Hyster B238, Service Manual

Page: 14 / 15

1. DEF PUMP
2. DEF PRESSURE HOSE TO INJECTOR
Figure 12. DEF Supply Hose (Tier 4F/Stage IV)
Install
1.
Move the pallet with the after treatment sys-
tem under the truck.
2.
Install the cap screws that retain the after
treatment system to the frame.
3.
Re-connect the hoses and electrical connections.
4.
Install a new seal and move the flanges of the
insulated exhaust pipe and the Diesel Oxida-
tion Catalyst (DOC) against each other. See
Figure 13, item 8 and 9.
5.
Tighten the V-band clamp to 13.5 ± 1.5
N•m (10 ± 1 lbf ft).
6.
Install the flange seals and install the insula-
tion pipe to the engine.
7.
Tighten the V-band clamp to 7 ± 1 N•m (5 ±
0.7 lbf ft).
8.
Install the exhaust system.
a.
For High Mount System, see Exhaust
Pipes High Mount.
b.
For Low Mount System, see Exhaust
Pipes and Diffuser Low Mount.
Exhaust Seal Rings
In the high pressure part of the exhaust system,
the tubes and pipes are sealed by means of metal
seal rings. These seal rings deform when V-band
clamps are tightened and will stick to one of the ex-
haust components at disassembly. Remove the used
seal and replace by a new one at re-assembly. Pay
attention to the different sizes and shapes of seals
at the different locations. Pay attention to the dif-
ferent torque value of the V-band clamp at the con-
nection with the turbo. See Figure 13.
1. BAND CLAMP
2. V-BAND CLAMP AND SEAL RING 5” – SPHERI-
CAL
3. V-BAND CLAMP AND SEAL RING 4” – SPHERI-
CAL
4. V-BAND CLAMP AND SEAL RING 4” – SPHERI-
CAL
5. BAND CLAMP
6. V-BAND CLAMP AND SEAL RING 4” – SPHERI-
CAL
7. V-BAND CLAMP AND SEAL RING 4” – SPHERI-
CAL
8. V-BAND CLAMP AND SEAL RING 4” – STAND-
ARD
9. V-BAND CLAMP AND SEAL RING 3.5" – 70°
Figure 13. Exhaust Seal Rings
Remove and Install 0100 SRM 1978
10