EarthQuake MC440 User manual

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
18
HANDLEBAR PARTS EXPLOSION
KEY PART # DESCRIPTION QT Y.
1 13184 UPPER LEFT HANDLEBAR ASSEMBLY GREY 1
2 13182 UPPER RIGHT HANDLEBAR ASSEMBLY GREY 1
3 13309 KNOB TEXTURED HANDLE GRIP 2
4 4640 THANDLE NUT 4
5 4641 WASHER 4
6 4642 HANDLE CLAMP BOLT 4
7 13370 MIDDLE HANDLEBAR ASSEMBLY GREY 1
8 4814 BOLT 1024 X 1 1/4 1
9 12633 HANDLEBAR RUBBER PAD 15MM X 28.5MM 1
10 4819 TRIGGER ASSEMBLY LONG 1
11 1021CE ON/OFF SWITCH WIRE ASSY 1
12 14645 THROTTLE CABLE 1
13 64131 NUT M6 X 1.0 1
14 10800 CURVED WASHER M6 1
15 400025 EYEBOLT M6 X 12 X 25 1
16 13804 THROTTLE TRIGGER KIT WITH CABLE 1
6
1
1, 3
2, 11
2, 10, 16
2, 9
2, 8
2
7
4
5
4
5
6
2, 3
7, 13
7, 14
7, 15
2, 12, 16

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 19
KEY PART # DESCRIPTION QT Y.
1 46146 TINE SHIELD 2
2 46138 TRANSMISSION ASSEMBLY 1
3 4602 TINE C ASSEMBLY 1
4 4604 TINE D ASSEMBLY 1
5 4652 HAIRPIN 5/83/4 2
6 4603 TINE B ASSEMBLY 1
7 4601 TINE A ASSEMBLY 1
8 4673 WHEEL HOLDER 1
9 4600 DRAG STAKE 1
10 4674 TUBE WHEEL AXLE 1
11 13189 WHEEL 180 X 38MM DIAMOND TREAD
GREY HUB
2
12 4687 BOLT M10 X 1.5 X 225 MM 1
13 4678 TUBE WHEEL GUIDE 1
14 4684 TUBE WHEEL LOCK 1
15 4685 SPRING WHEEL LOCK 1
KEY PART # DESCRIPTION QT Y.
16 46142 BOLT M6 X 1.0 X 20 2
17 4650 NUT M6 X 1.0 2
18 46145 PIN QUICKRELEASE M8 X 25 1
19 4625 BOLT M6 X 1.0 X 42 FLANGE 4
20 13230 WASHER 21MM X 16MM X 1MM 1
21 12811 LOWER HANDLEBAR 1
22 46141 BOLT M8 X 1.25 X 160MM 2
23 400023 NUT M8 NYLOCK 2
24 4641 CURVED WASHER M8 4
25 11614 ENGINE 40CC 4 CYCLE OHV 1
26 13048 NUT M10 X 1.5 1
27 176 BOLT M5 X 0.8 X 10 2
28 400020 NUT M5 X 0.8 TOPLCK 2
29 2431 FLAT WASHER M10 X 20 X 2 2
HOOD & TINES PARTS EXPLOSION
5
7
12
11
6
25
24
23
24
22
13
2
5
4
3
20
29 26
11
15
27
14
1
19
28
18
17
16
89
21
10

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
20
ENGINE PARTS EXPLOSION
13, 51
31, 50,
60
20, 51
21A, 51 45, 51
4, 51
42, 50,
60
1, 50
13, 48
35, 48
25, 49,
52
38, 49,
52
29, 52
30, 52
12, 53
19, 53 13
41, 55
3, 55
6
13, 56
15, 56
36, 56,
60
44, 48
28, 52
11, 52
27, 52
7, 55,
60
10, 57
43, 57,
60
8
13
32, 49,
52
17, 49,
52
12, 53
37, 59
14
12, 53
18
22, 54
2, 54
24, 54
47
5, 59
34
33 46
26, 58
39, 58 9
16, 58
23, 54
40
21B, 51

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 21
ENGINE PARTS LIST
KEY
NO. PART NO. DESCRIPTION Q T Y.
1 13192 CARBURETOR 1
2 300413 ASSY CENTRIFUGAL CLUTCH ROTOR
VIPER
1
3 13200* MUFFLER 1
4 13238 INTAKE BASE ASSEMBLY 1
5 13242* IGNITION COIL 1
6 13194 RECOIL ASSEMBLY 1
7 13202* HEAT SHIELD MUFFLER 1
8 13244 RECOIL CLUTCH 1
9 13243 SPARK PLUG NGK CMR6A 1
10 13196* OIL CAP 1
11 13195 GAS TANK 1
12 300471 BOLT WITH WASHER M5 X 0.8 X 12MM 3
13 10887 BOLT M5 X 0.8 X 16MM PPH W/
WASHER
14
14 13241 FLYWHEEL 1
15 13321* VALVE COVER 1
16 13317* HOSE VALVE COVER BREATHER 1
17 300494 GROMMET FUEL TANK TWO HOLE 1
18 13239 MOUNT RING AND SHROUD 1
19 13193* SHROUD ENGINE 1
20 13197 AIR FILTER COVER 1
21A 13198 AIR FILTER 1
21B 17078 AIR FILTER FIBER 1
22 300450 BOLT M8 X 1.25 X 25MM SHOULDER
10MM
2
23 300462 WASHER 15.8 X 8.4 X 1.6MM 2
24 300449 WASHER M8 SPRING 2
25 13306 FUEL LINE CUT TO 275MM 1
26 13318* CRANKCASE BREATHER 1
27 13352 GAS CAP COMPLETE 4 CYCLE EPA
SELF VENT
1
28 13295 RUBBER GAS TANK HOLDER TOP 1
29 13296 RUBBER TANK HOLDER BOTTOM LEFT 1
30 13297 RUBBER TANK HOLDER BOTTOM
RIGHT
1
31 13299* CARBURETOR GASKET 1
KEY
NO. PART NO. DESCRIPTION QT Y.
32 13307 FUEL LINE CUT TO 195MM 1
33 13320 WASHER M6 X 10MM X 1MM 1
34 13322 ENGINE BLOCK 1
35 13328 CARBURETOR INSULATOR 1
36 13324* GASKET VALVE COVER 1
37 13325 BOLT M4 X 0.7 X 20MM PPH WITH
WASHER
2
38 3004103 FUEL FILTER POROUS PLASTIC
ALUMINUM CORE
1
39 13395* HOSE CLAMP 13.5MM 2
40 W1200123 BOLT M5 X 0.8 X 16 3
41 13181 BOLT M5 X 0.8 X 50MM 2
42 13330* ORING 15 X 18.6 X 1.8MM 1
43 13392* ORING 15.6 X 19.16 X 1.78MM 1
44 13332 BOLT M5 X 0.8 X 55 2
45 400020 NUT M5 X 0.8 TOPLCK HHF GR 8.8 2
46 13449 BOLT M6 X 1.0 X 8MM X 12MM 1
47 300337 NUT M8 X 1.25MM 1
KEY
NO. PART NO. DESCRIPTION Q T Y.
48 13390 CARBURETOR BRACKET KIT 1
49 13308 FUEL LINES KIT 1
50 13329 CARBURETOR KIT 1
51 13363 AIR FILTER KIT 1
52 13388 GAS TANK KIT WITH FUEL LINE 1
53 13389 ENGINE SHROUD KIT 1
54 11235 CLUTCH KIT 76.76MM OD VIPER 1
55 13391 MUFFLER KIT 1
56 13298 VALVE COVER KIT 1
57 13393 OIL CAP KIT WITH ORING 1
58 13394 BREATHER HOSES KIT 1
59 13400 IGNITION COIL KIT 1
60 13066 GASKETS KIT 1
ENGINE PART KITS LIST
* Available as Kit only.

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
22
KEY PART # DESCRIPTION QT Y.
1 46136* MC LOWER TRANSMISSION CASTING LEFT 1
2 4646 SEAL SHAFT 19MM SHAFT 32MM BORE 2
3 4645 BUSHING M19 ID X 25.5OD DPROFILE FLANGE 2
4 4613 WORM 1
5 4616 SPACER BUSHING 22 X 11.05 X 2.413MM 1
6 4614 BUSHING M11 ID X 19OD DPROFILE FLANGED 2
7 4617 THRUST REDUCER BEARING M11 X 15OD
FLANGE
1
8 4618 THRUST WASHER 28 X 15 X 1.5MM 2
9 4619 THRUST BEARING 28 X 15 X 2MM 1
10 46137 DRIVE SHAFT 1
11 4623 BALL BEARING 9MM X 26MM DOUBLE SEALED 1
12 300414 CLUTCH DRUM ASSEMBLY 77.7MM 1
13 46135* MC LOWER TRANSMISSION CASTING RIGHT 1
KEY PART # DESCRIPTION QT Y.
14 46144 DUST CAP 2
15 4648 BOLT M6 X 1.0 X 22 FLANGE 2
16 4647 BOLT M6 X 1.0 X 18 FLANGE 4
17 4633 WHEEL AND DRAG MOUNT 1
18 4649 BOLT M6 X 1.0 X 25 2
19 4650 NUT M6 X 1.0 2
20 4620 NUT M8 X 1.25 1
21 W1200117 FLAT WASHER M6 X 13 X 1.75 2
22 13447 BOLT M6 X 1.0 X 8MM 2
23 4610 SHIM TINE SHAFT 35MM X 19MM X 2.2MM 4
24 4606 FIBER WASHER 38 X 19 X 3.2MM 2
25 4651 SHAFT TINE ASSEMBLY 1
26 46138 TRANSMISSION ASSEMBLY 1
TRANSMISSION PARTS EXPLOSION
20
12
11
10
6
8
9
7
4
25
1, 26
14 2
24
5
6
19 17
18
23
3
13, 26
16
15
16
21
22
* Available as Assembly or Kit Only
26

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5 23
15073 BORDER-EDGER KIT INSTALLATION (OPTIONAL ACCESSORY)
KEY # PART # DESCRIPTION QTY.
1 15009 BORDEREDGER TINE 1
2 46131 BORDEREDGER WHEEL 1
3 46134 HAIRPIN 1
PARTS BREAKDOWN
The Border-Edger Kit is a useful tool for making clean cuts in
the lawn along the borders of gardens, ower beds, walkways,
and driveways for a well manicured look. To install the Border-
Edger Kit, do the following:
INSTALLATION
1. Make sure the cultivator is not running by flipping the ON/
OFF switch to the OFF position.
2. Remove the hairpins from both sides of the tine shaft.
3. Remove the cultivating tines from the shaft, remembering
which direction they are facing.
4. Put the tines in a safe place and save the (2) hairpins, they will
be used on the Border-Edger Kit.
5. Slide the border-edger tine onto either side of the tine
shaft. Make sure that the hub collar of the border-edger tine
faces outward, away from the transmission of the cultivator.
SEE FIGURE 11
6. Take the (2) hairpins saved in Step 4 and insert them through
the inner and outer holes in the tine shaft on each side of the
border-edger tine to secure the tine blade in place on the
shaft. SEE FIGURE 11
7. Slide the border-edger wheel onto the opposite side of the
tine shaft as far as it will go.
8. Insert the remaining (1) hairpin, that came with the kit,
through the inner hole next to the wheel in the middle of the
tine shaft. SEE FIGURE 11
9. Before using the Border-Edger Kit, remove the drag stake from
the unit.
10.Set the cultivator wheels to the HIGHEST (top) position.
CAUTION
BE AWARE THAT THE CULTIVATOR COULD
UNEXPECTEDLY BOUNCE UPWARD, OR JUMP
FORWARD IF THE TINES STRIKE CONCRETE,
PAVEMENT, OR OTHER HARD SURFACES OR HARD
OBSTACLES BURIED UNDER GROUND.
hairpin
border-edger
wheel
tine shaft
border-edger
tine
FIGURE 11
hub collar
KIT ASSEMBLED

Operator's Manual
MC440 4-Cycle Cultivator
Check for parts online at www.getearthquake.com or call 800-345-6007 M-F 8-5
24
FIGURE 13
The Dethatcher Kit is very effective for lifting away the excessive matted layers of thatch that can prevent moisture, oxygen and
nutrients from penetrating the soil and can harbor disease and insects. Use in Spring, Summer, and Fall to bring life and color back
to your lawn.
1. Flip the ON/OFF switch to the OFF position. Remove the cultivating tines and the drag stake (SEE PAGE 12).
2. Unscrew mount bolts/nuts that connect the wheel bracket to the drag stake mount and set wheel bracket aside. SEE FIGURE 13
3. Slide dethatcher shield over the unit’s tine shield from the rear of the unit and secure using bolts (176) and nuts (400020).
SEE FIGURE 12
3. Secure the lower part of the dethatcher shield to the drag stake mount using the detent pin (46145).
4. Install wheel extension plate (4676) using additional bolts (46142) and nuts (4650). Make sure wheel extension is facing the right
direction. (The side, with the two holes flush to the edge, connects to the drag stake mount) SEE FIGURE 13
a. With the mount bolts/nuts attach the wheel extension to the drag stake mount.
b. Then with the bracket bolts/nuts (included with the Dethatcher Kit) attach the wheel bracket to the wheel extension.
5. Slide the Left and Right Dethatcher Assemblies onto the tine shaft making sure the Right Assembly is installed on the right side
and Left Assembly is installed on the left side as defined from the user’s position. SEE FIGURE 14
6. Secure dethatcher assemblies using the hairpins (4652). The hairpins go through the inner holes of the tine shaft.
NOTE: The drag stake should not be used when using the dethatcher kit.
DK43 DETHATCHER KIT INSTALLATION (OPTIONAL ACCESSORY)
slide shield
forward
right side dethatcher
assembly
left side dethatcher
assembly
hairpin
tine shaft
nut
(400020)
bolt
(176)
hairpin
FIGURE 12
FIGURE 14
nut
(400020)
bolt
(176)
secure with
detent pin wheel
extension
drag stake
mount
detent
pin
mount bolts/nuts
(46142/4650)
bracket bolts/nuts
(4647/4650)
wheel
bracket