Maintenance - Billy Goat DL2500SMM Owner's Manual

MAINTENANCE

P M
ERIODIC AINTENANCE
Periodic maintenance should be performed at the following intervals:
Maintenance Operation
Inspect for loose, worn or damaged parts.
Check engine oil and air filter
Clean hose
Engine (See Engine Manual)
Inspect battery for damage or leak
Keep engine free of debris
Check battery terminal for corrosion
Check for excessive vibration
IMPELLER REMOVAL
1. Wait for engine to cool and disconnect spark plug wires from the both sides of the engine.
2. Disconnect the negative battery cable (black) (item 12) from the battery.
3. Remove the hose from the unit.
4. Unattach the hose from boom assembly.
5. Remove the intake housing assembly (item 33) using 9/16" socket and socket wrench to remove (12)
locknuts (item 47). Be careful to place intake assembly to the side without putting excess strain on
safety switch wire harness
6. Remove impeller bolt and lock washer using 5/8" socket and impact wrench (see fig. 6).
7. Once bolt is removed impeller should slide out freely. If impeller will not slide free on crankshaft,
obtain a 3/4"-16 x 3" bolt and thread it into the nut that is welded onto the center of the impeller and
tighten slowly to push the impeller off the crankshaft.
Note: The 3/4"-16 x 3" bolt can be ordered from your local Billy Goat Dealer (part no. 440192).
8. When impeller is free of the engine shaft, align impeller with the opening and pull it straight out of the
housing.
9. Using a new impeller bolt, washer, and lock washer, install new impeller in reverse order.
Note: Be sure spacer is in place behind impeller before tightening.
10. Tighten impeller bolt. Torque impeller bolt to [55-60 Ft. Lbs. (75-81 N.m)].
11. Repeat steps 2 through 5 in reverse order.
12. Reinstall spark plug wires.
INTERLOCK SYSTEM
With hose coupler installed (as shown in Fig. 8) the switch is open & engine is not grounded out, allowing engine to run.
SUBARU
WIRING
DIAGRAM
Part No 791108
MM Owner's Manual
Every use Every 5 hours (daily)
12
Every 10 Hours Every 25 Hours
Hose must be installed
Fig. 8
and switch lever must
engage switch for
engine to start.
Form No F111008B
Fig. 6