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Owner’s Manual for Stationary Diesel Generators 43
5.9 — Schedule C Maintenance
NOTE: Perform Schedule C maintenance after 1000 hours of service. Before proceeding below, first perform all
tasks listed under Schedule A Maintenance and Schedule B Maintenance.
The following procedures require special tools and skills. Contact a Generac Dealer or an authorized
service provider to perform these tasks.
• Inspect Fuel Tank
• Check/Adjust Fuel Injection Valve Pressure
• Check/Adjust Fuel Injection Pump Timing
• Adjust Intake/Exhaust Valve Clearance
• Tighten Critical Fasteners
NOTE: Reset the A-B-C/Year time maintenance schedule counter using the Dealer Sub Menu (password
required).
5.10 — Return To Service
After inspection, maintenance or service of the generator, return the unit to service following the steps below.
1. Pull up rubber flap covering fuse holder and install 7.5 amp fuse. See A of Figure 5-20.
2. Install T1 fuse in transfer switch.
3. Press AUTO on the control pad. A green LED illuminates to confirm that the system is in the AUTO mode. See B
of Figure 5-20.
4. Move the Main Circuit Breaker switch up to the ON (Closed) position. See C of Figure 5-20.
5. Close the viewing window.
6. Remove the DO NOT OPERATE tag or placard from both the control panel and transfer switch.
7. Reset the time and date.
Figure 5-20. Generator Control Panel
*
o
OFF
PUSH TO TRIP
7.5 Amp Fuse Holder
Main Circuit Breaker
B
C
A
LCD Screen
Control Pad