7.1.1. Maintenance of a suspension bracket of the car


Fig. 6.1. Forward suspension bracket: 1, 4, 5 and 10 — arms; 2 — a frame longeron; 3 — the shock-absorber; 6 — a spring; 7 — a slip; 8 — a cup; 9 — a rubber spring of compression; 11 — an earring; 12 — a step-ladder; 13 — a beam; 14 — a nut; 15 — a finger; 16 — rubber plugs; 17, 20 and 21 — a washer; 18 — rubber-metal hinges; 19 — a bolt




Fig. 6.2. Back suspension bracket of motor vans: 1, 2, 9 and 10 — an arm; 3 — a pillow; 4 — an additional spring; 5 — a slip; 6 — laying; 7 — a step-ladder; 8 — a frame longeron; 11 — an earring; 12 — the rubber-metal hinge; 13 — a spring; 14 — the shock-absorber; 15 — a spring pillow; 16 — the rubber plug; 17 and 22 — a nut; 18, 20 and 21 — a washer; 19 — a bolt




According to scheduled works on a suspension bracket at its maintenance periodic tightening of nuts of step-ladders, nuts of bolts of rubber-metal hinges, details of fastening of arms of springs and shock-absorbers is necessary. Special attention is recommended to be paid on timely tightening of fastening of a rubber spring of compression (see fig. 6.1 and 6.2) as the weakened fastening can lead to its loss. In this case load of a forward spring significantly raises and its dynamic course increases that eventually will lead to a premature exit of a spring out of operation.
For increase in anticorrosive firmness of multilaminated springs it is necessary to grease periodically their sheets with graphite lubricant (in particular, at a partition or when replacing sheets), at its absence — the mix consisting of 30% of solid oil, 30% of graphite P and 40 of % of transformer oil.