Generac Power Systems 4270-0 - Manual (Page 14)

MAINTENANCE
Section 3 - Maintenance
QUIETPACT™ 75D Recreational Vehicle Generator
3.1 CHECKING THE ENGINE OIL LEVEL
After the 25-hour break-in period, check the engine
crankcase oil level every eight hours of operation or
at least once daily before using the generator. For oil
capacities
and requirements, see “Engine Oil
Requirements,” Section 1.5.3 (Page 6). To check the
engine oil level, proceed as follows (see Figure 3.1):
1
.
2
.
3.
4.
Be sure the generator is as level as possible.
Remove the dipstick and wipe it dry with a clean,
lint-free cloth.
Install the dipstick and fully seat the T-handle;
then, remove it again. The oil level should be at
the dipstick “Full” mark.
If necessary, remove the oil fill plug and slowly
add oil until it reaches the dipstick “Full” mark.
DO NOT FILL ABOVE THE “FULL’ MARK.
5.
----------ik CAUTION Jk--------------------------
Never operate the engine with the oil level
i. below the "Add" mark on the dipstick. Doing
this could damage the engine.
Install the oil fill plug and the dipstick before
operating the engine.
Figure 3.1 - Oil Maintenance Features
OiL FILL OIL DIPSTICK
3.2 CHANGING THE ENGINE OIL
AND/OR OIL FILTER
Change the engine oil and oil filter after the first 25
hours of operation (after the 25-hour break-in peri­
od, see Section 2.8.1, Page 10). See the “Service
Schedule,” Section 3.13 (Page 16), for subsequent oil
and filter changes. Change the oil more frequently if
operating consistently under heavy load or at high
ambient temperatures.
To change the oil and/or oil filter, proceed as
follows (see Figure 3.1):
1. Run the engine until it is thoroughly warmed up
(at least five minutes) then shut OFF
the engine.
2. Immediately after the engine shuts OFF, remove
the front service door located beneath the unit
by retracting the two latches and pivoting the
door downward.
3. Remove the air filter (see Section 3.3).
4. Remove the oil drain plug and drain the oil into a
suitable container. Removing the oil fill plug will
allow the crankcase to drain faster.
5. After the oil has drained, replace the oil drain plug.
GO TO STEP 8 IF CHANGING OIL ONLY.
6. With the oil drained, remove the old oil filter by
turning it counterclockwise.
7. Apply a light coating of clean engine oil to the gas­
ket of the new filter.
8. Screw the new filter on by hand until its gasket
lightly contacts the oil filter adapter. Then, tight­
en the filter an additional 3/4 to one turn.
9. Remove the dipstick and wipe it dry with a
clean, lint-free cloth. This will be used later to
check the oil level.
10. Remove the oil fill plug and slowly add the proper
type and amount of recommended oil (see Section
1.5.3, Page 6). Periodically use the dipstick to check
the oil level and continue to fill the crankcase until
the oil reaches the dipstick “Full” mark. DO NOT
FILL ABOVE THE “FULL MARK.
11. Install the oil fill plug and the dipstick before
operating the engine.
12. Reinstall the air filter.
13. Reattach the front service door; make sure the
latches are fully engaged.
14. Start the engine and check for leaks.
NOTE:
Check the oil level and fill to the “FULL" mark
after checking for leaks. The filter will retain
some oil.
3.3 SERVICING THE ENGINE
AIR FILTER
To access the engine air filter (Figure 3.2, Page 13),
remove the front service door located beneath the
unit by retracting the two latches and pivoting the
door downward. Loosen the hose clamp at the base
of the air filter and remove the filter. Place the hose
clamp on the new filter and install it, making sure
it is positioned properly before reattaching the ser­
vice door. Make sure the service door latches are
fully engaged.
1 a Generac* Power Systems, Inc.