Toro POWERVAC 51984 - Cleaning Exhaust, Muffler, and Spark Arrestor; Vacuum Bag and Fuel Cap Maintenance

19
Cleaning the Exhaust Port, Muffler,
and Spark Arrestor
See Figure 16.
WARNING:
Ensure mufer has had time to cool before
performing maintenance on the mufer and/or
spark arrestor and wear gloves. A hot mufer
may cause serious burns.
Note: Depending on the type of fuel used, the type and
amount of lubricant used, and/or your operating conditions,
the exhaust port, mufer, and/or spark arrestor screen may
become blocked with carbon deposits. If you notice a power
loss with your gas powered tool, you may need to remove
these deposits to restore performance. We highly recom-
mend that only qualied service technicians perform this
service.
The spark arrestor should be replaced after 25 hours of use.
Replacement parts available online at www.toro.com.
To replace the spark arrestor:
Note: Removing these screws requires the use of a T20
and T25 torx screwdriver.
1. Remove the ve screws that hold the cover.
2. Remove the cover.
3. Remove the two screws holding the mufer assembly in
place.
4. Remove the mufer assembly and mufer gasket. It
may be necessary to work the mufer assembly free
from the mufer gasket.
5. Separate the mufer cover from the mufer.
6. Remove the three screws that hold the plates on the
mufer.
7. Remove the spark arrestor.
8. Replace the old spark arrestor with the new one.
9. Assemble the mufer by reinstalling the plates and
tightening the three screws (torque to 18 in.lb
[2.03 Nm] minimum, 22 in.lb. [2.48 Nm] maximum).
10. Reassemble the mufer and mufer cover and attach to
the mufer gasket with the two screws.
11. Reinsert the mufer assembly and tighten two screws to
engine (torque to 60 in.lb [6.78 Nm] minimum, 80 in.lb.
[9.04 Nm] maximum).
12. Reinstall the cover on the tool and fasten with the ve
screws (torque to 30 in.lb [2.85 Nm] minimum,
45 in.lb. [4.28 Nm] maximum).
Note: Do not over-tighten screws.
WARNING:
To avoid a re hazard, never run the Powervac
™
without the spark arrestor in place.
Vacuum Bag
A dirty bag will reduce performance. To clean the bag, turn it
inside out and shake. Wash the bag in soapy water at least once
a year. Replacement parts available online at www.toro.com.
Fuel Cap
WARNING:
A leaking fuel cap is a re hazard and must be
replaced immediately.
The fuel cap contains a non-serviceable lter and a check
valve. A clogged fuel lter will cause poor engine per-
formance. If performance improves when the fuel cap is
loosened, the check valve may be faulty or lter clogged.
Replace the fuel cap if required.
Maintenance
Spark
Arrestor
Plate
Muffler
Cover
Muffler
Gasket
Screw(s)
Screw(s)
Cover
Screw(s)
Muffler
Figure 16