URAL Motorcycles URAL-4320-60, Руководство по эксплуатации

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In doing so, the plug of the expansion tank filler should be open. The estimated volume
of the coolant not drained with the cab heater’s cook being open amounts to 2 l.
Do not run engine upon draining the coolant to remove the remaining water from the sys-
tem. That can cause failure of rubber packing rings of cylinder liners, falling out of valve seats,
burning-through and distortion of block heads.
5.1.5 Power Unit Suspension
The power unit is mounted on four resilient supports: front, rear and two centre supports
— left and right.
The front and intermediate supports are carrying ones. Rear support is of bearing type,
mounted in unloaded condition using adjusting plates 9, according to Fig. 28. The power unit
is mounted on beams 3 and 11 with its front and rear supports, with centre — on the brackets
which are secured to the truck frame.
Brackets 2, 7, 12 serve as supports for the power unit. Front support bracket 12 is secured
to the engine block front cover, while centre support brackets 2 — to the flywheel housing,
and rear support bracket 7 to the rear end face of the gearbox.
Cushions 1 of the left-hand and right-hand centre supports are interchangeable.
Also cushions 4 and shock absorbers 5 of the front and rear supports are interchangeable.
0-1 mm clearance between cushion 4 and rear support bracket 7 should be maintained to
mount the rear support in unloaded condition.
For this purpose perform adjusting in the following sequence of operations:
1. Unscrew nuts 8 and undo bolts 10.
2. Remove adjusting plates 9.
3. Measure the clearance between bracket 7 and cushion 4. A clearance exceeding 1 mm
should be eliminated by using adjusting plates 9.
4. Fit bolts 10 and tighten nuts 8.
1-intermediate support pad; 2-intermediate supports bracket; 3-front support beam; 4-front and rear sup-
ports pads; 5-front and rear support shock absorber; 6-front and rear support bracket; 7-rear support brack-
et; 8-nut; 9-adjusting plates; 10-bolt; 11-rear support beam; 12-front support bracket; I- front support; II-
intermediate support; III-rear support
Fig. 28 - Power Unit Suspension