Operating Guide

Maintenance
Owner’s Manual for 60 Hz Air-Cooled Generators 27
Checking Engine Oil Level
IMPORTANT NOTE: Verify oil level daily when
power outages necessitate running generator for
extended periods. Generator will shut down if oil
level is low.
Proceed as follows to check engine oil level:
1. Set main utility disconnect to OFF (OPEN).
2. Set MLCB (generator disconnect) on generator to
OFF (OPEN).
3. Allow generator to run for a cool-down period of
approximately one minute, if generator was run
-
ning during an outage.
4. Press OFF button to turn generator off. Wait five
minutes.
5. See Figure 2-1, Figure 2-2, or Figure 2-3.
Remove oil dipstick and wipe it dry with a clean
cloth.
6. Completely insert oil dipstick into oil dipstick tube
and remove.
7. Observe oil level. The level should be at FULL
mark on oil dipstick.
8. If necessary, remove oil fill cap and add recom-
mended oil to engine (with oil dipstick removed)
until level reaches FULL mark. Insert oil dipstick
and install fill cap. See
Engine Oil Requirements.
To restart generator:
1. Press AUTO button on control panel.
2. Allow generator to start and warm up for a few min-
utes.
3. Set MLCB (generator disconnect) on the generator
to ON (CLOSED).
The system is now operating in AUTO. The main utility
disconnect can be turned ON (CLOSED).
Engine Oil Requirements
Engine oil should be serviced in accordance with the rec-
ommendations of this manual to maintain product war-
ranty. Generac Maintenance Kits are available consisting
of engine oil, oil filter, air filter, spark plug(s), a shop
towel, and a funnel. These kits can be obtained from an
IASD.
All Generac oil kits meet minimum American Petroleum
Institute (API) Service Class SJ, SL, or better. Do not use
special additives.
Synthetic SAE 5W-30 for all temperature ranges. See
Engine.
Changing the Oil and Oil Filter
Proceed as follows to change oil and oil filter:
1. Lift lid and press MANUAL button on control panel
to start engine, and run until it is thoroughly warm-
ed up. Press OFF button on control panel to shut
down engine.
2. See Figure 4-1, Figure 4-2, or Figure 4-3.
Remove front panel when unit has cooled. Pull oil
drain hose (A) free of retaining clip. Remove cap
from oil drain hose and drain oil into a suitable con
-
tainer.
Figure 4-1. Oil Filter and Drain Location (10 kW)
(000139)
WARNING
Risk of burns. Allow engine to cool before
draining oil or coolant. Failure to do so could
result in death or serious injury.
(000210)
WARNING
Skin irritation. Avoid prolonged or repeated contact with
used motor oil. Used motor oil has been shown to cause
skin cancer in laboratory animals. Thoroughly wash
exposed areas with soap and water.
(000135)
CAUTION
Engine damage. Verify proper type and quantity of
engine oil prior to starting engine. Failure to do so
could result in engine damage.
(000135)
CAUTION
Engine damage. Verify proper type and quantity of
engine oil prior to starting engine. Failure to do so
could result in engine damage.
001831
B
A