In the article, we will consider the removal and installation of the balancer axis, and the replacement of torque rods
In the previous article, we looked at replacing the rear suspension springs
Replacing the axle of the rear suspension balancer
The balancer axle with bracket assembly must be replaced:
- - with radial movement of the spring shoe, which cannot be eliminated by adjusting and replacing bushings;
- - mechanical damage (breakage, axle bending, bracket cracks, etc.)
Remove balancer axle with bracket assembly
We remove the rear spring, as described in the article "Replacing and repairing the springs of a KamAZ car"
With a 46 spanner wrench, unscrew the nuts of the fingers of the lower torque rods, remove the spring washers and press the fingers out of the bracket of the balancer axis
Using a 13 socket wrench, unscrew the bolts of the shoe cover, drain the oil into the prepared container and remove the cover with the gasket
Using 19 wrenches, unscrew the nut of the coupling bolt of the spring shoe nut
Unscrew the shoe nut and remove the spring shoe
Using a 55 socket wrench, unscrew the nut securing the tie rod brackets of the balancer axles and loosen the second nut at the opposite end of the tie
Installing supports for the brackets of the balancer axles (perform with an assistant)
Using a 41 socket wrench, unscrew the nuts securing the brackets of the balancer axles to the brackets of the rear suspension
Raise the rear of the car until the studs of the rear suspension bracket exit the holes of the balancer axle bracket
Remove the axle assembly (perform together with an assistant)
Installing the balancer axle with bracket assembly
We install the balancer axle with the bracket assembly on the stand, putting the bracket on the screed, and tighten the screed nuts (we do it together with an assistant)
We lower the rear of the car and fix the brackets of the balancer axles to the suspension brackets with nuts
We install the shoe bushings, the spring shoe with the cuff and tighten the split nut so that the balancer does not turn by hand, then unscrew the nut by 1/6 turn and tighten the coupling bolt nut with a torque of 78.2-98.1 Nm (8 -10 kgcm) (perform together with an assistant)
Install the gasket and secure the shoe cover
Pour TSp-15K oil into the shoes to a level of at least 60 mm from the lower edge of the filler hole and tighten the plug
We insert the fingers of the torque rods into the bracket of the balancer axis and put on the spring washers, tighten the nuts of the fingers with a torque of 353-392 Nm (36-40 kgcm)
Installing the rear spring "Replacing and repairing the springs of a KamAZ car"
Replacing torque rods
The reaction rod must be replaced with the following faults:
- - wear of ball surfaces of fingers and liners. An external sign of wear is the presence of free play in the ball joints of the boom;
- - rupture, wear of the dirt-proof gland;
- - mechanical damage to the rod
Removing the upper torque rod
Removing several platform floor panels
We unpin and unscrew the nut of the ball pin and press it out with a puller from the lever of the rear suspension torque rod
Unscrew the nuts of the puller 5, remove the cover 4, pass the rod between the puller studs
We put cover 4 on the studs and tighten the nuts 5
We start wedge 3 until it stops between the ends of the rod tip and the eye of the finger, while screw 1 should be in the extreme right position
Tighten the nuts 5 and, screwing the screw 1 into the body 2, press the pin out of the eye
In the same way, we perform for the pin of the head of the rod, fixed in the bracket of the upper jet rod
Replacement of liners and fingers of torque rods is carried out with axial play in the torque rod of more than 1.3 mm
Installing the upper torque rod
Install the rod head pin into the upper torque rod bracket, put on the spring washer and tighten the pin nut with a torque of 353-392 Nm (36-40 kgcm)
We do the same for the rear suspension torque arm
We lubricate the ball joints of the heads of torque rods through grease fittings with Litol-24 grease
We remove the lower jet rod and install it in the same way
Adjusting the axial clearance in the balancer shoe
We lift the car by the frame and place it on stands. We provide the ability to rotate the balancer by separating the ends of the rear spring from the axle supports or by removing the spring
Tighten the split nut so that the balancer does not turn from puki
We unscrew the nut by 1/6 of a turn, tighten the coupling bolt with a torque of 78.2-98.1 Nm (8-10 kgcm) and check the possibility of turning the balancer.
If the balancer does not turn, additionally loosen the split nut after loosening the coupling bolt
When disassembling the balancing device, in case of wear of the axles and bushings of the balancing device shoes above the permissible value, it is necessary to grind the axles until the traces of wear are eliminated and install repair (reduced in inner diameter) bushings.
With a nominal diameter of the balancer axle of 87.93-88.00 mm, the nominal clearance between the axle and the bushings should be 0.120-0.305 mm.
The gap between the axle and the bushings, which is not repairable, is not more than 1.0 mm