AR32.20-B-0201D | Disassemble/assemble front spring | 12.02.16 |
Vehicle 979 with Cumbustion engine 612.983, 904.943, 904.970
B32.20-0085-09
1 Full front spring (composed of two blades)
2 Adapters (eye bolts) of master blade for housing of bushes
3 Assembled joints bushes in the adapters
4 Master screw of spring (stem screw)
5 Self-locking nut of the master screw
6 Metal separator positioned between two blades at the central part
7 Front spring of the master blade
8 Second blade
9 Metal wedges on the top center
10 High density polyethylene pads
11 Clamp riveted on the second blade
12 Clamp closing screw
13 Self-locking nut of the clamp screw
14 Spacer bush of the clamp
| Remove | ||
1 | Remove the springs of vehicle | ||
Spring length measurements with normal load | Measurement A | ||
2 | Fix the spring in a vise with protected mordants and at the rear end of spring, remove from clamp (11) the lock nut (13), screw (12) and spacer bush (14) | ||
3 | Remove the self-locking nut (5) and master screw (stem screw) (4) | Introduce a long pin in place of the master screw to remove the wedges, blades, and spacers. | |
4 | Remove the upper two wedges (9), master blade (7), metal separator (6) | Upper metal wedges (9) do not use spacers. | |
5 | Remove the polyethylene pads (10) from the second blade ends (8) | Pads are placed in oblong holes on the blade (8). | |
6 | Remove second blade (8) | ||
| Clean | ||
7 | Clean thoroughly all springs components | Leaf of spring must not be washed with water jets or acids. Dry clean the blades if there is an oxidation, remove them with a steel brush and apply an appropriated protection. Original springs are painted with zinc-based paint. Spring blades must not be welded or abraded under any circumstances. | |
| Check | ||
8 | Check the leaf of spring and other components regarding their status | If necessary, replace them: Kneaded or deformed blades. Deformed clamps. Self-locking nut of kingpin and clamps. | |
Worn or cracked master blade. | |||
Worn or cracked second master blade. | |||
Worn kingpin (stem screw). | |||
Metal spacer (6). | |||
Deformed upper wedges (9). | |||
Polyethylene pads on the blade. | |||
Articulations bushes (3) of the adapters (2) and shackles must be replaced. | |||
| Assemble | ||
9 | Replace the adapter (2) bushes (3) of the master blade (7) and shackle | Use an appropriate mandrel and vise. | |
When assembling, centralize bushes (3) from the edges of the adapters (2). | |||
10 | Install new polyethylene pads (10) on the second blade (8). | Check that the polyethylene pads are correctly placed in the oblong holes of the blade. | |
11 | Lubricate with recommended grease all leaf spring surface, wedges, and metal separators | ||
12 | Assembling the master blade (7) with adapter (2) in the second blade circle (8), assemble the metal separator (6) between blades and two metal wedges (9) in the upper part of spring | Use as a kingpin of same master screw diameter (4) which can be fixed in a vise to allow the leaf spring is assembled erected, in other words, in the working position. | |
13 | Assembly the riveted clamp (11) on the second blade of spring the spacer bush (14), new screw (12) with a new self-locking nut (13) and tighten nut in the appropriated time | | |
14 | Tighten the self-locking nut (5) of the master screw (4) in the appropriated time | If it is necessary to fix the master screw head (4) in a vise, protect the mordants of the vice with aluminum or copper. | |
| |||
Total height of the spring in center, assembled with tight kingpin. | |||
15 | Remove excess of grease on the blades of spring | If spring remains in stock, put an adhesive tape on the cylindrical part of screw or protect it with appropriated cap. Close the bushes on the adapters. | |
16 | Install springs in vehicle |
Front axle steel suspension
Número | Denominação | Vehicles 979.013/016 | Vehicles 979.046 | |||
BE32.20-B-1001-01B | Total "A" length of the front axle springs | Under normal load | mm | 1600 3 | 1600 3 | |
BE32.20-B-1002-01B | Total straight length "B" from the front axle springs center to the front end | Under normal load | mm | 800 1.5 | 8001.5 | |
BE32.20-B-1003-01B | Metallic separator (6) thickness fit between the blades (7) and (8) | In the central part | mm | 1.0 | 1.0 | |
BE32.20-B-1004-01B | Master bolt (dowel pin) nominal diameter | mm | 10.5 | 10.5 | ||
BE32.20-B-1005-01B | Master blade (7) thickness | In the central part | mm | 18.5 | 20.5 | |
BE32.20-B-1006-01B | Second blade (8) thickness | In the central part | mm | 18.5 | 20.5 | |
BE32.20-B-1007-01B | High-density polyethylene pads between the blades (7) and (8) | At the edges | mm | 6.0 | 6.0 | |
BE32.20-B-1008-01B | Thickness of the shims assembled in the front axle springs master blades upper part | In the central part | mm | 8.0 | 8.0 | |
BE32.20-B-1009-01B | Total height of the front axle assembled springs and with the master pin tightened | Reference measurement in the central parts | mm | 54 | 58 | |
Front axle steel springs
Número | Denominação | Chassis 979.0, 979.2 | |||
BA32.20-B-1002-01C | Front spring master bolt (spikes) | M10x1.5 | Nm | 42 | |
BA32.20-B-1003-01C | Self-locking nut of front spring clamp | M8x1.25 | Nm | 22...24 | |
Produtos para reparos
Número | Denominação | Número de pedido |
BR00.45-B-1010-06A | Grease as per DBL 6820.20 | - |