RDG603A17 – Issue 1 – Shire 30_40_50 WB/RB Manual
Page 29 of 51
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To fit a new air filter, loosen the jubilee clip which secures the old air filter to the
engine. Remove the old air filter and fit the new air filter in its place. Re-tighten the
jubilee clip.
•
The air filter is constructed from pleated paper. Inspect it closely for dust or dirt. The
air filter cannot be cleaned and must be replaced when dirty. The engine requires
clean unrestricted air to run efficiently. Failure to maintain the air filter could result in
smoke, increased fuel consumption and ultimately engine damage.
4. Gearbox Oil Change
Note: Some engines will have a gearbox sump pump fitted. To change the oil in this
circumstance, follow the same procedures as were outlined for changing the engine oil. For
engines without a gearbox sump pump follow the procedure below.
•
Change the gearbox oil while it is still hot (Please refer to the gearbox manual for
more information).
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Place a tray beneath the gearbox that will hold at least 2 litres.
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Remove the drain plug and allow 5 minutes for the oil to drain thoroughly.
•
Replace the drain plug. Ensure that the sealing washer (if used) is still in place and
in good condition before tightening. Fit a new washer if required.
•
Refill the gearbox with oil to the upper mark on the dipstick. Screw the dipstick in
fully, to establish level. Refer to the PRM owner manual for more details.
Section 6
in this manual contains details of oil specifications.
•
Do not overfill the gearbox as this can damage the internal components.
Figure 7: PRM 80 and 120 Gearbox
Level dipstick / Filler Plug
Magnetic
Drain
Plug
(viewed
from
