Bendix Commercial Vehicle Systems BA-921 COMPRESSOR_STD/CLOSED ROOM User Manual
Page 10
10
FIGURE 16 – BA-921
®
CLOSED ROOM COMPRESSOR EXPLODED VIEW.
See Figure 11 for
Port Details.
28 Crankcase
Cover
21 Crankcase
13 Cylinder Head
16 Valve Plate
Assembly
15 Cooling Plate
4 Unloader Cover
2 Unloader Cover Cap Screws (2)
10 Unloader Piston
6 Unloader Balance Piston
14 Head Gasket
(2)
9 O-Ring
5 Unloader Cover Gasket
27 Bottom Cover
Gasket
12 ST-4
™
Safety Valve
8 Spring
1 Head Cap Screws (6)
(include washers)
7 O-Ring
17 Inlet Reed Valve/
Gasket
20 Bearing
29 Cap
Screws (4)
11 O-Ring
30
Governor
Gasket (2)
31
Governor
Adapter
32 Bolt
with
Washer
(2)
Crankcase
Alignment
Pins
Alignment
Bushings
Kit Notes:
Kit 1: Cylinder Head Gasket
Kit (K022563)
Kit 2: Unloader Kit (5008557)
Kit 3: Governor Adapter Kit
(5008561)
Item Qty. Description
23
1
Rear Bearing (see Fig. 15)
24
1
O-Ring (see Fig. 15)
25
1
Rear End Cover (see Fig. 15)
26
4
Cap Screws (see Fig. 15)
27
1
Bottom Cover Gasket
28 1 Crankcase
Cover
29 4 Cap
Screws
30
2
Governor Gasket - (Kit 3)
31
1
Governor Adapter - (Kit 3)
32
2
Bolt with Washer - (Kit 3)
Item Qty. Description
1
4
Head Cap Screws
2
2
Unloader Cover Cap Screws
3
1
Unloader Cover Splash Shield
4 1 Unloader
Cover
5
1
Unloader Cap Gasket - (Kit 2)
6
1
Unloader Balance Piston - (Kit 2)
7
1
O-Ring - (Kit 2)
8
1
Spring - (Kit 2)
9
1
O-Ring - (Kit 2)
10
1
Unloader Piston - (Kit 2)
11
1
O-Ring - (Kit 2)
12 1 ST-4
™
Safety Valve
13 1 Cylinder
Head
14
2
Head Gaskets - (Kit 1)
15 1 Cooling
Plate
16 1 Valve
Plate
Assembly
17
1
Inlet Reed Valve/Gasket - (Kit 1)
18 1 Piston
19 1 Connecting
Rod
20 1 Bearing
21 1 Crankcase
22
1
Crankshaft (see Fig. 15)