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Technical data: TD/TAD420VE, TAD620VE, TAD650VE, TAD660VE
34
Group 20
Tightening torques
Nm
(lbf.ft)
Cylinder head
Screws to cylinder head are reusable only three times.
Step 1: ................................................................... 30
(22 lbf.ft)
Step 2: ................................................................... 80
(59 lbf.ft)
Step 3: ................................................................... 90° angle tightening
Group 22 Oil system
Oil cooler, screws .................................................. 21
±2
(15.5
±1.5
lbf.ft)
Oil cooler, screw plug ............................................. 80
(59 lbf.ft)
Front/oil pump housing ........................................... 21
±2
(15.5
±1.5
lbf.ft)
Oil suction pipe ...................................................... 21
±2
(15.5
±1.5
lbf.ft)
Oil sump ................................................................ 21
±2
(15.5
±1.5
lbf.ft)
Oil pressure pipe turbo ........................................... 29
±3
(21.4
±2.2
lbf.ft)
Oil pressure pipe engine block ............................... 39
±4
(29
±3
lbf.ft)
Screws, oil return pipe turbo
A) with tube fitting ............................................... 40
±2
(29.5
±1.5
lbf.ft)
B) with flange fitting ............................................ 21
±2
(15.5
±1.5
lbf.ft)
Screws, oil return pipe engine block ....................... 21
±2
(15.5
±1.5
lbf.ft)
Oil pressure switch ................................................ 18
±2
(13
±1.5
lbf.ft)
Group 23 Fuel system
Screw, governor, idler gear
(420/620)
:
Step 1: ................................................................... 30
(22.1
lbf.ft)
Step 2: ................................................................... 90° angle tightening
Screw, control rod hose ......................................... 10
±2
(7
±5
lbf.ft)
Screw, governor ..................................................... 17
±1.5
(12.5
±1
lbf.ft)
Flange screws, Injection pump
Step 1: Torque ....................................................... 5
(3.7
lbf.ft)
Step 2: Loosen screws for injection pump flange ... 60° counterclockwise
Step 3: Turn injection pump to stop ....................... Counterclockwise
Step 4: ................................................................... 60° angle tightening
Step 5: ................................................................... 7
(5
lbf.ft)
Step 6: ................................................................... 10
(7.4
lbf.ft)
Step 7: ................................................................... 30
(22
lbf.ft)
Flange screw, injector ............................................ 16
+5
(12
+4
lbf.ft)
Injector cap nut ...................................................... 40 – 50
(30 – 37
lbf.ft)
Delivery pipe
Use a new delivery pipe after every disassembly
Step 1: ................................................................... 5
(3.7
lbf.ft)
Step 2: ................................................................... 25
±3.5
(18.4
±2.6
lbf.ft)
Screw, stop magnet ............................................... 21
(15.5
lbf.ft)
Overflow valve ....................................................... 30
(22
lbf.ft)
Common Rail
, TAD650/660
Safety valve ........................................................ 100
(74 lbf.ft)
Rail pressuree sensor ......................................... 70
(51.6 lbf.ft)
Common rail unit ................................................. 30
(22.1
lbf.ft)
Fuel hose ............................................................ 39
(29
±3
lbf.ft)
IEGR
, TAD650/660
IEGR-unit: ........................................................... 20
(14.5
lbf.ft)
Solenoid valve: ................................................... 24
(18
lbf.ft)
Highpressure fuel pump
, TAD650/660
Step 1: ................................................................ 10
(7.4
lbf.ft)
Step 2: ................................................................ 50
(37 lbf.ft)
Summary of Contents for TAD420VE
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