Maintenance; Oil Change; Removal / Installation - PREVOST H3-41 Maintenance Manual

14.1

MAINTENANCE

MAINTENANCE
Change the right angle gearbox oil only at
operating temperature at the intervals specified
by the Lubrication And Servicing Schedule in
Section 24: LUBRICATION & SERVICING.
Replace sealing rings at every oil change.
14.2

OIL CHANGE

For the list of approved oils for Linnig right angle
gearbox, refer to Linnig bulletin 142.377 found
on your Technical Publications USB flash drive.
1. Stop engine and make sure that all engine
safety precautions have been observed.
2. Set the ignition to the OFF position and
remove the key from the contact switch to
prevent accidental starting of the engine or
set the rear start panel selector switch to the
OFF position.
3. Clean gear case carefully.
4. Remove the drain plug located underneath
the right angle gearbox case and allow the oil
to drain into a suitable container.
5. Replace the seal and screw the drain plug
back in.
6. Unscrew and remove the oil level plug and
the top filler plug/vent.
7. Add gear lubricant until oil level reaches the
bottom of the side oil level check point
(approximately 0.85 pint).
FIGURE 42: RIGHT ANGLE GEARBOX
05118
PA1615 Maintenance Manual All Series | Section 05a revised September 2016
SECTION 05a: H3 SERIES COOLING SYSTEM
WARNING
Note that warranty may be voided if oil change
interval is not respected or an inappropriate
type of oil is used. Refer to refer to Linnig
bulletin 142.377 for the list of approved oils.
8. Replace the seals and screw plugs back in.
Torque as prescribed.
9. Start the engine and allow running a few
minutes. Stop the engine and check for leaks.
14.3

REMOVAL / INSTALLATION

To remove the right angle gearbox, proceed as
follows:
1. Set the ignition to the OFF position and
remove the key from the contact switch to
prevent accidental starting of the engine.
2. Disconnect the
connector.
3. Dismount the fan and lean it against the
radiator (refer to previous paragraph).
4. Disconnect the universal joint shaft.
5. Dismount the angle shown on the image
below.
FIGURE 43: DISMOUNT THE ANGLE SHOWN
6. Loosen the gearbox upper support bracket
top bolts.
7. Unscrew and remove 4 gearbox mounting
bolts.
8. Slide the gearbox out of the support
assembly.
Installation procedure is the same as removal
but in reverse order. Tighten the 4 mounting
bolts as specified.
fan clutch electrical
27