Page 1
PARTS
MAN U AL
Model
PKX310 / PKX320
PUMP
PUB-EP
Rev. 0812
Page 2
Robin America, Inc.
905 Telser Road • Lake Zurich, IL 60047 • Phone: 847-540-7300 • Fax: 847-438-5012
e-mail: [email protected] • www.subarupower.com
PKX310 / PKX320 - 2 - 03-12
© Copyright 2012 Robin America, Inc.
Page 3
HOW TO USE THIS MANUAL
Ref. Part Number Description Qty Remarks To-From Fig.
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 1 7 0 D
SPEC NO. (11 digits) CODE NO. (4 digits)
PRODUCT NO. (15 digits)
PKX310 / PKX320 - 3 - 03-12
X X X X
Page 4
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.
PKX310 / PKX320 - 4 - 03-12
Page 5
Ref. Part Number Description Qty Remarks To-From Fig.
GROUP INDEX
Group Name Page
CRANKCASE GROUP ............................................................................... 6
CRANKSHAFT GROUP ............................................................................. 8
INTAKE and EXHAUST GROUP .............................................................. 10
GOVERNOR GROUP ..............................................................................18
COOLING and STARTING GROUP ......................................................... 22
FUEL, LUBRICANT GROUP .................................................................... 26
CARBURETOR GROUP ..........................................................................28
ELECTRIC DEVICE GROUP ..................................................................32
ACCESSORY GROUP ............................................................................. 38
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
PKX310 / PKX320 - 5 - 03-12
Page 6
FIG. 1 CRANKCASE GROUP
FIG. 100
610
285
710
700
PKX310 / PKX320 - 6 - 03-12
Page 7
FIG. 1 CRANKCASE GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 277-10102-51 Crankcase Cp 1 100
20 237-14202-03 Valve Guide 2 100
26 277-16010-01 Stem Seal 1 100
30 044-02502-00 Oil Seal 1 100
40 060-02800-21 Ball Bearing 1 100
50 277-15011-03 Pipe Knock 2 100
60 010-50802-50 Stud 2 100
70 010-50603-51 Stud 2 100
75 044-00600-20 Oil Seal 1 100
80 040-11400-30 Plug 2 100
90 021-11400-20 Gasket 2 100
210 277-11001-31 Main Bearing Cover Cp 1 100
220 044-02502-10 Oil Seal 1 100
230 X60-02501-40 Ball Bearing 1 100
250 277-45004-J1 Governor Gear Cp 1 100
260 277-41901-03 Governor Sleeve 1 100
280 277-63601-08 Gasket 2 100
285 277-63601-30 Oil Gauge Ay 2 100
300 001-04083-50 Flange Bolt 6 100
610 277-13001-11 Cylinder Head Cp 1 100
620 277-15001-43 Gasket, head 1 100
630 011-00802-40 Flange Bolt 4 100
631 011-00803-10 Flange Bolt 1 100
680 277-15503-01 Rocker Cover Cp 1 100
690 277-16001-13 Gasket, rocker cover 1 100
700 277-15011-03 Pipe Knock 2 100
710 011-00600-20 Flange Bolt 4 100
960 277-99001-47 Gasket Set 1 100
PKX310 / PKX320 - 7 - 03-12
Page 8
FIG. 2 CRANKSHAFT GROUP
FIG. 200
PKX310 / PKX320 - 8 - 03-12
Page 9
FIG. 2 CRANKSHAFT GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 20A-20302-01 Crankshaft Cp 1 200
50 018-01400-20 Flange Nut 1 200
70 032-30300-10 Woodruff Key 1 200
310 277-22501-10 Connecting Rod Ay 1 200
311 277-22502-00 Connecting Rod Ay 1 Undersize 200
320 277-23001-03 Connecting Rod Bolt 2 200
350 277-23301-13 Piston Pin 1 200
360 277-23401-J3 Piston 1 Std 200
361 277-23403-J3 Piston 1 Oversize .25mm 200
362 277-23404-J3 Piston 1 Oversize .50mm 200
370 277-23531-07 Piston Ring Set 1 Std 200
371 277-23532-07 Piston Ring Set 1 Oversize .25mm 200
372 277-23533-07 Piston Ring Set 1 Oversize .50mm 200
380 056-51600-10 Clip 2 200
PKX310 / PKX320 - 9 - 03-12
Page 10
FIG. 3 INTAKE and EXHAUST GROUP
FIG. 300
23
200
202
PKX310 / PKX320 - 10 - 03-12
Page 11
FIG. 3 INTAKE and EXHAUST GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 277-31601-31 Camshaft Cp 1 300
23 277-35101-01 Pin Cp, camshaft 1 300
27 024-00600-10 O ring 1 300
34 277-38601-03 Pin, spring 1 300
35 277-36401-03 Release Lever 1 300
37 277-36501-03 Clip 1 300
38 277-38702-03 Return Spring 1 300
60 279-33601-03 Valve Spring 2 300
70 269-33701-03 Spring Retainer 2 300
80 277-33401-H3 Intake Valve 1 300
90 277-33501-H3 Exhaust Valve 1 300
95 132-10KA0-31 Ccollet Valve 4 300
150 277-35601-11 Timing Chain 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
200 277-35002-01 Pin Cp, rocker 1 300
202 003-13050-00 Clip 1 300
219 277-36001-07 Rocker Arm Ay, set 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
290 011-00600-20 Flange Bolt 1 300
310 277-30111-J1 Muffl er Cp 1 300
315 277-37601-01 Spark Arrester Cp 1 300
317 015-00400-60 Tapping Screw 1 300
320 277-34204-21 Muffl er Cover Cp 1 300
340 277-35201-13 Gasket, Muffl er 1 300
350 002-38080-00 Flange Nut 2 300
360 015-20600-90 Tapping Bolt 2 300
361 011-00600-10 Flange Bolt 1 300
365 011-00803-20 Flange Bolt 1 300
367 20A-02101-00 Washer 1 300
385 277-37203-H1 Screen Cp 1 300
387 015-00400-60 Tapping Screw 2 300
540 277-32902-J1 Insulator Cp 1 300
550 277-35902-J3 Gasket 2, insulator 1 300
560 277-35903-J3 Gasket 1, insulator 1 300
570 002-38060-00 Flange Nut 2 300
580 011-00600-50 Flange Bolt 1 300
850 277-32760-08 Breather Pipe 1 300
PKX310 / PKX320 - 11 - 03-12
Page 12
FIG. 3 INTAKE and EXHAUST GROUP
FIG. 315
PKX310 / PKX320 - 12 - 03-12
Page 13
FIG. 3 INTAKE and EXHAUST GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
510 277-32615-20 Air Cleaner Ay 1 315
-200 277-32630-18 Base Cp 1 315
-210 277-32610-08 Packing 1 315
-220 277-32604-08 Packing 1 315
-250 277-32640-08 Cover Cp 1 315
-260 277-32609-08 Label 1 315
-270 277-32741-18 Wing Nut 1 315
-272 277-32607-08 Wing Nut 1 315
520 277-32611-07 Element Set 1 315
PKX310 / PKX320 - 13 - 03-12
Page 14
FIG. 4 GOVERNOR GROUP
FIG. 400
13
PKX310 / PKX320 - 14 - 03-12
Page 15
FIG. 4 GOVERNOR GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
13 277-42301-40 Governor Lever Ay 1 400
20 277-42201-33 Governor Shaft 1 400
30 277-42701-11 Governor Rod Cp 1 400
40 277-42801-23 Rod Spring 1 400
50 003-13050-00 Clip 1 400
60 001-14062-50 Bolt and Washer Ay 1 400
70 018-60600-20 Nut 1 400
80 277-42510-13 Governor Spring 1 400
310 277-43303-03 Speed Control Lever 1 400
340 277-43502-03 Stop Plate 1 400
350 277-44501-03 Washer 1 400
355 021-70600-70 Friction Washer 1 400
360 004-31062-50 Screw, panhead 1 400
365 237-45004-23 Spring, adjust 1 400
435 277-46002-01 Speed Control Bracket Cp 1 400
450 002-35060-00 Self Lock Nut 1 400
485 011-00600-20 Flange Bolt 2 400
PKX310 / PKX320 - 15 - 03-12
Page 16
FIG. 5 COOLING and STARTING GROUP
FIG. 500
110
PKX310 / PKX320 - 16 - 03-12
Page 17
FIG. 5 COOLING and STARTING GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 277-51201-11 Blower Housing Cp 1 500
20 073-20058-20 Label, trademark 1 500
25 073-20058-60 Label, warning 1 500
40 011-00600-30 Flange Bolt 4 500
60 277-52711-21 Baffl e 1 Cp, case 1 500
61 277-52702-03 Baffl e 2, head 1 500
80 001-04061-60 Flange Bolt 1 500
81 011-00600-20 Flange Bolt 1 500
110 20A-54101-13 Cooling Blower 1 500
220 011-00600-30 Flange Bolt 4 500
PKX310 / PKX320 - 17 - 03-12
Page 18
FIG. 5 COOLING and STARTING GROUP
FIG. 522
PKX310 / PKX320 - 18 - 03-12
Page 19
FIG. 5 COOLING and STARTING GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
210 20A-50201-30 Recoil Starter Ay 1 522
PKX310 / PKX320 - 19 - 03-12
Page 20
FIG. 6 FUEL LUBRICANT GROUP
FIG. 600
30
23
80
PKX310 / PKX320 - 20 - 03-12
Page 21
FIG. 6 FUEL LUBRICANT GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 277-60101-21 Fuel Tank Cp 1 600
20 073-20057-60 Label, warning 1 600
23 277-95114-03 Label, EX16 1 600
30 043-04400-50 Fuel Tank Cap Cp 1 600
40 X64-13600-10 Fuel Filter 1 600
48 X50-51200-20 Union 1 600
60 002-38060-00 Flange Nut 2 600
63 011-00601-30 Flange Bolt 1 600
70 277-62601-11 Fuel Pipe Cp 1 600
80 X85-10613-51 Rubber Pipe 1 600
90 X56-11100-60 Hose Clamp 2 600
224 277-43801-01 Choke Lever Cp 1 600
PKX310 / PKX320 - 21 - 03-12
Page 22
FIG. 6 FUEL LUBRICANT GROUP
FIG. 640
210
-102
-62
PKX310 / PKX320 - 22 - 03-12
Page 23
FIG. 6 FUEL LUBRICANT GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
210 276-62302-30 Carburetor Ay 1 640
-1 106-62538-08 Throttle Valve 1 640
-2 209-62351-08 Screw 1 640
-3 277-62525-08 Choke Valve 1 640
-5 246-62420-08 Pilot Jet 1 640
-8 277-62520-08 Choke Lever 1 640
-11 276-62531-18 Throttle Shaft A 1 640
-12 227-62451-08 Bolt 1 640
-14 277-62500-08 Needled 1 640
-15 277-62515-08 Pin 1 640
-16 277-62506-08 Float Body Ay 1 640
-17 214-62450-08 Packing 1 640
-18 214-62540-08 Chamber Packing 1 640
-19 226-62506-08 Float 1 640
-20 276-62440-08 Main Nozzle 1 640
-22 252-62405-08 Main Jet 1 640
-24 226-62701-18 Clip 1 640
-28 277-62360-08 Bolt 1 640
-40 106-62556-08 Screw 1 640
-41 283-62357-08 Spring 1 640
-44 207-62410-08 Air Jet 1 640
-45 106-62410-08 Air Jet, pilot 1 640
-62 236-62680-08 Seal 1 640
-79 236-62541-08 Packing 1 640
-102 246-62390-08 Seal 1 640
-144 277-62553-08 Nut 1 640
-300 279-62103-20 Fuel Strainer Ay 1 640
-302 277-62110-18 Packing 1 640
-303 277-62100-18 Cup 1 640
-325 277-62552-08 O ring 1 640
-327 165-62377-08 Screw 2 640
PKX310 / PKX320 - 23 - 03-12
Page 24
FIG. 7 ELECTRIC GROUP
FIG. 700
PKX310 / PKX320 - 24 - 03-12
Page 25
FIG. 7 ELECTRIC GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
10 20A-79231-01 Flywheel Cp 1 700
11 20A-79431-01 Ignition Coil Cp 1 700
30 001-14062-50 Bolt and Washer Ay 2 700
50 277-73101-H1 Wire 1 1 700
100 065-01401-50 Spark Plug 1 700
110 065-50001-10 Spark Plug Cap 1 700
PKX310 / PKX320 - 25 - 03-12
Page 26
FIG. 7 ELECTRIC GROUP
FIG. 770
PKX310 / PKX320 - 26 - 03-12
Page 27
FIG. 7 ELECTRIC GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
700 277-76301-21 Oil Sensor Cp 1 770
705 KU3-11071-01 Float C/U Cp5 1 770
740 001-14061-60 Bolt and Washer Ay 2 770
741 015-00400-90 Tapping Screw 2 770
780 056-90000-20 Purse Lock 1 770
PKX310 / PKX320 - 27 - 03-12
Page 28
FIG. 42 PUMP GROUP
FIG. 4200
PKX310 / PKX320 - 28 - 03-12
Page 29
FIG. 42 PUMP GROUP
Ref. Part Number Description Qty Remarks To-From Fig.
110 470-01127-95 Casing 1 PKX310 4200
110 476-01215-47 Casing 1 PKX320 4200
115 470-01139-89 O ring 1 4200
120 470-01143-79 Inner Casing 1 PKX310 4200
120 476-01210-47 Inner Casing 1 PKX320 4200
130 470-01150-57 Impeller 1 PKX310 4200
130 476-01210-46 Impeller 1 PKX320 4200
140 470-01106-64 Mechanical Seal 1 4200
145 470-01104-91 Adjusting Washer 3 4200
150 470-01150-15 O ring 1 4200
170 470-01180-78 Plug Ay 1 4200
180 471-00000-50 Bolt and Washer Ay 4 4200
210 470-01127-96 Flange Bracket 1 4200
280 471-00000-03 Socket Bolt 4 4200
285 471-00000-02 Seal Washer 4 4200
310 470-01128-76 Suction Flange 1 4200
314 471-00000-50 Bolt and Washer Ay 3 4200
320 470-01127-99 Check Valve 1 4200
410 470-01133-37 Delivery Flange 1 4200
414 471-00000-34 Bolt and Washer Ay 4 4200
420 470-01105-84 Packing, delivery 1 4200
460 470-01180-79 Plug Ay 1 4200
510 470-01181-95 Strainer 1 4200
520 471-00000-06 Hose Band 3 4200
610 470-01283-85 Frame 1 4200
670 470-01105-15 Cushion Rubber 4 4200
680 471-00000-65 Bolt and Washer Ay 4 4200
681 471-00000-71 Bolt and Washer Ay 4 4200
684 471-00000-68 Spring Washer 4 4200
686 471-00000-66 Washer 4 4200
690 471-00000-57 Nut 4 4200
691 471-00000-57 Nut 4 4200
910 470-01214-67 Label, pump name 1 4200
PKX310 / PKX320 - 29 - 03-12
Page 30
Robin America, Inc
905 TFMTFS3PBEt-BLF;VSJDI*- 60047
1IPOFt'BY
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