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REPAIR AND CLEANING PROCEDURE
CLEAN THE MUFFLER (FIG. 5)
1. Unscrew and remove the plug (51).
2. Remove the diffuser from the silencer (52).
3. Replace the felt (53) with a new one.
4. Refit the diffuser (52) together with the new
felt (53).
5. Refit the plug (51).
AIR DISTRIBUTOR (FIG. 6)
1. Unscrew the 4 screws (16) from the cover (5) and remove it.
2. Unscrew the 4 bolts (52) from the silencer (46) and remove it together with the gasket (50) and the
silencer resonator (49).
3. Using a plastic tool, gently tap the slide (31) on the side of its smallest diameter through the motor
(Fig. 6), remove the slide (31).
4. Replace slide seals 2x(32), (33) and (45), or replace the complete slide (31) with its factory installed
seals (kit 833815). This is the recommended option to ensure that the seals are correctly installed.
RO
QS
Fig. 6
AIR DISTRIBUTOR SEALS (FIG. 7)
1. Remove the 3 bolts (1) and then the cap (2).
2. Remove the part (3) and its o-ring (4). Remove o-ring (4) and replace it later by a new one.
3. Take away the 2 curved keys (5).
4. Unscrew the 5 bolts (7) and take tehm away along with their washers (6).
5. Pull upwards the head of the motor (18) till it´s free from the rest of the pump.
6. Pull upwards the part (10) till it´s out of the head of the motor.
Remove o-rings (3x8 and 9) and replace them later by new ones.
7. Remove o-rings (19), (20), 4x(21), (22) and the one (8) below the washer (23). Replace them
later by new ones.
8. Remove the 4 bolts (50), pull upwards the part (24) and then remove o-rings (25) and (26).
Replace them later with new ones.
9. Pull upwards the cylinder (36) and replace o-rings (25), (26) and (31).
10.Reassemble in reverse order, applying thread locker in part (3).
NOTE: all these seals are included in the available kit 833875.
4
SB 1153
R. 02/22
Fig. 5
RM
QV
Balcrank Corporation - Weaverville - NC · Tel.: 800-747-5300 · www.balcrank.com
53
52
P O
P O
QR
P P
P N
P U
R
1
51
2
3
4
5
6
7
8
9
10
8
18
19
20
8
24
25
26
27
30
31
NS
32
33
34
35
37
38
39
40
39
42
41
25
26
Fig. 7
49
50
21
22
23
28
29
36
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