Subaru RGN7800, RGX7800 User manual

PARTS MANUAL

Model

RGX7800 GENERATOR

PUB-GP6801 Rev. 07/09

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 difference 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 X 4 0 0

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

PRODUCT NO. (15 digits)

RGX7800 - 3 - 07-09

X X X X

MANUAL LAYOUT

1

2

1

6

4

3

7

9

2

3

5 4

8

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.

RGX7800 - 4 - 07-09

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 .................................................................. 22

GENERATOR GROUP ............................................................................. 30

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

RGX7800 - 5 - 07-09

SECTION 1 CRANKCASE GROUP

FIG. 100

20

60

610

28

270

280

220

620

250

210

631

260

230

630

27

690

26

40

50

70

680

710

10

75

30

700

90

80

300

RGX7800 - 6 - 07-09

SECTION 1 CRANKCASE GROUP

REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.

10 20B-10104-31 Crankcase Cp 1 100 20 20B-14202-03 Valve Guide 2 100 26 132-11AA1-10 Seal, intake valve 1 100 27 056-51000-50 Clip 1 100 28 263-35341-03 Retainer Plate 1 100 30 044-03500-90 Oil Seal 1 100 40 060-03502-40 Ball Bearing 1 100 50 277-15001-03 Pipe Knock 2 100 60 010-50802-90 Stud 2 100 70 010-50603-51 Stud 2 100 75 044-00800-10 Oil Seal 1 100 80 040-11400-30 Plug 1 100 90 021-11400-20 Gasket 1 100 210 20B-11004-11 Mainbearing Cover Cp 1 100 220 044-03500-90 Oil Seal 1 100 230 060-03502-40 Ball Bearing 1 100 250 20B-45003-01 Governor Gear Cp 1 100 260 277-41901-03 Governor Sleeve 1 100 270 279-63601-30 Oil Gauge Ay 2 100 280 279-63601-08 Gasket 2 100 300 011-00803-40 Flange Bolt 8 100 610 20B-13001-01 Cylinder Head Cp 1 100 620 20B-15001-03 Gasket, head 1 100 630 011-01000-40 Flange Bolt 4 100 631 001-04083-50 Flange Bolt 2 100 680 20B-15501-01 Rocker Cover Cp 1 100 690 20B-16001-03 Gasket, rocker cover 1 100 700 031-00600-10 Dowel Pin 2 100 710 011-00600-20 Flange Bolt 4 100 960 20B-99001-07 Gasket Set 1 100

RGX7800 - 7 - 07-09

SECTION 2 CRANKSHAFT GROUP

FIG. 200

310

320

10

380

350

70

360

370

RGX7800 - 8 - 07-09

SECTION 2 CRANKSHAFT GROUP

REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.

10 20B-20701-01 Crankshaft Cp 1 200 70 005-32054-01 Woodruff Key 1 200 310 20B-22501-00 Connecting Rod Ay 1 200 320 001-05084-00 Flange Bolt 2 200 350 263-23301-33 Piston Pin 1 200 360 20B-23401-H3 Piston 1 200 370 20B-23501-07 Piston Ring Set 1 200 380 056-52100-20 Clip 2 200

RGX7800 - 9 - 07-09

SECTION 3 INTAKE and EXHAUST GROUP

FIG. 300

405

415

340

350

241

225

231

27

25

80

90

290

170

60

70

150

95

200

202

240

230

220

160

163

37

35

RGX7800 - 10 - 07-09

38

34

10

166

SECTION 3 INTAKE and EXHAUST GROUP

REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.

10 20B-31602-00 Camshaft Cp 1 300 25 20B-35101-11 Pin Cp, camshaft 1 300 27 024-00700-20 O Ring 1 300 34 005-19041-00 Spring Pin 2 300 35 277-36401-03 Release Lever 1 300 37 20B-36501-03 Clip 1 300 38 20B-38701-03 Return Spring 1 300 60 246-33611-03 Valve Spring 2 300 70 246-33711-13 Spring Retainer 2 300 80 20B-33401-H3 Intake Valve 1 300 90 20B-33501-H3 Exhaust Valve 1 300 95 246-35501-03 Collet Valve 4 300 150 20B-35601-H1 Timing Chain Cp 1 300 160 277-36911-03 Tentioner 1 300 163 277-37101-03 Spring, tentioner 1 300 166 277-36902-03 Pin, tentioner 1 300 170 277-36913-13 Chain Guide 1 300 200 20B-35001-01 Pin Cp, rocker 1 300 202 003-13060-00 Clip 1 300 220 20B-36101-00 Rocker Arm Ay , intake 1 300 225 20B-36102-10 Rocker Arm Ay , exhaust 1 300 230 014-90500-20 Adjust Screw 1 300 231 014-90500-20 Adjust Screw 1 300 240 017-00500-30 Nut 1 300 241 017-00500-30 Nut 1 300 290 011-00600-10 Flange Bolt 1 300 340 20B-35201-03 Gasket, mufﬂ er 1 300 350 980-20082-80 Flange Nut 2 300 405 20B-34001-01 Exhaust Pipe Cp 1 300 415 010-50802-90 Stud 2 300

RGX7800 - 11 - 07-09

SECTION 3 INTAKE and EXHAUST GROUP

FIG. 330

580

570

265

-220

850

-200

510

520

-250

-260 270

RGX7800 - 12 - 07-09

SECTION 3 INTAKE and EXHAUST GROUP

REF. PART NO. DESCRIPTION QTY. REMARKS FROM-TO FIG.

265 20B-32850-H8 Cap 1 330 270 20B-32650-H8 Bolt 1 330 510 20B-32622-H0 Air Cleaner Ay 1 330

-200 20B-32630-H8 Body Cp 1 330

-220 20B-32720-H8 Packing 1 330

-250 20B-32640-H8 Cover Cp 1 330 520 20B-32611-H8 Element 1 330 570 002-38060-00 Flange Nut 2 330 580 001-04061-60 Flange Bolt 1 330 850 X85-11001-70 Rubber Pipe 1 330

RGX7800 - 13 - 07-09

SECTION 4 GOVERNOR GROUP

FIG. 400

80

40

10

30

60

90

50

70

485

370

450

310

435

436

360

50

20

RGX7800 - 14 - 07-09