Ref.

  P/N
  UPPER GEAR UNIT AQ DRIVE UNIT 280, 280T
DESCRIPTION
       Upper gear unit AQ drive unit 280, 280T
1      Upper gear unit, NSS (15,37) up to 2890112 on drive gear unit
    850460-7   Upper gear unit, NSS (16,37) up to 2898014 on drive gear unit
    851340-0   Upper gear unit (42) from 2898015 on drive gear unit
2   832674-6   ...Upper gear housing
3   941814-6   ...Screw, see page 58, 2...L03 and page 60, 2...L05
4   832667-0   ...Cover
5   814179-8   ...Plug
6   897682-1   ...Gasket
7   941807-0   ...Screw
8   814643-3   ...Hollow screw
9   955989-9   ...Ring
10   832669-6   ...Gasket
11   839027-0   ...Set of gears
12   875425-1   ...Bearing unit
13   951940-6   ......Pin
14   183247-6   ......Bearing
15   853949-6   ......Roll bearing
16   897772-0   ......Oil slinger
17   925256-0   ...Rubber ring
18   941826-0   ...Shim, thickness = 0.50MM
    941827-8   ...Shim, thickness = 0.2MM
    948230-8   ...Shim, thickness = 0.35MM
19   839253-2   ...Seal ring
20   914538-4   ...Lock ring
21   832675-3   ...Washer
22   956000-4   ...Ring
23   943871-4   ...Shim, thickness = 0.05MM
    943872-2   ...Shim, thickness = 0.1 MM
    943873-0   ...Shim, thickness = 0.2MM
24   872129-2   ...Universal joint
25   872129-2   ......Joint fork
26   854302-7   ......Steering fork
27   897706-8   ......Interm piece
28   853255-8   ......Cross piece
    897776-1   .........Lock ring
30      .........Needle bearing, NSS
31      .........Protector ring, NSS
32      .........Cork ring, NSS
33   3852309-8   ...Screw (945090)
34   839013-0   ...Washer
35   832573-0   ...Clamp ring (15), up to 2890112 on drive gear unit
    839589-9   ...Clamp ring (16), up to 2898014 on drive gear unit
    851265-9   ...Clamp ring (42) from 2898015 on drive gear unit
35a   852705-3   ...Bearing tap, NSS (851263), from 2898015 on drive gear unit, replaced by 852705
35b   941807-0   ...Bearing bolt, from 2898015 on drive gear unit
36   956590-4   ...Screw
37   942598-4   ...Washer
38   853542-9   ...Bearing
39   832644-9   ...Bearing sleeve
40   943869-8   ...Shim, thickness = 0.05MM
    946179-9   ...Shim, thickness = 0.1MM
    943870-6   ...Shim, thickness = 0.2MM
41   943866-4   ...Shim, thickness = 0.1MM
    943867-2   ...Shim, thickness = 0.2MM
    943868-0   ...Shim, thickness = 0.4MM
42   897385-1   ...Shaft
43   814601-1   ...Sliding sleeve
44   3852296-7   ...Spring
45   26411-9   ...Spacer
46   951077-7   ...Lock ring
47   3852390-8   ...Needle bearing
48   3852390-8   ...Spacer ring
49   897313-3   ...Spacer ring
50   897312-5   ...Lock ring
51   839332-4   ...Nut, thickness = 2.00MM, alternative
    839333-2   ...Nut, thickness = 2,37MMm alternative
    839334-0   ...Nut, thickness = 2.65MM, alternative
52   3855787-2   ...Shift mechanism
53   3855785-6   ......Housing
54   897816-5   ......Eccentric piston
55   3856502-4   ......Sliding shoe
56   814184-8   ......Spring
57   60309-2   ......Ball
58   839136-9   ......Spring, up to 2829528
59   941338-6   ......Lock wire, up to 2829528 on drive gear unit, L=300MM
60   897711-8   ......Screw
61   897871-0   ......Washer
62   873291-9   ......0-ring (941866)
63   951924-0   ......Pin
64   942871-5   ......Pin
65   925093-7   ......0-ring
66   940169-6   ...Screw
67   876294-0   ...Rubber bellow
68   853013-1   ...Clamp
69   853012-3   ...Clamp
70   839351-4   ...Oil dipstick
71   955974-1   ...Ring
72   814687-0   ...Sign
73   804269-9   ...Screw
74   832716-5   Screw (15), up to 2890112 on drive gear unit 1/2''
    839696-2   Screw (16), up to 2898014 on drive gear unit M18
75   832570-6   Protecting cover
76   897873-6   ...Lock catch
77   943218-8   ...Screw
78   854661-6   Screw
79   873525-0   Sign
    839466-0   Sign