HYDRAULIC
GROUP 70
DISMANTLING THE MAIN HYDRAULIC PUMP
70-3-40 EN
06 / 09 / 2002
KP 02 MNT
INSTRUCTIONS FOR REPLACING THE SEALS
PUMPS SERIES KAPPA 30/30 "LOAD SENSING"
5.00
21.80+0.07+0.02
26.00
14.00 15.00
18.5
3.2 1.6
1.6
1.6
R 2.50 2.00
M8
7
25.0
0
27.5
0 40.0
0
29.0
028
.00
12.5
0
0-0.10
19.
15
0+0.
10
24.00+0.20+0.10
25.00+0.20+0.10
5.50
==
15
.00
3.2 1.6
AM
NM
O40
0/04
99AM
NB
004
0/04
99
Special tool for installing the shaft seal
Special tool for the rotation test on thepump after assembly
ANSI B92.1 classe 113 Dents - 16/32 D.P.Fond plat - Centrage sur flancsAngle de pression 30°
Arrête vive
ø34
THIS CATALOGUE REPLACES UPDATES
Code Edition Code Edition New Changes
KP 04 MNT 05/1999
General Recommendations
Make sure the components have not been damaged in transport. Always work in a cleanenvironment. Clean all parts (except seals) with a solvent and blow clean, dry air through thembefore reassembly. Be careful not to damage the seals. Avoid negligence or any otherdeterioration of machined surfaces. The parts must be assembled without resistance whichwould indicate incorrect assembly or the parts assembled are not exactly correctly positionedwith respect to each other. If hand pressure is inadequate to place a part fully in position, use arubber mallet. Never use a metal head!! Make sure that the torque settings used for the screwsmatch the values given in the appropriate tables.
List of tools:
ViceSpecial tool for installing the shaft sealVertical pressTool for protecting the shaft seal on assembly of the front flangeSpecial tool for the rotation test on the pump after assemblyTorque wrenchOil and greaseEmery cloth
1
OPERATIONS TO PERFORM TO REPLACE THE SEALS ON KP 30 PUMPS -LOAD SENSING VERSION A
Fit the jaws of the vice with clamps made ofaluminium or soft material to avoid damaging themachined surfaces of the pump.
Position the pump vertically with the driveshaftpointing downwards, then tighten the vice. Be carefulnot to damage the machined parts while tightening.
Draw a mark with a felt tip on the pump to ensurecorrect part reassembly.
Loosen the mounting screws with a wrench.
Remove the rear cover and screws.
Remove the ring seal
A1
A2
A3
A4
2
A
Loosen the mounting screws using a wrench.
Remove the screws.
Position the pump vertically with the driveshaftpointing upwards.
Remove the front cover with a rubber mallet.
Draw a mark with a felt tip on the bearing and thebody to ensure correct part reassembly.
A5
A6
A7
A8
3
A
Release the bearing.
Remove the input and output shafts.
Release the lower bearing and draw a mark on thebearing and the body to ensure correct reassembly.
Remove the ring seal
A9
A10
A11
A12
4
A
Remove the compensation ring and reinforcement onthe four bearings and replace with grease.
Place the lower bearing carefully into the body until itcomes into contact with the body; the seal must bepointing downwards.
For orientation, the previously drawn mark (on thepump body and the bearing) will prevent any error onreassembly.
Insert the input and output shafts into the body of thepump until they are in contact with the lower bearing.
Be careful not to reverse the positions of the shafts;respect the original position.
Place the upper bearing carefully into the body until itcomes into contact with the gears; the seal must bepointing upwards.
For orientation, the previously drawn mark (on thepump body and the bearing) will prevent any error onreassembly.
A13
A14
A15
A16
5
A
Place the cover on the workbench and remove thering using pliers.
Set the front cover turned downwards. Release theshaft seal using a tool. Be careful not to damage themachined parts.
Smear a thin layer of grease around the shaft seal tofacilitate assembly. Now use the special tool to installthe shaft seal and push it into place in its housing untilthe seating of the ring becomes visible.
Insert the ring using pliers.
A17
A18
A19
A20
6
A
Coast the tool used to protect the shaft seal whenmounting the front cover, with uncontaminated greaseor oil and insert it onto the input shaft.
Fit the front cover without damaging the lip of the seal,making sure that the guides are slotted into theirhousings.
Position the pump vertically with the driveshaftpointing downwards, then tighten the vice. Be carefulnot the damage the machined parts while tightening.
Tighten the screw using a torque wrench set to torque14 (daNm), using diagonally opposed movements.
Insert the ring seal with grease.
Place the rear cover on the vice.
Loosen the stopper using a wrench.
A21
A22
A23
A24
7
A
Remove the ring seal from the stopper and replace itwith a new one.
Tighten the spring-loaded stopper using a torquewrench set to torque 5 (daNm).
Loosen the stopper using a wrench.
Remove the ring seal from the stopper and replace itwith a new one.
A25
A26
A27
A28
8
A
Tighten the stopper using a torque wrench set totorque 5 (daNm)
Position the pump vertically with the driveshaftpointing downwards, then tighten the vice. Be carefulnot to damage the machined parts while tightening.
Assemble the valve, screwing the assembly by hand.
The previously drawn marks (on the pump body andthe cover) prevent any possibility of making mistakeson reassembly.
Tighten the screw using a torque wrench set to torque7 (daNm), using diagonally opposed movements.
To check the torque in operation, turn the input shaftto make sure that it turns freely and that no mistakeshave been made during assembly.
A29
A30
A31
A32
9
Our policy is to work towards constant product improvement; for this reason product characteristics are subject tochange without prior notification.
10
PUMP (details)
11
PUMP (details)
1 – SPRING PLUG FOR LS VALVE
2 – PUSHING SPRING FOR LS VALVE
3 – THROTTLING GRUB SCREW (RED)
4 – SPRING FOR LS VALVE
5 – DRIVE GEAR
6 – COVER
7 – CIRCLIP
8 – SHAFT SEAL BAUD
9 – SLEEVE BEARING
10 – O-RING SEAL
11 – THRUST PLATE
12 – DRIVEN GEAR
13 – O-RING SEAL
14 – BACK-UP RING
15 – BODY
16 – REAR COVER
17 – SCREW
18 – WASHER
19 – SCREW
20 – WASHER
21 – STEEL BUSHES
23 – PLUG
24 – SCREW
25 – O-RING SEAL
26 – FILTER
27 – PLUG
28 – THROTTLING GRUB SCREW
29 – SPOOL
30 – O-RING SEAL OR
12
HYDRAULIC DIAGRAM70-6-M87 EN
25 / 09 / 2002
3
CONTENTS
– MT 1030 S Série 1 HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . 4
4
HYDRAULIC DIAGRAM MT 1030 S Série 1
B2B1
VV
L
FDAR
MC
RLF
FDAV
SCFR
(O)
VAFR
(O) PF
R
VDAV
VDAR
Ø1
Ø 0.
7
320
0 cm
/tr
140b
200b
LR
PT
LS
200b
BA
T
12
3
P
AR
AV
12
3
12
3
PD
D3
125
mic
rons
104L
Rés
erve
dire
ctio
n(1
28 li
tres)
43,7
7 cm
3 /trC
FEF
LS
PRF(
O)
CA
R
N
MP
ESAV
ESAR
5
HYDRAULIC DIAGRAM MT 1030 S Série 1
C4
C3
C2
C1
P2
P1
100b
V1V228
0bC1
C228
0b
V1V210
0bC1
C2V2
V1C1C2
V2V1C1
C2
300b
C2
C1
V2
V1
300b
110b
315b
C2C1 V1
V2
+15 0
125
mic
rons
190b
AB
AB
AB
280b
240
b
AB
280b
AB
BA
190b
104L
Rés
erve
dire
ctio
n(1
28 li
tres)
43,7
7 cm
3 /trC
FEF
LS
5b6b
PAAV
(O)
EVTF
(O)
PAAV
VVT(
O)
VAI
PRF(
O)
VS
CPD
VS
VAS
CSP
VI VC
CSP
VLV
T2
VT
1
CS
D
CSP
EIE
CA
EE
EES
ESE
R
N
MP
P
FRVA
CM(O
)
0+15
315b
110b
0+15
315b
110b
10 µ
1èr
e mon
te
6
HYDRAULIC DIAGRAM MT 1030 S Série 1
CA Suction strainerCPD Double piloted valveCSD Double safety valveCSP Piloted safety valve
D Valve bank (6) sectionsEA Attachment sectionEE Inlet sectionEI Tilting sectionEL Lifting sectionES Outlet sectionESD R.H. stabilizer sectionESG L.H. stabilizer sectionET Telescope section
D3 Driving valve bank 3 positionsPosition 1 : Steering shortPosition 2 : Steering front wheelPosition 3 : Crabe position
ESAR Rear axleESAV Front axleESS Stabilizer safety electrovalveEVTF(O) Jib head electrovalve (Option)
FDAR Rear disk brakeFDAV Front disk brakeFR Return filter
M I.C. EngineRating slow unladenNominal rating loadMax. Rating unladen
MC Master cylinder
N Level
P Hydraulic pumpPAAV Front attachment fittingPAAV(O) Front attachment fitting (Option)PD Steering pumpPFR(O) Trailer braking fitting (Option)PP Pressure testPRF(O) Drain-back fitting (Option)
R Hydraulic tankRLF Braking oil tank
SCFR Trailer braking circuit selector (Option)
7
HYDRAULIC DIAGRAM MT 1030 S Série 1
VACM Movements cut-off valve (Option)VAI Insulation valveVAFR(O) Trailer braking valve (Option)VC Compensation cylinder DEVDAR Rear steering cylinder DEVDAV Front steering cylinder DEVI Tilting cylinder DEVL Lifting cylinder DEVSD R.H. stabilizer cylinder DEVSG L.H. stabilizer cylinder DEVT1 Telescoping cylinder 1 DEVT2 Telescoping cylinder 2 DEVVT(O) Locking carriage cylinder DE (Option)
NOTE : 1 - The main relief valve's pressure, on inlet sections are given at engine's maximum rating.
2 - The secundary valve's pressure, are given at 1000 rpm of the engine.
3 - Pressure relief valve's control must be done at an oil temperature of 50°C.
8