Subaru EH722 user guide

PARTS MANUAL

Models

EH722 ENGINES

PUB-EP Rev. 03/10

Robin America, Inc.

905 Telser Road, Lake Zurich, IL 60047 • Phone: 847-540-7300 • Fax:847-438-5012

e-mail: sales@robinamerica.com • www.subarupower.com

HOW TO USE THIS MANUAL

Robin engines are identiﬁ ed by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called speciﬁ cations. Each speciﬁ cation will be unique in some way . The dif ference may only be the paint color or it may have a different type of PTO or some other signiﬁ cant difference.

In order the identify the correct service part number, it is important to conﬁ rm the speciﬁ ca- tion and code numbers for your engine. The speciﬁ cation and code number together are know as the PRODUCT NUMBER.

All Robin 4 cycle engines have a Product Number label similar to the label illustrated below.

The Product Number Label has a 15 digit alphanumeric string that consists of the SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits). Please note the illustration below:

E H 7 2 2

SPEC NO. (11 digits) CODE NO. (4 digits)

PRODUCT NO. (15 digits)

X X X X

MANUAL LAYOUT

5 4

1. SECTION NAME Parts are broadly classiﬁ ed according to their functions. Refer to the Group Index (table of contents) for respective section name.

2. FIG. No. The FIG. number indexes the reference and part numbers to the illustration. Figure numbers that vary only in the tens place (i.e..: 700 and 710) are in a group of the same section (i.e..:Electrical Device Group).

3. REF. No . The Reference number identiﬁ es the part illustration with the corresponding part number in the part list.

4. SUBASSEMBLY SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly part reference number is indicated by the number led by "-" such as "-1", "-2".

5. PART NUMBER It is the number assigned for sales unit. Use the PART No. when making an order.

6. DESCRIPTION It is designation of the part.

7. QTY. Quantity of each part used for each product.

8. REMARKS This gives a distinctive feature and/or a supplementary comment for the type, the speciﬁ cation,

and the part concerned. It also shows part number(s) interchangeable for the part.

9. FROM-TO This section shows the CODE No. to indicate the history of progress in which improved parts have been introduced in the product. The FROM-TO CODE No. helps to identify PART No. being employed in the product concerned. See the examples below:

- The part is used in the product irrespective of CODE No. 2101- The part is used in the products with CODE No. of 2101 and after this number.

- 2100 The part is used in the products with CODE No. of 2100 and before this number.

GROUP INDEX

Group Name Page

CRANKCASE GROUP ...............................................................................6

CRANKSHAFT GROUP .............................................................................8

INTAKE and EXHAUST GROUP ..............................................................10

GOVERNOR GROUP ..............................................................................14

COOLING and STARTING GROUP ......................................................... 16

FUEL, LUBRICANT GROUP .................................................................... 18

CARBURETOR GROUP .......................................................................... 20

ELECTRIC DEVICE GROUP .................................................................. 24

ACCESSORY GROUP ............................................................................. 26

INDEX OF DESCRIPTION SYMBOLS

SYMBOL DESCRIPTION

AY ...........................ASSEMBLY

CP ...........................COMPLETE

EX ...........................EXPORT (from Japan)

FIG. .........................FIGURE

FR. ..........................FRONT

" ..............................INCH

INCL. ......................INCLUDE

~L ............................LITER

L= ...........................LENGTH (in. mm)

L.H. (LH) .................LEFT-HAND SIDE

MECH .....................MECHANICAL

NO (NON) ...............NONE

OPT.........................OPTIONAL

O.S. ........................OVER SIZE

SYMBOL DESCRIPTION

P= ...........................PITCH (in mm)

P.T.O. (PTO) ...........POWER TAKE OFF

REF. ........................REFERENCE

R.H. (RH) ................RIGHT HAND SIDE

RR. .........................REAR

STD. .......................STANDARD

SW ..........................SWITCH

T= ...........................THICKNESS (in mm)

UN ..........................UNIT

U.S..........................UNDER SIZE

~V ...........................VOLT AGE

~W ..........................WA TT

W/ ...........................WITH

W/O ........................WITHOUT

SECTION 1 CRANKCASE GROUP

FIG. 100

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SECTION 1 CRANKCASE GROUP

Ref. Part Number Description Qty Remarks To-From Fig.

10 280-10101-C1 Crankcase Cp 1 100 20 263-14211-03 Valve Guide 2 100 21 056-51000-50 Clip 1 100 22 263-14211-03 Valve Guide 2 100 23 056-51000-50 Clip 1 100 26 132-11AA1-10 Seal, exhaust valve 1 100 27 132-11AA1-10 Seal, exhaust valve 1 100 28 263-35341-03 Retainer Plate 1 100 29 263-35341-03 Retainer Plate 1 100 40 263-15802-03 Main Bearing 1 100 50 X31-00800-80 Dowel Pin 2 100 55 263-55601-03 Pipe 2 100 60 010-50802-90 Stud 4 100 61 010-50802-90 Stud 4 100 75 044-00800-10 Oil Seal 1 100 80 X40-11400-30 Plug 2 100 85 263-15911-A1 Blind Plug Cp 1 100 90 021-11400-20 Gasket 2 100 130 159-65401-03 Pipe, pulse 1 100 200 263-76102-H1 Oil Pressure Switch 1 100 210 263-11004-E1 Main Bearing Cover Cp 1 100 220 044-04200-30 Oil Seal 1 100 230 X60-04500-10 Ball Bearing 1 100 250 263-45001-C1 Governor Gear Cp 1 100 255 263-46215-A3 Thrust Bearing 1 100 257 263-46214-A3 Washer 2 100 260 277-41901-03 Governor Sleeve 1 100 290 263-16002-A3 Gasket, main bearing cover 1 100 300 X11-00802-20 Flange Bolt 10 100 610 20K-13001-A1 Cylinder Head 1 Cp 1 100 615 20K-13101-A1 Cylinder Head 2 Cp 1 100 620 280-15001-13 Gasket 1, cylinder head 1 100 621 280-15101-13 Gasket 2, cylinder head 1 100 630 X11-01000-70 Flange Bolt 8 100 680 280-15501-A3 Rocker Cover 1 100 681 263-15501-A3 Rocker Cover 1 100 690 263-16101-A3 Gasket, rocker cover 2 100 700 X31-00600-20 Dowel Pin 4 100 710 X11-00601-01 Flange Bolt 8 100 800 280-19001-A3 Hook 2 100 810 263-14301-03 Breather Cover 1 100 820 280-14401-A1 Breather Plate Cp 1 100 830 263-16006-03 Gasket, breather plate 2 100 860 X11-00600-30 Flange Bolt 2 100 960 280-99001-17 Gasket Set 1 100

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SECTION 2 CRANKSHAFT GROUP

FIG. 200

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SECTION 2 CRANKSHAFT GROUP

Ref. Part Number Description Qty Remarks To-From Fig.

10 280-21101-C1 Crankshaft Cp 1 200 40 263-25012-A3 Spacer 1 200 41 263-25013-A3 Spacer 1 200 42 263-25014-A3 Spacer 1 200 50 X18-01800-10 Flange Nut 1 200 65 003-10180-00 Washer 1 200 70 005-32054-01 Woodruff Key 1 200 310 263-22601-20 Connecting Rod Ay 2 200 311 263-22602-10 Connecting Rod Ay 2 Undersize 0.25mm 200 320 001-05084-00 Flange Bolt 4 200 350 263-23301-33 Piston Pin 2 200 360 280-23411-H3 Piston 2 Std 200 361 280-23412-H3 Piston 2 Oversize 0.25mm 200 362 280-23413-H3 Piston 2 Oversize 0.50mm 200 370 280-23501-07 Piston Ring Set 2 Std 200 371 280-23502-07 Piston Ring Set 2 Oversize 0.25mm 200 372 280-23503-17 Piston Ring Set 2 Oversize 0.50mm 200 380 056-52100-20 Clip 4 200

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