Generac Power Systems GTV-990 User Manual

1-2
SECTION 1: GENERAL INFORMATION
• During summer months: SAE 30. An acceptable substitute
is SAE 10W-30. After first oil change, synthetic oil is
acceptable.
• During winter months: SAE 5W-30, Synthetic 5W-20 or 5W-
30. DO NOT USE SAE 10W-40.
CHANGE OIL:
The crankcase oil capacity is about 2030 ml (2.1 qt.) with the
oil filter. Without the filter, the oil capacity is 1750 ml (1.8 qt.).
Use no special additives. Make sure that the unit is level when
filling with oil. DO NOT OVERFILL.
IMPORTANT: DO NOT OVERFILL. Check and maintain oil
level regularly. Change oil and filter after first eight (8)
hours of operation.
Thereafter, change oil and filter every 100 hours of opera-
tion. Change oil more often if engine is operated in dirty or
dusty conditions or if engine is operated under heavy loads or
in high ambient air temperatures.
Remove oil drain plug and drain oil while engine is still warm,
Figure 1-2. Change oil filter (Figure 1-3) and replace drain plug.
Figure 1-1. Oil Fill/Check
Remove dipstick and refill slowly with new oil of proper ser-
vice classification and viscosity grade. Refill to full mark on
dipstick. When checking oil level, dipstick must be all the way
in for accurate readings.
Start and run engine to check for oil leaks.
CHANGE OIL FILTER:
Replace oil filter every 100 hours. Before installing new filter,
lightly oil filter gasket with fresh clean engine oil. Screw filter
on by hand until gasket contacts filter adapter. Tighten 3/4 to
one full turn farther, Figure 1-3.
Start and run engine at idle for 30 seconds and stop engine.
Recheck oil level and add if required. Restart engine and check
for oil leaks.
Figure 1-2. Oil Drain
Figure 1-3. Oil Filter
CLEANING INT
AKE SCREEN:
Grass particles, chaff or dirt can clog the air cooling system,
especially after prolonged service in cutting dry grass or when
operating in extremely dusty or dirty conditions. Continued
operation with a clogged cooling system can cause severe
overheating and possible engine damage. Figure 1-4 shows the
areas to be cleaned. This should be a regular maintenance oper-
ation, or clean intake screen and oil cooler fins after each use.
FILTER
DRAIN
FILL / CHECK
Synthetic 5W-20, 5W-30
Temperature Range of Expected Use
C -30
-20
-20
0
-10
20
10
40
20
60
30
80
40
100
F
10W-30, SAE 30

Generac Power Systems GTV-990 Specifications

General

Brand	Generac Power Systems
Model	GTV-990
Category	Engine
Language	English