WAGNER SuperCoat 0556730W Betriebsanleitung Seite 21

DO NOT loosen the bottom fitting.
4. Remove the two screws (6) that secure the Automatic
the entire assembly from the air motor.
halves of the shield together and remove the shield.
Disassembling the Air Motor (Fig. 19)
1. Remove locking bolts and nuts (1, 2), trip spring retainers (3),
O-rings (4), trip springs (5), and balls (6) from both sides of the
cylinder head (7).
2. Disconnect air line (8) from adaptors top and bottom.
3. Remove the bolts (10).
4. With piston (12) in down position, place wrench on flats
of piston rod (13) and disconnect piston rod from pump
connecting rod (14) by unthreading the coupling nut (36). The
connecting rod (14) can remain secured to the fluid section
displacement rod (37).
5. Remove the lower stanchion nuts (38) and carefully separate
the fluid pump from the air motor assembly.
6. With piston (12) at top of stroke, raise cylinder head (7) and
7. Remove stop nut (17) and then unthread upper valve keeper
(18).
8. Remove air valve (19) followed by lower valve keeper (20) and
bushing (21).
9. If valve sleeve (16) is still in cylinder head, leave it there unless
bent extraction tool to carefully remove the sleeve (16).
10. Remove cylinder (23).
11. Secure piston rod (13) in vise and remove piston nut (25) and
piston washer (26).
12. Remove piston rod (13) and piston (12) from motor base (24).
Do not clamp on O.D. of the piston rod.
Attention
13. Remove valve rod assembly (27) and valve trip collar (28).
15. Remove O-ring (29) from piston (12).
16. Remove O-rings (30, 31) from bushing (21), O-ring (32) and
wear ring (33) from motor base (24).
Reassembly Procedure (Fig. 19)
Wash all replaceable parts thoroughly with kerosene and lubricate
servicing, use new parts from the Air Motor Service Major (see next
column for part numbers). Inspect all other parts for abnormal wear
or damage and replace if necessary.
1. Install new O-ring (32) and new wear ring (33) into motor
to avoid damaging O-rings and make sure they are properly
seated in the O-ring grooves.
2. Place valve trip collar (28) into piston rod (13) followed by
valve rod assembly (27).
3. Screw piston rod (13) into piston (12). Replace piston nut and
washer (25, 26).
4. Install new piston O-ring (29) into piston (12).
5. Place new gasket (34) into position in motor base (24).
6. Place piston assembly (12, 13) into motor base (24). Do not
damage O-ring.
7. Place new O-rings (35) on air valve (19).
SuperCoat
GB
8. Mount air valve assembly (19, 35) onto valve rod (27) by
placing bushing (21) over valve rod (27), followed by keeper
(20), air valve (19) and upper valve keeper (18). Thread upper
valve keeper (18) down on air valve hand tight. Then loosen
approximately 1/4 turn. Place wrench on flats of valve rod (27)
and hold to prevent valve rod (27) from turning. Thread stop
nut (17) down on valve rod (27) to lock upper valve keeper (18)
position.
9. Grease inside of cylinder (23) and work cylinder down over
piston gently in order to avoid damage to piston O-ring (29).
10. Install new O-rings (22) on valve sleeve (16). Grease valve
sleeve and install into cylinder head (7) so large holes in sleeve
line up with trip retainer holes in cylinder head (7). Put one
trip retainer (3) with new O-ring (4) into cylinder head without
ball (6) or spring (5) and hold in position temporarily with
locking bolt (1) and nut (2).
11. Place new gasket (34) into position in cylinder head (7) and
hold with gasket cement or grease.
12. Carefully position air valve assembly (19) up into cylinder head (7).
13. Push bushing (21) up into bottom of cylinder head (7) to
sufficiently permit installation of retainer (15).
14. To install trip spring retainer be sure one of the detents of
valve (19) is properly lined up with hole in the cylinder head
(7). Place new trip spring retainer O-ring (4) onto remaining
trip spring retainer (3). Install new ball (6) followed by trip
spring (5) and trip spring retainer (3) into hole of cylinder head
15. For opposite trip spring retainer (3) replacement, repeat step #14.
16. Connect air line (8) to adapters top and bottom.
17. Replace bolts (10). Always tighten bolts 180 degrees apart in
order to obtain proper and even compression.
18. Place wrench on the flats of piston rod (13) and connect pump
connecting rod (14) by tightening the coupling nut (36).
19. Slide the fluid pump assembly back onto the stanchions (39)
and secure with the stanchion nuts (38).
Final Reassembly (Fig. 18)
assembly with the holes in the air motor housing. Secure to
the housing with the two screws (6).
2. Insert the air hose back into the top fitting (5). Tighten the
fitting with a wrench.
on the air hose side of the air motor. Place the shroud with
the 90º bend into position over the first shroud. Reconnect
the tube (3) to the fitting on the rear of the pressure gauge (4)
Secure into place by tightening the shroud screws (1).
4. Replace the cover (8) and secure with the four screws (7).
5. Replace the two halves of the shield assembly (10). Secure the
two halves to each other with screws and secure the entire
assembly to the plate (11) with the four screws (9).
Service Kits
700 900
Series Series
743-012 743-012
742-051 850-050
742-501 850-500
19
Description
items 17, and 27-28)
Motor service kit, minor (includes items 4-6,
17, 22, and 29-35)
Motor service kit, major (includes minor
service kit and items 16, 18-20 and 27-28
Servicing