743
Model Code Page
8050--8750
15D440
44. DPS
1. 8. 2000
1. 11. 1998
DPS on tractors with HiTech Shuttle
See picture 6C.
(HiTech: ---K41106. HiTech 2.0: K41107---).
1. The rearmost planetary gear clutch (C3) of DPS has been
modified in HiTech models so that pressure engages the
clutc h and it has an own solenoid valve. In connection with
the mechanical shuttle clutch C3 has cup springs and pres-
sure releases the disc pack. In addition, the number of the
discs in the rearmost clutch is 6+6 pcs (HiTech Shuttle), or
4+5 pcs (mechanical shutt le).
2. In connection with HiTech Shuttle all three DPS clutches
have their own solenoid valve and they are proportionally
controlled for a progressive engagement. The proportional
solenoid valves have been placed on two valve blocks on
thetractorframe,seepage440/25.
3. The number of the cup springs in clutches C1 and C2
has been increased. Also coil springs have been fitted on
the pistons of these two clutches of DPS.
Note! The electrical control of the DPS clutches and the
calibration of clutch pressures have been described under
code 370 (Autocontrol 5/5.2).
Modifications, HiTech 2.0 (K 41107--) :
The number of springs (4) has been increased from 6 to 9.
The lubrication drillings at the clutch C3 have been reduced
and drillings (3 off) to the planet gears have been added.
Planet carrier front end (in front of gear wheel Z20) has
been shaped so that it gathers oil and it is connected with
aid of lubrication drillings to the planet gear axles. The clut-
ches are delivered as a co mplete unit with correct thick-
ness. Due to the manufacturing reasons the splines of the
long PTO shaft has been moved into the DPS input shaft
(NOTE! Different lengths of the shafts).
Note! The long P TO shaft cannot be removed forwards
when the DPS is in place due to modifications in the front
end of the shaft.
1a) Pressure oil (0---1,8 MPa) to multi---disc clutch C1.
1b ) Pr e ss u re oil (0 --- 1, 8 MPa) t o m u lt i --- d i sc clu t c h C2.
1c) Pre s s u r e o il (0 --- 1, 8 MPa) to m u l ti --- d i s c c l u t ch C3.
2. Lubricating oil.
3. Return of lubricating oil and leak oil into the gearbox
housing.
3a. Plug for manufacturing of DPS.
4. Clutch C3 return springs (6 pcs / 9 pcs) for piston.
5. To be filled with universal grease when assembling.
6. Clutch housing fixing bolts (46 Nm). Loctite 243 on the
threads.
7. Planet gears are divided into classes (A ---E). The letter
marking is stamped on the side of each planet gear. All
threeplanetgearsshouldhavethesameletter.Sparepart
planet gears are delivered as a ready---made kit which in-
cludes three planet gears with same letter markings.
8. The planet gear letter markings must point towards the
sun gear midpoint when assembling the planetary gear.
9. The two push buttons of the 3---step quick---shift gear are
fitted in the speed gear lever knob.
10. When the planetary carrier is locked, lubricating oil is
allowed to flow through the tension pins into the planet gear
shafts and further into the planet gears.
Note! The tension pins must be knocked a little deeper
than the planetary carrier surface to facilitate free flow of
lubricating oil.
11.Thereisapianowireundertheintermediateringlock-
ing ring. See repair instructions for more details.
12. Distribution piece.
13 Springs (à 18 pcs) in the piston bores. The springs
cushion the function of the clutches.
14. Holes must align (pressure line of clutch C2).
To Next Page
Loading...
