666
Model Code Page
42. Gearbox
1. 8. 2000
420 2
6000--8950
1. 1. 1995
Technical data
Number of gears (numbers in brackets refer to tractors with quick---shift gear) ((Delta P o wershift)):
--- f or w a rd s 12 (24) ((36)).....................................................................
--- reverse 12 (24) ((36)).......................................................................
Oil
(common to transmission and hydraulics)
Viscosity and quality grade: see page 130/4.
Oil volume: see page 130/4.
W arning lights for gearbox oil pressure and temperature. Oil cooler as standard.
Pressure lubrication for input shaft and bevel pinion shaft.
Lubricating oil pressure---relief valve, opening pressure 0,2 MP a................................
Suction strainer, degree of separation 125
m...............................................
Pressure filter, filtration capacity
β10=75....................................................
Differences between gearboxes on 6100-- 8400 tractors, which have a 2--speed quick-- shift gear
Transmissio n 30 km/h Transmission 40 km/h
Number of teeth 6100---6400 6600, 8100 6100---6400 6600, 8100
8000 8400 8000 8400
--- bevel pinion shaft/crown wheel Z7/Z40 Z7/Z40 Z9/Z38 Z9/Z38
Gears for 4WD:
--- in front end of bevel pinion shaft Z34 Z28 Z39 Z33
--- in front end of transmission shaft Z41 Z47 Z35 Z41
Differential
---numberofdifferentialpinions 2pcs 4pcs 2pcs 4pcs
Tractors with ground speed PTO; there is a coupling, selector for k and shaft for PTO in the gearbox. Transmission 50 km/h, see
pictures on pages 420/8 and 9. Tractors with Delta Powershift, see the next page 420/2A.
Tightening torques
Gearbox
Bevel pinion shaft ring nuts (+transmission shaft ring nut) 270 Nm..............................
Input shaft front end cover 21---25 Nm........................................................
Layshaft front end cover 21---25 Nm..........................................................
Gearbox side cover screws 50 Nm........................................................
Differential
Crown wheel fixing bolts 110 Nm..........................................................
Differential bearing cover screws 40---50 Nm...................................................
Frame joints
Ge a rb ox --- f ue l t a n k :
--- upper studs 270---330 Nm...................................................................
--- lower hexagonal socket---head screws 125 Nm............................................
Ge a rb ox --- re v e rs e sh u t t l e 2 1 --- 25 N m.........................................................
Ge a rb ox --- p o w e r t ak e --- of f :
--- upper studs (8 pcs) 270---330 Nm............................................................
--- l o w e r s tu d s (6 p cs ) 72 --- 8 8 N m............................................................
Ge a rb ox --- b r a k e hou s in gs 2 70 --- 330 N m.........................................................
Propeller shaft flange joints 35 Nm........................................................
Settings
Gearbox
Pinion shaft rolling resis tance measured with torsion meter at front end of shaft
(without differential) 1,7---2,3 Nm..............................................................
Input shaft end float 0,025---0,075 mm..............................................................
Layshaft end float 0,025---0,075 mm................................................................
Differential
Differential bearing preload measured with torsion meter at front end of bevel pinion shaft
=pinion shaft rolling resistance+ +0,6---1,7 Nm (Z7/40, Z8/42)...................................................
+0,8---2,2 Nm (Z9/38)
+1,0---2,8 Nm (Z11/37)
Tooth backlash, pinion/crown wheel 0,175---0,325 mm................................................
Sealing compounds and locking fluids used
Reverse shut tle---gearbox, se aling Hylosil RTV Grade 102 Black
Power take---off---gearbox, sealing Hylosil RTV Grade 102 Black
Brake housings---gearbox, sealing Hylosil RTV Grade 102 Black
Side cover---gearbox, sealing Hylosil RTV Grade 102 Black
Threads on selecto r fork rails (+transmission s haft ring nut), Loctite 242
Crown wheel fixing bolts, Loctite 273
To Next Page
Loading...
Need help?
General
