FENDT 800 Vario S4 Series - 4.2 Cylinder head; 4.4 Fuel system; 4.5 Exhaust gas system

4.5.5 Fault analysis on A084 supply module / Y120 "AdBlue" (read faults / flush / check
SCR system) ......................................................4-243
4.5.6 AdBlue dosing system diagnostics using the FENDIAS diagnostics program
(Deutz-Serdia) ......................................................4-281
4.5.7 AdBlue dosing system: AdBlue consumption and fuel consumption ..........4-300
5 Overall system/front axle ................................................. 5-1
5.1 Suspension ........................................................5-3
5.1.1 Functional plans .................................................5-3
5.1.2 Disassemble and reassemble suspension cylinder .......................5-10
5.2 Cardan shaft ......................................................5-12
5.2.1 Technical drawing: Front-wheel drive shaft .............................5-12
6 Steering ................................................................. 6-1
6.1 Steering ...........................................................6-3
6.1.1 Steering hydraulics ...............................................6-3
6.1.2 Steering hydraulics ...............................................6-4
6.1.3 Steering monitoring ...............................................6-8
6.1.4 Remove the steering servo unit. .....................................6-10
6.1.5 Install the steering servo unit .......................................6-13
6.1.6 Remove the RÜFA steering servo unit ................................6-16
7 Vehicle layout ............................................................7-1
7.1 Layout ............................................................ 7-3
7.1.1 Remove, install and repair turntable from operator's seat (Rüfa) ...............7-3
8 Overall system/air conditioning system ....................................8-1
8.1 Air-conditioning system ............................................8-3
8.1.1 Diagram: Automatic air conditioning system .............................8-3
8.1.2 Air conditioning unit service hatch ....................................8-6
8.1.3 Removing the air conditioning unit (HVAC) ..............................8-8
8.1.4 Installing the air conditioning unit (HVAC) ..............................8-13
8.1.5 Removing the air box (B071, M015, M016) .............................8-18
8.1.6 Installing the air box ..............................................8-20
8.1.7 Assembly and disassembly of the dryer module for the air conditioning condenser
..................................................................8-23
9 Cab ......................................................................9-1
9.1 Cab ...............................................................9-3
9.1.1 Reverse drive control function and operation ............................ 9-3
9.1.2 Remove the cab .................................................9-7
9.1.3 Attaching the cab ...............................................9-15
9.1.4 Glue in the front windscreen .......................................9-22
9.1.5 Tightening torques of the door furniture ...............................9-28
10 Power lift/EPC electro-hydraulic control ..................................10-1
10.1 Power lift/EPC electro-hydraulic control ...........................10-3
10.1.1 Slip control system operation and function ............................10-3
10.1.2 Functional description of B031/B032 - draft sensing pin left/right ............10-4
10.1.3 EPC valves ...................................................10-8
10.1.4 Functional plans ...............................................10-13
10.1.5 Lower link stabilizer functional plan .................................10-25
10.1.6 Remove the rear EPC valve ......................................10-26
10.1.7 Fit the rear EPC valve ...........................................10-29
10.1.8 Dismantle the rear pressure relief valve DW Y062 ......................10-34
10.1.9 Assemble the rear pressure relief valve DW Y062 ......................10-35
Table of contents
FENDT 800 Vario S4
X990.005.530.013
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