Tecumseh H30-40 - Manual (Page 17)

181-789-14 Four-Cycle Engine • Horizontal Crankshaft • Air-Cooled Page 15
I. Servicing Foam Filters
Clean foam pre-filter every 3 months or every 25 operating
hours. Clean daily if used in extremely dusty conditions.
After removing the pre-filter, follow these cleaning
instructions below:
1. Wash in warm water and detergent solution then press
(DO NOT twist) until all dirt is removed.
2. Rinse thoroughly until water is clear.
3. Wrap in a clean cloth and press (DO NOT twist) until
completely dry.
NOTE
DO NOT oil foam pre-filter.
4. Replace foam pre-filter onto paper filter.
II. Servicing Paper Filters
Paper filters cannot be cleaned and must be replaced once
a year or every 100 operating hours; more often if used in
extremely dusty conditions. Replacement filters are
available at a Authorized Tecumseh Servicing Dealer.
Follow the instructions next to the drawing of your air
cleaner to remove and replace it.
NOTE
DO NOT put oil on or clean a paper filter.
Type “A” Air Cleaner
1. Loosen cover screws. See Figure 35.
2. Turn cover counterclockwise and remove from base.
3. Remove optional foam filter (if present) from paper
filter.
4. Remove paper/metal filter from base.
5. Clean inside of base and cover thoroughly.
6. Install new paper/metal element into base.
7. Install optional foam filter onto paper filter.
8. Turn cover clockwise and attach to base.
9. Install cover screws and tighten securely.
Type “B” Air Cleaner
1. Turn cover to left (counterclockwise) and remove it and
paper filter from flange. See Figure 36.
2. Discard filter.
3. Clean cover and flange thoroughly.
4. Install new paper filter into cover.
5. Position cover and filter against flange with tab on
cover inserted into lower left corner of slot in flange.
6. Push cover firmly against flange and turn to right
(clockwise) as far as it will go.
7. Be sure retainers are locked around flange.
E. Adjustments
Do not make any engine adjustments. Factory settings are
satisfactory for most conditions. If adjustments are needed,
contact your Authorized Tecumseh Servicing Dealer.
F. Carburetor
If you think your carburetor needs adjusting, see your
nearest Authorized Tecumseh Servicing Dealer. Engine
performance should not be affected at altitudes up to 7,000
feet (2,134 meters). For operation at higher elevations,
contact your Authorized Tecumseh Servicing Dealer.
G. Engine Speed
To avoid serious injury or death, DO
NOT modify engine in any way.
Tampering with the governor setting can lead to a runaway
engine and cause it to operate at unsafe speeds. NEVER
tamper with factory setting of engine governor.
NOTE
Running the engine faster than the speed set at the factory
can be dangerous and will VOID THE ENGINE
WARRANTY.
Figure 35. Air Cleaner Type “A” Assembly
Figure 36. Air Cleaner Type “B” Assembly
1. Base
2. Cover Screws
3. Paper/Metal Filter
4. Optional Foam Filter
5. Cover
1
2 3 4 5
1. Retainer
2. Slot
3. Flange
4. Paper Filler
5. Tab
6. Cover
1
2
3 4
5
6
1
! WARNING