RK type «NV125/LWX-500»
Technology for replacing the stuffing box of the output flange of the PK type «NV125/LWX-500» to the rear drive is similar to the technology for replacing the oil seal of the semi-axis of the PK and the oil seal of the flange of the input link of the PK type «ATS 500». In this case, the CV may not be removed, but it is necessary to remove the exhaust gas system and disconnect the cardan shaft from the CV.
The flange must first be fixed (3, fig. 10.18) adaptation «23.0.020» and using the tool «23.2.320», unscrew the nut (1).
Screwing the bolt on fixture «33.1.150», (pic. 10.19) remove the flange and remove it to gain access to the stuffing box. Remove the seal with a tool «23.0.490», having previously made a hole in the stuffing box, for which use a core.
The new seal is pressed in with a tool «27.1.380» flush into the crankcase opening.
Nut (1, see fig. 10.18) replace the flange fasteners, apply a sealant of the type «Loctite 270 or «Hilogrip». Screw the flange up to the stop and tighten its fastening nut to a torque of 110 Nm (11.0 kgf·m) for RK type «NV125» and torque 300.0 Nm (30.0 kgf·m) for RK type «LWX500». lock nut (1) punching at points (2, see fig. 10.18).
Upon completion of work, check the oil level in the valve and, if necessary, restore it. Check the tightness of the assembly.
RK type «ATS 500»
Technology for replacing the stuffing box of the output flange of the PK type «ATS 500» to rear-wheel drive is similar to the technology for replacing the RK type oil seal «NV125/LWX-500». In this case, it is necessary to prepare devices «23.0.490», «27.1.400» And «33.1.150», remove the PK and retaining ring (8, see fig. 10.1b).
Using fixture «33.1.150» unscrew the flange. Make a hole in the stuffing box with a core, install the fixture «23.0.490» and knock out the stuffing box from the housing of the Republic of Kazakhstan.
Before installing the gland, replace the ring (6, see fig. 10.1b) round section (31x2.5) flange and make sure it is installed correctly.
The installation of a new oil seal should be carried out using a mandrel «27.1.400».
Attention! When installing the flange, the shaft may move, and then it will not be possible to install the retaining ring.
When installing a flange on an output shaft with a mounting groove (1, fig. 10.20) follows:
- install flange;
- with two mounting blades (3) press the flange downwards or the output shaft (2) moving upwards so that the groove for the retaining ring becomes completely visible;
- install retaining ring.
When installing a flange on an output shaft without a mounting groove, support the CV by placing it under the input shaft (2, fig. 10.21) suitable sleeve (1).
Upon completion of work, check the oil level in the valve and, if necessary, restore it. Check the tightness of the assembly.