Volvo L180C Istruzioni per l'uso e l'installazione
Service Information
Document Title: Function Group: Information Type: Date:
Description 400 Service Information 2014/5/29
Profile:
Description
The engine output torque is transferred to the transmission via the torque converter. The converter has a fixed stator. The
stator multiplies the torque. The multiplication is at its greatest when the engine is running at high speed and the turbine
rotor is stationary, e.g. when starting the machine. The torque from the torque converter passes through the transmission
and dropbox to the drive axles. In the differential gear the torque is divided out to the planetary hub gears and the wheels.
The transmission has four speed gears and two directional gears.
Figure 1
Power transmission, principle diagram
1 Engine
2 Torque converter
3 Transmission with dropbox
4 Propellar shaft
5 Front axle
6 Rear axle
7 Support Bearing
Service Information
Document Title: Function Group: Information Type: Date:
APS (Automatic Power
Shift)
420 Service Information 2014/5/29
Profile:
APS (Automatic Power Shift)
Description
L150 and L180 are as standard provided with APS (Automatic Power Shift), which is included in the control unit of the
Contronic system.
2nd gear is the basic gear and the gear in which the machine normally starts when operating with the selector in the
"A" (Automatic) position. During engine braking the accelerator control is fully released and the downshifting / engine
braking button, SW105, is pressed in. Downshifting takes place at the correct moment for the greatest possible engine
braking from 4th via 3rd to 2nd. If 1st gear is required, press in the kick-down button and 1st gear will be engaged, if the
travelling speed is below 10 km/h (6 mph). This takes place regardless of which gear was engaged initially.
Upshifting from 2nd to 3rd reverse takes place at a comparatively high speed. In that way the operator can decide when
upshifting should occur with the aid of the accelerator control.
If the downshifting / engine braking button, SW105, is kept pressed in while accelerating, upshifting is prevented, see also
[Invalid linktarget] .
Figure 1
Gear shifting, general principle
Description of function of manual gear shifting
Gear shifting
Gear selector control positions 1, 2 and 3 are manual positions, i.e. the operator selects the gear he or she prefers.
Over-speeding protection
During downshifting the control programme always checks that the speed is not too high for the selected gea. In which case
the engaged gear remains engaged until the speed has dropped to within the permissible range.
Kick-down function
Kick-down can only be activated in selector position 2.
1st gear is engaged if the speed is below 10 km/h (6 mph) within 5 seconds from when the kick-down switch is activated. 1st
gear remains engaged for at least 5 seconds, then upshifting to 2nd gear takes place when the gear-shifting point has been
reached. When changing travelling direction, the kick-down function ceases immediately and upshifting to 2nd gear takes
place.
Changing travelling direction
The machine starts off in the new direction in the same gear as before the new direction was selected.
Description of function during automatic gear shifting
Start (selector position A)
When starting from stationary, the machine moves off in 2nd gear. If the machine is already moving, 3rd gear will be
engaged.
Gear shifting
Gear shifting is automatic. Conditions for gear shifting are a combination of travelling speed and engine speed.
Gear shifting takes place between gears:
Forward: 2nd-3rd-4th
Reverse: 2nd-3rd
Gear shifting down to 1st takes place only after the kick-down switch has been activated.
Upshifting to 2nd then takes place automatically or when changing travelling direction.
The gear-shifting points vary depending on whether the engine is pulling or braking, according to the table shown below.
Gear shifting L150 L180
1 - 2 5.0 - 6.0 5.0 - 5.5
2 - 3 7.0 - 10.0 8.0 - 10.5
3 - 4 15.0 - 18.5 16.0 - 19.0
4 - 3 11.0 - 16.0 13.5 - 18.0
3 - 2 6.0 - 9.0 6.5 - 9.5
2 - 1 (Kick-down) 10.0 10.0
Kick-down function
Kick-down means that the operator requests gear shifting to 1st gear by activating the kick-down switch.
1st gear will be engaged, if the speed is below 10 km/h (6 mph) within 5 seconds from when the kick-down switch is
activated.
1st gear remains engaged for at least 5 seconds, then upshifting takes place according to the gear-shifting programme.
When changing travelling direction the kick-down function ceases immediately and upshifting to 2nd takes place.
Changing travelling direction
At low speed a change of direction takes place in 2nd gear and at higher speed in 3rd gear and downshifting to 2nd only
takes place when the machine has stopped and before it begins to move off in the opposite direction.
Speeds below approx. 18 km/h (11.2 mph):
2nd forward to 2nd reverse
3rd forward to 2nd reverse
4th forward to 2nd reverse
Speeds above approx. 18 km/h (11.2 mph):
3rd forward to 3rd reverse to 2nd reverse
4th forward to 3rd reverse to 2nd reverse
NOTE!
4th gear is blocked in connection with reverse gear, otherwise downshifting from reverse to forward takes place according
to the description above.
Service Information
Document Title: Function Group: Information Type: Date:
Downshifting switch,
engine braking
420 Service Information 2014/5/29
Profile:
Downshifting switch, engine braking
With the aid of switch SW105 the operator can achieve immediate downshifting in order to retard (brake) the machine.
When SW105 is activated, current is supplied to ECU connection EB14 and downshifting takes place as shown below.
At speeds above approx. 22 km/h (13.7 mph):
downshifting 4th to 3rd
3rd gear – no downshifting
At speeds below approx. 22 km/h (13.7 mph):
downshifting 4th to 2nd
downshifting 3rd to 2nd
If the switch remains activated, upshifting is prevented as long as the engine and/or transmission overspeeding protection
do not force upshifting to take place.
Figure 1
Wiring diagram
Service Information
Document Title: Function Group: Information Type: Date:
Differential carrier
assembly, Changing L150
w.e.fr. se. no. 1234
and L180 (AWB40)
460 Service Information 2014/5/29
Profile:
Differential carrier assembly, Changing L150 w.e.fr. se. no. 1234 and
L180 (AWB40)
Op nbr 46501
999 2628 Lifting chain
E 616 Trolley
E 1370 Support
Allen key 14 mm
Combination spanner 41 mm
Sleeve 41 mm (1.164 in)
Shackle 16 mm (0.630 in), 4 pcs
Sling 6 metre (20 ft)
Sling 12 metre (24 ft)
Torque multiplier
Buzzer alternatively indicating lamp
Removing
1. Lock the steering joint.
2.
Figure 1
Supporting machine
3. Raise the front wheels with the aid of the lifting frame.
Position support under the frame of the machine, see .
Figure 1
4.
Figure 2
Securing lifting frame
1 E 1370
5. Raise the lifting frame and position support, see .
Figure 2
Lower the lifting frame onto the support and tilt the bucket fully forward.
6. Remove the front mudguards and front wheels.
7. Drain the oil from the axle.
8. Remove plate guard for the brake pipes.
9. Tie up the propeller shaft and remove the propeller shaft flange bolted joint by the front axle.
10. Remove the hub retainers, half shafts and thrust washers.
11. Remove electrical leads and hoses to differential lock and brake. Use protective plugs or fit an ejecto.
12. Remove the protecting plates over the front axle attaching bolts.
13.
Figure 3
Removing front axle
1 Sling 12 metre (40 ft)
2 Shackle 16 mm (0.630 in), 4 pcs
3 E 616
14. Connect a hoist to the front axle and remove the attaching bolts.
Required lifting capacity approx. 600 kg (1323 lb). Lower the axle on E 616 and pull out the axle housing.
15.
Figure 4
1 Hook spanner or angled lock ring pliers
16. Remove the lock screw and screw in the diaphragm sleeve sufficiently far so that the dog clutch half will clear the
differential bearing cap.
17. Remove the differential from the axle housing.
Weight approx. 200 kg (441 lb).
18.
Figure 5
Removing differential carrier assembly
1 2628
19. Clean the differential and the axle housing contact surfaces.
Fitting
20. Apply sealing compound (silicone) to the axle housing sealing surfaces and fit the differential carrier assembly.
Tighten the bolts to 350 N m (258 lbf ft).
21. Position the axle housing on E 616 and roll it in under the machine.
Lift and secure the axle housing against the frame.
Tighten the bolts to 1170 N m (863 lbf ft).
Fit protecting plates over the bolt heads.
22. Fit the half shafts in the axle housing.
23. Fit brake discs and O-rings on the axle housing.
24.
Figure 6
Fitting hub retainer
25. Fit the hub retainers.
Tighten the bolts to 310 N m (229 lbf ft).
26. Rotate the pinion shaft and place the differential lock drive flange in maximum engagement by screwing the
diaphragm sleeve counter-clockwise until the differential lock drive flange is in maximum engagement, see
.
Figure 7
Check by rotating one of the front wheels of the machine forward and backward.
27. Then screw the sleeve clockwise four turns so that the differential lock becomes disengaged.
Lock the pushrod with the stop screw.
Tighten the stop screw to 30 N m (22 lbf ft).
28.
Figure 7
Adjusting differential lock
1 Hook spanner
29. Fit support washer, diaphragm and thrust washe.
Bolt on the cove.
NOTE!
The convex side of the support washer should be turned toward the diaphragm and the cover filter turned
downward, see [Invalid linktarget] item 16.
30. Connect electrical leads and hoses to differential lock and brake. Clamp the leads and hoses.
31.
Figure 8
Adjusting switch
1 Microswitch
2 Buzzer alternatively indicating lamp
32. Screw in the microswitch so that it just closes the circuit. Then screw out 1/4 of a turn.
Lock the microswitch with the nut.
Fit the protective cover over the microswitch.
33. Loosen the support bearing and fit the propeller shaft flange.
Tighten down the support bearing again.
34. Fit the protecting plates for the brake pipes.
35. Fill oil in the front axle.
36. Fit front wheels and mudguards.
37. Remove support, axle stands and steering joint lock.
Service Information
Document Title: Function Group: Information Type: Date:
Fitting rear axle 460 Service Information 2014/5/29
Profile:
Fitting rear axle
Op nbr 46008
999 3742 Sleeve
1. Place the axle in position under the machine.
Connect a hoist, see Fig. [Invalid linktarget]. Axle weight including mounting brackets approx. 1550 kg (3418 lb).
2. Lift the axle with the lifting device and secure the axle with a jack in order to prevent it from turning while it is
being lifted. Fit the attaching bolts. Tighten the bolts to 804 N m (593 lbf ft)
3. Place the wheels in position.
Tighten the nuts to 600 N m (443 lbf ft).
4. Connect brake hose, cabling to temperature senso, lubricating oil pipes and the hose from the breather filter to the
axle.
5. Connect the propeller shaft to the rear axle, see .
Figure 1
Tighten the bolts to 57 N m (42 lbf ft).
6. Lubricate the rear axle mounting bearings. Remove any supports.
7. Bleed rear brake circuit.
8.
Figure 1
Attaching propeller shaft
1 3742
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Altri manuali Volvo Caricatore multiterreno
