Hyster B238, Service Manual

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AIR FILTER ASSEMBLY (TIER 4F/STAGE
IV)
Remove
1.
Open left-hand and right-hand hood door. See
Hood Assembly.
2.
Tag and disconnect the connectors to the vac-
uum switch and to the TBAP sensor (Tempera-
ture and Barometric Air Pressure sensor).
3.
Remove the three cap screws, nuts and washers
from the air duct bracket on the center hood.
See Figure 3.
4.
On trucks with High Mount Precleaner, remove
the U-clamp from the support bracket. See Fig-
ure 4.
5.
Remove the Precleaner, with the air duct at-
tached, from the air filter housing.
6.
Open left-hand and right-hand hood doors. See
Figure 15.
7.
Loosen the hose clamps on the air filter hose
and remove the hose from the air filter and the
turbocharger.
8.
Place a cap on the air inlet of the turbocharger
to avoid dirt entering the turbocharger.
9.
Remove the four cap screws that retain the
brackets of the air filter unit to the hood.
10.
Lower the air filter unit until it is clear from
the hood.
11.
Remove the air filter to the right-hand side of
the truck.
Install
1.
Open left-hand and right-hand hood doors.
2.
Position the air filter housing with the air in-
take aligned with the hole in the mounting
plate.
3.
Install the air filter housing with the four
washers and cap screws and tighten to
65 N•m (48 lbf ft).
4.
Remove cap from the air inlet on the turbo-
charger.
5.
Connect air filter hose to the turbocharger and
to the air filter housing and tighten the hose
clamps to 8 N•m (6 lbf ft).
6.
Connect the connectors to the vacuum switch
and to the Temperature and Barometric Air
Pressure (TBAP) sensor according the tags.
7.
Close the hood doors.
8.
Install the Precleaner, with the air duct at-
tached, to the center hood.
9.
On trucks with High Mount Precleaner, install
the U-clamp to the support bracket.
1. AIR FILTER HOSE
2. VACUUM SWITCH
3. HOSE CLAMP
4. TBAP SENSOR
5. HOUSING BRACKET
6. AIR DUCT BRACKET
7. AIR DUCT
8. PRECLEANER
9. AIR FILTER HOUSING
Figure 3. Air Filter Assembly with Low Mount
Precleaner (Tier 4F/Stage IV)
Remove and Install 0100 SRM 1978
4