Y- 7.
Y- 7.
Assembly Adjustment (Traveling Device) 8. Hydraulic suspension
9. Retightening the hub nuts
8.1 Releasing pressure in the accumulators for hydraulic suspension
・ Retighten the hub nut with the tightening torque of
When disassembling the components and pipings
・ Retighten hub nuts after checking the brake force
640 ± 30 N•m {6500 ± 300 kgf•cm} (472±22ft·lbf).
(See “6. Braking force”.), and before shipment. (The hub nuts must be settled before retightening. When the load is applied to the wheel mounting sections during braking force check, the nuts settle.)
in the hydraulic suspension, release pressure in the accumulators beforehand in the method described below. 1. Perform vehicle height increasing operation of the crane in on-rubber operation configuration. After the suspension is extended to its stroke end, lock the suspension.
・ Put the retightening torque for the hub nuts (the torque of the latest tightening) on the hub nut torque check record.
2. Extend the outrigger jacks to make the 4 wheels clear of the ground. 3. After setting the outrigger extension/retraction selector to the neutral, press the suspension free switch. [NOTICE] Before proceeding to the next step, wait at least 20 seconds after you press the switch. 4. Loosen the clasp of the hoses connected to the retraction port of each of 4 suspension cylinders carefully and slowly. If no pressure remains, you can remove the clasps. If pressure remains, repeat the step 3.
2 345-804-13000 △
45
WY05-3580E
