Rayco RG1645S User manual
RG1645S
Sw i n g -Ou t St u m p Cu t t e r
Parts Ma n u a l
pantone
485
pantone
485
pantone
1235
www.raycomfg.com
This manual is published by Rayco
Manufacturing, Inc. for the benet of
the users of Rayco products. Rayco
Manufacturing, Inc. has made every
effort to ensure that this manual is
correct and up to date at the time of
publication. However, due to continuous
improvements, Rayco Manufacturing,
Inc. reserves the right to make changes
in the contents, at any time, without
notice or obligation.
Each machine shipped contains
operation, maintenance & parts manuals
to familiarize the operator with the proper
operating, lubricating and maintenance
instructions. This helps to ensure the best
possible performance and service from
the machine. Read and understand all
instructions before attempting to operate
this machine. This manual should be
readily available for reference at all times.
Additional copies of this manual may be
purchased from Rayco.
This Rayco machine was designed and
manufactured by Rayco Manufacturing,
Inc., Wooster, Ohio. Due to continuous
improvements, Rayco reserves the
right to make changes in engineering,
design and specications, or discontinue
manufacture, at any time, without notice
or obligation.
Always have a record of the model
numbers and serial numbers for your
machine to specify when ordering
parts. Record your machine model and
serial numbers below for your personal
records.
IDENTIFICATION NUMBERS
MODEL NUMBER SERIAL NUMBER
MACHINE
ENGINE
ATTACHMENT 1
ATTACHMENT 2
NOTICE:
MAINTENANCE AND REPAIRS SHOULD ONLY BE PERFORMED BY A TRAINED SPECIALIST
OR QUALIFIED PERSON.
PLEASE CONTACT RAYCO MFG FOR A LISTING OF APPROVED
MAINTENANCE FACILITIES IN YOUR AREA.
DEALER INFORMATION
NAME
ADDRESS
DEALER CONTACT PHONE NUMBER HOURS
SALES
PARTS
SERVICE
Contents 3
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
Table of Contents
Foreword
About These Manuals
Operator’s Manual...................................................................................................................4
Safety ..................................................................................................................................4
Operation.............................................................................................................................4
Maintenance........................................................................................................................4
Parts Manual ...........................................................................................................................4
Machine Description................................................................................................................5
Serial Number Location...........................................................................................................5
Design .................................................................................................................................5
How it Works .......................................................................................................................5
Serial Numbers....................................................................................................................5
Assemblies
Main Frame Assembly.............................................................................................................6
Boom Assembly.......................................................................................................................8
Idler Assembly ...................................................................................................................10
Swing Cylinder Assembly ..................................................................................................10
Lift Cylinder Assembly .......................................................................................................10
Pivot Assembly .................................................................................................................. 11
Curtain Assembly............................................................................................................... 11
Chip Guard ........................................................................................................................12
Chain Guard ......................................................................................................................13
Cutter Wheel Assembly .....................................................................................................14
Steering Axle Assembly.........................................................................................................15
Tie Rod Assembly..............................................................................................................16
Steering Pivot Assembly....................................................................................................16
Wheel Drive Assembly...........................................................................................................17
Handbrake Release Pump ...............................................................................................17
Dual Wheel Assembly.......................................................................................................18
Coupler Assembly.........................................................................................................18
Swing-out Assembly ..............................................................................................................18
Latch................................................................................................................................22
Blade .....................................................................................................................................23
Engine Assembly...................................................................................................................24
Engine Enclosure Assembly ............................................................................................30
Decal Kit ................................................................................................................................32
Schematics
Electrical Schematic ..................................................................................................................34
Hydraulic Schematic..................................................................................................................40
Adapter Kit.............................................................................................................................42
Hose Kit.................................................................................................................................42
Service
Safety Sales Kit .....................................................................................................................43
Service-Quick Reference.......................................................................................................44
Specications ............................................................................................................................45
Rayco Warranty Certicate........................................................................................................47
Contents
4
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
Foreword
About These Manuals
These manuals contain safety, operating, lubrication, maintenance, troubleshooting and parts information.
Read - study - keep them with the machine - adhere to all of the recommendations.
Where the engine is concerned, this manual
makes frequent reference to the Kubota
Engine Operator Manual, which was packed
in your operator’s kit. Keep it, therefore,
with these RG1645 Stump Cutter Manuals
so that it may be readily used.
NOTICE
Guards and covers may have been removed for illustrative purposes. Some photographs or illustrations in this publication
show details or attachments that may be different from your machine. Continuing improvement and advancement of product
design may have caused changes to your machine which are not included in this publication.
Whenever a question arises regarding your machine, or this publication, please consult Rayco for the latest available
information.
When the NOTICE heading appears in
this publication, what follows is either a
clarification or information that will assist
you in avoiding damage to the machine or
property.
NOTICE
Operator’s Manual
Safety
The “Safety” section lists basic safety precautions. In addition, this section identifies the text and locations of warning labels
used on the machine. Read and understand the basic precautions listed in the “Safety” section beforehand, and apply them
always as you operate, transport, perform maintenance, and repair the product.
Operation
The “Operation” section is a reference for the new operator and a refresher for the experienced one. This section includes a
discussion of machine controls and how to operate the machine.
Photographs and illustrations assist the operator in correct procedures of checking, starting, operating, and stopping the
machine.
Operating techniques outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of
the machine and its capabilities.
Maintenance
The “Maintenance” section is a guide to equipment care. A combination of step-by-step instructions and helpful illustrations
and photographs accompany maintenance items throughout this section.
Parts Manual
Parts are readily found through illustrations with accompanying Rayco part numbers. The machine is broken down into its
basic systems and assemblies to enable ease of finding parts. A separate engine Spare Parts Catalog is also provided for the
aid in identification and ordering engine parts. Please consult your local Kubota dealer or your local Rayco dealer for obtaining
engine parts and service.
Contents 5
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
Machine Description
Design
The RG1645S Super Junior stump cutter is designed for your maximum benefit for every dollar spent. The machine is
constructed for durability and easy maneuvering, for those hard to reach tree stumps and roots. Its 20” diameter cutting wheel
with 24 Rayco Superteeth is powerfully driven through a direct drive coupler to a 90 degree gearbox and a nickel plated chain
with a 44 horsepower Kubota turbocharged diesel engine at its source. Cutting boom motion and the self-propel drive are
entirely hydraulic, with 2 speeds. The hydraulic controls each include self-centering fingertip control levers.
The machine chassis features rectangular steel tubing and steel guard construction, mounted on extra grip-
ping deep tread tires. The operator benefits from a swing-out steel control station which allows optimal views
of the cutting action, all while being guarded by shatter resistant Lexan® and heavy rubber curtains.
The RG 1645 Super Junior has the unique ability to pass through a 36” gate under its own power. Other special features of
the RG 1645 include dual cross travel cylinders, a slewing ring that is used to pivot the cutter boom, replaceable composite
bushings on all cylinder ends, separate wheel drives for each wheel, 6.5 gallon fuel tank, steel chain guards, and an easy
access ignition switch on the control panel.
An additional safety feature is the optical eye sensor on the front of the control panel. At the point that the operator steps
away from the control station for more than 2 seconds, the machine will shut down.
Other options that have become standard on the RG 1645 are dual removable travel wheels for increased stability and travel
traction, Command Cut, and additional chip guards.
For further design information see the “Specifications” section of this Operator Manual.
REAR
FRONT
RIGHT
LEFT
Parts Section
6
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
MAIN FRAME ASSEMBLY (28471)
35
44
34
45
25
18
31
30
33
17 46
414849
382023921224036
28
27
26 29
8 55723
32
37
47
43
6
5
8
15
8
6
5
7
16
51
11 12 13
50
10
9
59
533235212 57 5617 42 19
4
54
586061
24
64
Parts Section 7
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
ITEM QTY. PART # DESCRIPTION
1 2 751019 BOLT WHIZ 3/8-16 X 1-1/2
2 6 750061 NUT-WHIZ 3/8-16 GR5
3 2 750762 BOLT WHIZ 5/16-18 X 3/4
4 1 724203 NUT-WING 5/16-18 NYLOCK
5 4 3963 WASHER, FLAT 1/4” SAE
6 4 722107 BOLT HEX 1/4-20 X 1 3/4
7 4 724508 NUT LOCK 1/4-20 NYLOCK
8 9 750768 NUT WHIZ 1/4”-20
9 12 800613 BOLT- METRIC 10-1.5 X 55
10 12 726954 WASHER METRIC LOCK M10
11 2 801075 ZERK-GREASE 10MM X 1.0
12 2 722202 BOLT HEX 5/16”-18 X 2-1/4” GR8
13 2 750050 NUT LOCK 5/16-18 NYLON
14 1 801569 BOLT HEX 5/16-18 X 4.25” GR8 ZP
15 2 750865 BOLT HEX 1/4-20 X 4
16 1 760853 BOLT HEX 5/16-18 X 4” GR8
17 6 722110 BOLT WHIZ 1/4-20 X 3/4
18 2 751027 BOLT WHIZ 3/8-16 X 1-1/4
19 2 724105 NUT HEX LOCK #10-24
20 1 722303 BOLT-HEX 3/8-16 X 1
21 2 750124 SCREW-FH SLOT 1/4-20 X 1
22 3 801514 BOLT WHIZ 5/16-18 X 1-1/2
23 5 750764 NUT WHIZ 5/16”-18
24 2 750764 NUT WHIZ 5/16”-18
25 1 28374 FRAME WELDMENT 1645SJRS
26 1 27046 RH SWING PIN
27 1 27041 LH SWING PIN
28 1 20396 SWING CYL. ASSY. LH SJRD
29 1 20397 SWING CYL. ASSY. RH SJRD
30 1 25868 HYD TANK RISER
31 1 765049 FUEL FILTER
32 1 764492 PUMP-FUEL, ELECTRIC C100
33 1 801234 VALVE-BLADE-W/CC
34 1 801412 WHEEL DRIVE BLOCK
35 1 730085 ZERK-GREASE 1/4-28 90DEG
36 1 23602 BLOCK SOA
37 1 23829 SWITCH MOUNT
38 1 28384 SOA SUPPORT BRACKET
39 1 23600 SOA BLOCK
40 1 801005 SNAP ACTING
41 1 736030 BATTERY-26R-60 25/35
42 3 736130 RELAY-SWITCHING (87a87)
43 1 761432 CIRCUIT BREAKER-50A
44 1 802207 RECEIVER, REMOTE
45 1 1200015 VALVE-OVERCENTER
46 5 761641 TRIM-EDGE TRIM-LOK 1/4”
47 1 751021 MANUAL-CASE, SMALL
48 1 17740 CABLE-BATTERY RED
49 1 17741 CABLE-BATTERY BLACK
50 1 21775 PIVOT HEAD ASSY. SJRD
51 1 800309 SLEWING RING
52 1 7617 HOLDDOWN ANGLE, BAT
53 1 23588 BATTERY BRACKET
54 1 28563 WRENCH
55 2 724107 SCREW-#6-32 X 1 HH
56 1 801842 BOOT-CIRCUIT BREAKER
57 2 761599 NUT LOCK #6-32 NYLOCKHOLD
58 2 730024 CLAMP-HOSE #4
59 1 15286 SERIAL NUMBER - VIN TAG
60 1 28346 CURTAIN ASM.
61 2 800983 GROMMET-RUBBER 2-1/4” ID 3/8”
THICK
62 1 802296 WRENCH-ALLEN 5/23”
63 5 800857 SEAL-RUBBER RIBBED 3/8” X 1/2”
64 1 28604 PUMP - HAND BRAKE RELEASE
ASM
MAIN FRAME ASSEMBLY (28471)
Parts Section
8
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
BOOM ASSEMBLY (25144)
9
119 1
6
4
14
12
15
3
2
13
8
5
7
1
16
ASSEMBLE WITH
LOCTITE 242 (BLUE)
ASSEMBLE WITH
LOCTITE 242(BLUE)
TORQUE TO 46 FT-LBS
ITEM QTY. PART # DESCRIPTION
1 1 25009 BOOM WELDMENT
2 4 726909 WASHER FLAT 1-1/4-14GA
3 2 760701 RING-RETAIN EXT 1 1/4”
4 4 726301 WASHER FLAT 3/8 USS
5 6 726302 WASHER-LOCK 3/8
6 4 722305 BOLT-HEX 3/8-16 X 1 1/2
7 2 18953 PIVOT WELD, BOOM
8 2 722303 BOLT-HEX 3/8-16 X 1
9 2 722502 BOLT HEX 1/2-13 x 1
10 2 726502 WASHER LOCK 1/2
11 2 4900-77 WASHER 7 GA. X .531 X 2.0
12 5 722114 WHIZ BOLT 3/8-16 X 3/4
13 1 800307 CLAMP-VINYL COVERED1-1/2”
14 2 21662 GEAR BOX SHIM
15 1 25131 PLATE, COVER
16 1 25120 IDLER ASSEMBLY
Parts Section 9
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
IDLER ASSEMBLY (25120)
7
5
8
9
1012
3
6
4
ITEM QTY. PART # DESCRIPTION
1 5 724801 NUT HEX 3/4-10 GR8
2 2 726502 WASHER LOCK 1/2
3 2 722502 BOLT HEX 1/2-13 x 1
4 1 2536-08 ROD,THREADED
5 1 25119 PLATE ADJUSTER
6 1 21187 ADJUSTER NUT
7 1 802264 TIGHTENER SHAFT
8 1 802263 SPROCKET 17T 50 SERIES
9 2 722539 BOLT CARR 1/2”-13 X 1-1/2
10 2 750057 NUT-WHIZ 1/2-13 Z
Parts Section
10
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
3
1
2
1
4
4
2
ITEM QTY. PART # DESCRIPTION
1 1 20392 CYLINDER WELD-SWING SJRD
2 3 760872 BEARING-GARMAX 1.25X1.00
3 1 750325 RING-RETAIN EXT HVY 1”
4 4 726907 WASHER FLAT 1-14GA
SWING CYL ASSEMBLY LH (20396)
SWING CYL ASSEMBLY RH (20397)
4
2
31
342
24
ITEM QTY. PART # DESCRIPTION
1 1 20395 CYLINDER WELD-SWING SJRD
2 3 760872 BEARING-GARMAX 1.25X1.00
3 2 750325 RING-RETAIN EXT HVY 1”
4 3 726907 WASHER FLAT 1-14GA
LIFT CYL ASSEMBLY(18771)
2
2
1
ITEM QTY. PART # DESCRIPTION
1 1 18772 CYLINDER-WELD 2-1/2 X 4
2 2 763587 BUSHING-1.50 X 1.25 X 1
Parts Section 11
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
PIVOT ASSEMBLY (21775)
5
10 11
NOTE: TORQUE
TO 40 FT-LBS
BLUE LOCTITE
91 8
764
23
ITEM QTY. PART # DESCRIPTION
1 1 21771 PIVOT HEAD WELD/MACH SJRD
2 2 18985 PIN, BOOM LIFT CYL.
3 2 726909 WASHER FLAT 1-1/4-14GA
4 2 760701 RING-RETAIN EXT 1 1/4”
5 3 750050 NUT LOCK 5/16-18 NYLON
6 2 764101 BOLT HEX 5/16-18 X 3 GR8
7 12 726954 WASHER METRIC LOCK M10
8 12 960108 BOLT- METRIC 10-1.5 X 45
9 2 763360 BEARING POLYGON 1.5 X 1.25 X
1.50
10 1 18994 PIN-CYLINDER, SWING
11 1 722201 BOLT HEX 5/16-18 X 2 GR8
12 2 726908 WASHER FLAT 1-1/4-10GA
CURTAIN ASSEMBLY (28346)
3
2
1
4 5
ITEM QTY. PART # DESCRIPTION
1 1 28341 CURTAIN, FRONT
2 2 19707 BRACKET WELD-CURTAIN
3 10 722118 BOLT WHIZ 1/4-20 X 1
4 4 724508 NUT LOCK 1/4-20 NYLOCK
5 4 726607 FENDER WASHER
Parts Section
12
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
16 10 4 5
986
178111045 8 11
7 12151
14 313142
CHIP GUARD (28330)
ITEM QTY. PART # DESCRIPTION
1 1 28341 CURTAIN, FRONT
2 2 19707 BRACKET WELD-CURTAIN
3 10 722118 BOLT WHIZ 1/4-20 X 1
4 4 724508 NUT LOCK 1/4-20 NYLOCK
5 4 726607 FENDER WASHER
Parts Section 13
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
1
12
6
3
4
10 23
79
8
11
15 13
5
14
16
CHAIN COVER ASM (25087)
ITEM QTY. PART # DESCRIPTION
1 1 25086 CHAIN COVER WELDMENT
2 1 23477 CHAIN GUARD SJRD
3 5 750124 SCREW-FH SLOT 1/4-20 X 1
4 5 724508 NUT LOCK 1/4-20 NYLOCK
5 10 750061 NUT-WHIZ 3/8-16 GR5
6 1 761052 PLUG - PIPE 1/2 C’SUNK
711 722114 WHIZ BOLT 3/8-16 X 3/4
8 3 722538 BOLT CARR 1/2”-13 X 1-1/4
9 1 801641 SEAL, CHAIN COVER
10 1 28333 SEAL,GEARBOX SHAFT
11 1 710307 SEAL-DUST
12 1 25082 PLATE, CHAIN COVER
13 1 28533 PLATE, CHAIN COVER
14 3 750057 NUT-WHIZ 1/2-13 Z
15 1 28560 GASKET, CHAIN ACCESS COVER
16 4 750399 BOLT WHIZ 3/8-16 X 1
Parts Section
14
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
1
2 22
3
18
9
TORQE TO 60 FT-LBS
USE BLUE LOCTITE
15
11
25
1915
20
26
27
14
7
21
8
13
6541228
4 5 6 16 23
24
1710
28597 SPACER,
BEARING
CUTTER WHEEL ASSEMBLY (28343)
ITEM QTY. PART # DESCRIPTION
1 1 130003 BUSHING-E 1-3/4
2 1 2583-04 3/8 KEYSTOCK X 1.75
3 2 761402 BEARING-PB 1-3/4
4 2 4900-33 WASHER 7 GA. X .531 X 2.25
5 2 726502 WASHER LOCK 1/2
6 2 722503 BOLT HEX 1/2-13 x 1 1/4
7 9 2933c TOOTH, ONE PIECE, C-BORED
8 9 2933t TOOTH, ONE PIECE, TAPPED
9 1 8562 BUSHING C.W. SHAFT
10 8 724602 NUT HEX 9/16-18 GR8
11 1 21914 GEARBOX KEY
12 1 22394 1/4” X 1.765” X 2.130”
13 3 3144C TOOTH, ONE PIECE, C-BORED
14 3 3144T TOOTH, ONE PIECE, TAPPED
15 2 763481 WASHER FLAT 1-3/4-10 GA.
16 1 762434 BUSHING-TAPER LOCK 2012 X 1-
3/4
17 8 801494 WASHER, 9/16”
18 4 722627 BOLT HEX 9\16-18 X 3-1/4 GR8
19 2 27356 BEARING COLLAR
20 2 761415 WASHER FLAT 1-3/4-14 GA.
21 24 718014 BOLT-POCKET 2 3/4 1960 S
22 1 28531 SHAFT, CW
23 1 2583-09 3/8 KEYSTOCK X 1 1/4
24 1 28584 CHAIN-DRIVE ASM #60 45SJRS
25 1 802266 SPROCKET-CHAIN 30T
26 1 28562 REWORK, SPROCKET
27 1 28515 CUTTER WHEEL
28 1 802262 ZERK-GREASE 1/8”NPT 90DEG
29 1 730080 GREASE ZERK 1/8 PTF STR
Parts Section 15
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
17 8 9 7
16897
18
14
19
1
15 11 12 3 10
13425
6
6
20
22
21
TORQUE ITEM
#1 TO 80 FT-LBS
RED LOCTITE ITEM # 2
TORQUE TO 115 FT-LBS
TORQUE SPINDLE NUT
TO 150 FT-LBS
ITEM QTY. PART # DESCRIPTION
1 8 724504 NUT LUG 1/2”-20
2 8 724501 NUT HEX 1/2-13 GR8
3 1 722201 BOLT HEX 5/16-18 X 2 GR8
4 8 722512 BOLT HEX 1/2-13 X 2.75GR8
5 8 726502 WASHER LOCK 1/2
6 2 4900-53 WASHER 1/4 X 1.531 X 2.38
7 4 726911 WASHER FLAT 1 1/2 14 GA
8 2 1200201 RING-RETAIN EXT 1-1/2”
9 2 729999 ZERK-GREASE 1/8”NPT 90DEG
10 2 760872 BEARING-GARMAX 1.25X1.00
11 1 20405 PIN PIVOT STEER AXLE
12 1 750050 NUT LOCK 5/16-18 NYLON
13 2 801472 MOTOR-ORBITAL 337CC
14 2 763859 HUB-WHEEL MOUNT
15 1 28377 AXLE, STEERING WELDMENT
16 1 28359 MOTOR MOUNT-FOLLOWER
17 1 28365 MOUNT, MOTOR LEADER ASM.
18 1 28379 TIE ROD ASM.
19 1 28381 CYINDER, STEERING ASM
20 1 802190 WHEEL LH 18X8.5-10
21 1 802191 WHEEL-TIRE ASM RH
22 1 764264 BUSHING, 1 X 3/4 X 1/2
STEERING AXLE ASSEMBLY (28403)
Parts Section
16
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
1
3
2
4
5
6
7 8
ITEM QTY. PART # DESCRIPTION
1 1 28378 TIE ROD
2 2 760609 ROD-END 3/4”
3 2 726803 WASHER, FLAT 3/4-14GA
4 2 760809 NUT-JAM 3/4-16 GR2 Z
5 2 726805 WASHER, FLAT 3/4-10GA
6 2 960304 BOLT HEX 3/4-10X2-
1/2GR8
7 2 765050 WASHER FLAT 3/4”
8 2 724800 NUT LOCK 3/4-10 STOVER
TIE ROD ASSEMBLY (28379)
3
5
2
14
STEERING PIVOT ASSEMBLY (28377)
ITEM QTY. PART # DESCRIPTION
1 1 28375 AXLE, STEERING
2 1 7770 HOUSING-PIVOT PIN
3 2 11993 HOUSING-KNUCKLE PIN
4 2 750662 BUSHING-1.75 X 1.50 X2.75
5 1 28376 EAR, STEERING CYLINDER
STEERING CYLINDER ASSEMBLY (28381)
ITEM QTY. PART
#
DESCRIPTION
1 1 28380 CYLINDER, STEERING WELDMENT
2 1 20406 PIN-STEER CYL
3 1 722107 BOLT HEX 1/4-20 X 1 3/4
4 1 724508 NUT LOCK 1/4-20 NYLOCK
5 1 765313 BUSHING-COMP 1.25 X 1 X 1.25
6 1 4900-78 WASHER- 7 GA X .406 X 1.75
7 1 722114 WHIZ BOLT 3/8-16 X 3/4
67
3 2 4
5
Parts Section 17
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
64 1 3 2 85 7119 10
ITEM QTY. PART # DESCRIPTION
1 2 801687 MOTOR-ORBITAL 337cc W/BRAKE
2 2 763859 HUB-WHEEL MOUNT
3 8 724504 NUT LUG 1/2”-20
4 2 28420 BRACKET, WHEEL MOTOR
MOUNTING
5 1 28478 WHEEL-TIRE INNER LH
6 1 28485 WHEEL-TIRE INNER RH
7 6 750764 NUT WHIZ 5/16”-18
8 6 722855 BOLT SOCKET SHOULDER 3/8
9 8 724501 NUT HEX 1/2-13 GR8
10 8 762886 BOLT HEX 1/2-13 X 5.25 GR8
11 8 726502 WASHER LOCK 1/2
WHEEL DRIVE ASSEMBLY (28481)
HANDBRAKE RELEASE PUMP (28604)
2
1
5
4
3
ITEM QTY. PART # DESCRIPTION
1 1 802251 PUMP - HAND BRAKE RELEASE
2 1 802250 VALVE-MINI BALL
3 1 802301 FIT-4FOR -2MP
4 1 802302 FIT-4MOR-4FOR SW
5 2 802298 BOTTLE-HYD. OIL
Parts Section
18
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
32
4
1
ITEM QTY. PART # DESCRIPTION
1 1 28480 WHEEL-TIRE OUTER LH
2 1 19892 WRENCH, DUAL WHEEL
3 1 28486 WHEEL-TIRE OUTER RH
4 6 3549 COUPLER ASSEMBLY
DUAL WHEEL (28482)
41 32
ITEM QTY. PART # DESCRIPTION
1 1 3549W COUPLER WELDMENT
2 1 4900-08 WASHER 1/4” X .406 X 1
3 1 750061 NUT-WHIZ 3/8-16 GR5 HNFS
4 1 750060 PIN-ROLL 3/32 X 7/16”
COUPLER ASSEMBLY (3549)
41 32
41 32
Parts Section 19
Copyright © 2012 Rayco Mfg - All Rights Reserved Rayco RG1645S Stump Cutter
Printed in U.S.A.
SWING-OUT ASSEMBLY (28278-D)
22
16
18
17
23
16
14
13
31
24
20 33 59
30
41
39
7
26 15 16
343 6 8
34
28
11
36 35
419 27 29
21 10
1225
37323840
42
22
16
18
17
23
16
14
13
31
24
20 33 59
30
41
39
7
26 15 16
343 6 8
34
28
11
36 35
419 27 29
21 10
1225
37323840
42
Parts Section
20
Rayco RG1645S Copyright © 2012 Rayco Mfg - All Rights Reserved
Printed in U.S.A.
22
16
18
17
23
16
14
13
31
24
20 33 59
30
41
39
7
26 15 16
343 6 8
34
28
11
36 35
419 27 29
21 10
1225
37323840
42
SWING-OUT ASSEMBLY (28278-D)
Table of contents
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