muffler assembly kit (539005), with
replaces the old one just operating the screws (27).
AIR DISTRIBUTOR
1. Unscrew the bolts (24) and remove the cap (23).
2. Ensuring the screws (27) remain into the muffler (25), unscrew them
and take away the muffler. Take away the o-ring (16).
3. Strike gently with a plastic tool through exhaust seat to
remove the spool valve (19).
4. Replace the seals (18) and (20) with new ones or
replace the whole spool (19) with its seals
factory installed (kit 539006). This is strongly
recommended in order to ensure the correct
assembly of the seals.
4
853 804 R. 06/20
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
93
27
70
73
49
25
27
28
Fig. 6
30
31
25
16
Fig. 7
69
Fig. 5
30
29
17
20
18
23
19
24
24
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