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Volvo L180C, Информация о сервисе


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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

Содержание L180C

Страница 1: ... 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 princip...

Страница 2: ...t 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 positio...

Страница 3: ...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 ...

Страница 4: ...e 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 ...

Страница 5: ...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 Positio...

Страница 6: ...in 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 ...

Страница 7: ...g 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 ...

Страница 8: ...gement 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 T...

Страница 9: ... 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 ...

Страница 10: ...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 Figu...

Страница 11: ...1233 with drive axles AH65 and 70 Op nbr 46643 E 765 Spanner rear axle E 1109 Spanner front axle Spring balance 0 25 kg 0 55 lb Bolt M 14 length 90 mm Bolt M 16 length 70 mm rear axle Bolt M 18 length 100 mm front axle Screw stud 5 8 UNC length 200 mm 2 pcs Shackle M 10 Removing 1 Lift and support the axle 2 Release the pressure in the brake system by depressing the brake pedal 30 40 times so that...

Страница 12: ... the oil from the hub reduction 6 Loosen the planetary retaine see Figure 1 7 Connect a hoist to the planetary retaine see Figure 2 Remove the planetary retainer and the sun gea Weight approx 40 kg 88 lb rear and approx 75 kg 165 lb front 8 Figure 2 1 Shackle M10 9 Connect a hoist to the hub see Figure 5 10 Remove the lock washer for the lock nut NOTE On the front axle the hub nut is secured with ...

Страница 13: ...ce on the slide ring seals WARNING Risk of injury by cutting 15 Prize away the slide ring seals and the O ring from the hub and from the brake housing cove 16 Figure 4 1 Bolt M14 length 90 mm 17 Prize away from the hub the inner oil seal which seals against the stub axle 18 Check that the wear ring on the stub axle is free from damage caused by wear Otherwise change the wear ring 19 Figure 5 Remov...

Страница 14: ...nd free from impurities and oil There is the risk otherwise that the rings might end up askew resulting in a leak Also do not use a rag which leaves fluff The lapped sealing surfaces must not be damaged or scored Make a support ring by joining the ends of a plastic hose O D approx 6 mm 0 236 in L 805 mm 31 69 in Put a piece of tape on the support ring plastic hose ring so that it forms a tab 23 Po...

Страница 15: ... is not twisted or lies in waves and that the slide ring is positioned at right angles to the axle 26 Adjust the discs so that the teeth align before assembling Position the wheel hub on the axle see Figure 5 NOTE Make absolutely certain that the hub is fitted at right angles to the axle so that the oil seals are not damaged or positioned obliquely 27 Figure 8 Pressing in slide ring 1 Slide ring 2...

Страница 16: ... very much for reading This is part of the demo page GET MORE Hydraulic System Setting Instructions Functional Description Electrical System And more Click Here BUY NOW Then Instant Download the Complete Manual ...

Страница 17: ...specifications page 0 8 32 Figure 10 1 Spring balance 2 E765 rear axle or E1109 front axle 33 Lock the hub nut with lock washer and lock ring see Figure 11 NOTE The washer can be fitted in two ways in order to double the locking possibilities The washer is also available in two versions NOTE On the front axle the hub nut is secured with lock screws Use locking fluid medium on these screws 34 Figur...

Страница 18: ...36 Fill oil in hub reduction and differential carrier assembly 37 Fit the wheel and remove the axle stands ...

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