John Deere 6601 Combines Operator’s Manual Instant Download (Publication No.OMH83747)

1
JOHN DEERE
6601
Y
C
D
COMBINE
OPERATORS MANUAL JOHN DEERE 6601
COMBINE OMH83747 D1 English
D 1
O M H 8 3 7 4 7
JOHN DEERE HARVESTER WORKS OMH83747 D1
LITHO IN THE U.S.A. ENGLISH
2
To the Purchaser
This new combine was carefully designed and
manufactured to give years of dependable service.
To keep it running efficiently, read the
instructions in this operator's manual. Each
section is clearly identified so you can easily
find the information you need wh ether it is
operation, Iubrication, or service. Read the
Table of Contents to learn where each section is
located. Use the alphabetical index for fast
reference. This safety alert symbol
identifies important safety messages in this
manual. When you see this symbol, be alert to the
possibility of personal inj u- ry and carefully
read the message that follows. I n addit ion to
the equipment furnished with your combine,
attachments are available to help you do a better
job in special crop conditions. These are de-
scribed in the attachments section of this man
ual and can be purchased from your John Deere
dealer.
"Right-hand" and "left-hand" sides are determined
by facing in the direction the combine will
travel when in use. Record your combine serial
numbers in the space provided on page 69. Your
dealer needs this informa- tion to give you
prompt, efficient service when you order parts or
attachments. I f your com bine req uires
replacement parts, go to your Joh n Deere dealer
where you can obtain Genuine Joh n Deere parts-
accept no substitutes. The warranty on this
combine appears on your copy of the purchase
order which you should have received from your
dealer when you purchased the combine.
3
Contents
Page
Controls and instruments
Operation
4
Safety suggestions
26
Lubr ication and periodic service
27
Service
32
Trouble shooting
59
Storage
65
Attachments
66
Specifications 69 Index ......
....................................
.................................... 71
TO
John Deere 660 I Combine with Belt Pickup and
Straw Chopoer Special Attachments)
4
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Controls and Instruments
This section illustr ates all controls and
instruments necessary for succes sf ul field
operation. For an explana- tion of each control
and instrument, refer to the page reference
given. Before attempting to operate your new
combine, become f amiliar with the location and
purpose of its controls and instruments. Study
these pages car ef ully, regard less of your
previous combine experience. SW ITCH BOX
P L A T F 0 RP
IJ X L 0A 0 1NG A \JGE R S X I T C H
Grain Tank Unlo ading Auger Switch - Page
21 Grain Tank Unloading Auger Warning Light -
Page 21 Platform gwitch - Page 11 Platform
Switch Warning Light - Page 11 Straw Walker
Plugging Warning Horn - Page 67 Light Switch -
Page 21
6
Controls and Instruments 8
CONCAVE
rAt seEE 9 C0iit R0
CYLINDER
Cleaning Fan Speed Control Wheol 9age t8
CHAFFER AND SIEVE
Sieve Opening Tonmoi tever - Peg ts Shutter 0
ninpControlI evers - Pa9e f9
7
Operation
TRACTOR HOOKUP CAUTION Operate the 6601 Combine
at 1000
SWITCH BOX
rpm PTO speed only. Operaling the combine at any
other PTO speed can resull in machine damage or
personal injury.
The switch box is wired at the factory for
tractors with a 12-volt electrical system or a
split electrical system (24-volt starting)
. Instructions for hook up of switch box wires
are on pages 7 and 8.
YOKE ASSEMBLY
LOCKING CLAMP
Diode Panel The diode panel in the switch box is
wired for trac- tors with a negative-ground
electrical system.
1-43/6d"
IIMPORT NTMa ke CerToin Ti m ing Hol es in Y oke
and ShaIf A re in L i ne wh en Assemb Iin g.
0 O
Should it become necessary to disturb locking
clamp on hitch tube powershaft, make certain
bear- ing and yoke assemblies are assembled on
the shaft, using dimensions given in the
illustration above for proper position. Failure
to do so will cause misalign- ment of hook up
parts. IMPORTANT Under normal circumstances,
lock- ing clamp should not be moved unless it
becomes necessary to replace parts.
When using a tractor with a positive-ground
electri- cal system, rotate the six-pin connector
180 degrees.
8
Operation S ATTACHING SWITCH BOX AND WIRING TO
ALL TRACTORS WITHOUT CABS AND TO TRACTORS WITH
CABS PRIOR TO 1968 I f switch box and wiring
have not already been in- Harness Plate (Cabs
Only) stalled on tractor, proceed as
follows Switch Box

1. Secure switch box support bracket to seat
   frame, using existing hardware.
2. Secure switch box to support bracket, using two
   1/4 x 1/2-inch cap screws.

9 / 6 4 "
1 9 / 6 4
9/ 3 2 " ( 3 H 0L E S )
t C3FgfMl. 3Y0ÏË 3CCiÉgÏïtS

1. Cut and drill mo! es, to dimensions shown, in
   right-hand rear of cab.
2. Attach harness plate to cab, using three 1/4 x
   7/8-inch truss head machine screws. Install
   grom- mets in harness plate.
3. (Not IIlustr ated) Run wires from switch
   box through holes in harness plate.

9
6 Operation
SW ITCH BOXContinued Attaching Switch Box To
Tractors with Cabs 1968 And Up
1. Secure switch box support bracket to cab,
using existing hardware. On the 4520 Tractor the
swatch bex support bracket will have to be
mounted in the second and third hole from the
front of the fencler.

1. Cut and d will hol es, to d mens ions shown , in
   right-hand ear deck of cab.
2. Attach harness plate to rear decK, using three 1
   /4 x 7/8-inch truss head machine screws. Install
   grommet s in harness pl ate.
3. (Not IIlustrated) Run wires from switch box
   through holes n harness plate.

1. Secure switch box to bracket, using two 1 /4 X 1
   / 2-inch cap screws and two 9/32 x 5/8 x
   .060-inch flat washers.
2. Run wires from switch box through clip and at-
   tach clip to cab, using existing hardware.

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Operation 7
ATTACHING COMBINE TO TRACTOR
/\/O7F 1.' To prevent accidental discharging of
tra c- for batteries when trac tor-combine
hook-up is ie ft un ati ended, disconnect s
ix-pole plug mom tractor.
NOTE 2 Adapt the tractor remote hydraulic cy/in-
der valve housing tor single-action c ylinder
operation. See tractor operator's manual.
Couple hydraulic hose to tractor No. i hydraulic
circuit Oreakawa y coupler.
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8 Operation ATTACHING COMBINE TO
TRACTORContinued The illustrations below show
wire connections between switch .box and battery
for various tractors. Also see step 2 on page 7.
6 y 0 L T O O O
12 Y 0 L T
0
0
2
Gasoline and LP-Gas 4010 - 4020
Diesel 4000 - 4320 - 4520 - 4620 4020 f20/, 00
I- )
F R0PT BATT E R Y
O O O
2
OO
O O 2
L E FT - HA XD BA 7 TE R Y
G R E E fi
O O O
OO
O O R I GH T - HA II D B A I T ER Y
24 V 0 L T S tA R T I NG
80 Z 0 I P E C 0 n h E C T 1 0 h
TOO
- OO 51 TCH 80 X k I RE C0 x X ECT 1014
0 0 0
Y E LL 0 V
REAR BAT7 ERY
Diese/ 4010 - 4020 (
-20 f000J
Diesel
12
Operd/iOO 9
Hookup Adjustments Adjust hitch plates,
powershaft, tractor drawbar, and turning stops as
shown below.
1. Drawbar to be straight with truCt0fi PTO shut
t.
H 00 K U P T 0 T RA C T 0 R - 1 00 0 R P P
n 0 c A o d o Si B U u P r R S i 0 C0 s TA ci
R A r RA CT0 R I R fi S 0 P R fi Y E N T T 0 R
h I h0 TO 0 SH0 R T . L 0 F GE R 8 L X P F R H J
ST AL EA Y S B E 0 \ L E F T - HA R 0 S D E 0 F H
T C H T JB E .
3. Bear ing box can be adjusted up or down In
conjunction with hitch plates so powershaft runs
In a straight llne.
2. Adjust beorlng supports up or down so po.
ershaft runs straight.
ST R A I GH T L F E B E A R I XG B 0 X
l5-l-l'4
F 0 T E H T T C H C L E \/ I S C/\ L 8 E AT T A
C HE D T 0 THE T 0 P 0 R B 0 T T 0P S0 S E P
ARAT0 R I S L E Y E L
C L E Y l S
COMBINE BREAK-IN Follow the lubrication
instructions and periodic service information
closely (page 27).
STARTING THE COMBINE CAUTION Make certain no one
is standing near enough la the combine or tractor
Io touch any moving parts. Warn everyone to sland
clear. When tractor is properly warmed, idle
engine and engage PTO slowly to engage the
separator. Then run tractor at rated PTO
speed. Check the speed of the primary
countershaft with a speed indicator (page 45) .
The countershaft should operate at 1500 rpm with
separator empty and not under load. I f the
countershaft speed is incorrect, chec k tractor
PTO speed. I f PTO is not operating at proper rpm
rated speed, see your John Deere dealer.
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10 Ope ration
TRANSPORTING
.HITCH PIN
P 0 S I T i 0 FI
P 0 S I T I 0N
This combine is designed for easy and safe trans-
porting, The width of the combine can be reduced
by folding unloading auger back along separator,
remov- ing the platform, and moving the hitch. To
fold unloading auger back along separator, un-
fasten over-center lock and swing outer auger bac
k. Secure outer end of auger against separator
with transport ioc k (page 53) . IMPORTANT
Always fold unloading auger back along separator
and disconnect powershaft when transporting
the combine. Three locking positions are provided
for the sw ing- ing hitch. The inside locking
position is for fiel d opera- tion. The center
locking position is for loading and transporting
the combine on a flat car. Under no cir-
cumstances will you need to use this center
position once the combine has been removed from
the flat car.
The outer position loc ks the hitc n for highway
or fiel d tr ansport ng. To secure hitch tube n
transpoting position, raise platform to its
highest position. Re- move hitch pin from
operating position and swing hitch tube inward as
far as pos sible. I nstalI hitch pin in
transporting position. CAUTION Always use the
hydraulic cylinder safety stop (page 12) when
transporting the combine with the platform in
raised position. The combine s equipped w ith a
slow moving vehi- cle emblem on the rear hood,
lignts, grain tan x refl ec tors, and red
reflective tape on the backside of the plattorm
tor Transpoting protec tion. Keep the em- blem,
reflectors, and lights clean. CAUTIO/4 When
transporting the combine on a road or highway at
night or during the day, use the lights and
devices provided on the combine for adequate
warning to the operators ol other vehi cies. In
this regard, check your local governmental
regulations.
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Opera tion 11 FIELD AND CROP OPERATING
ADJUSTMENTS This section explains all field and
crop operating adjustments. Adjustments which are
required to compensate for wear and misalignment
are explained in the SERVICE section, page 32.
For illustrations of controls not shown in this
section, see the CONTRO LS AND INSTRUMENTS
section, page 2. PLATFORM F E ED E R C0 R YE Y0
R
PLATFORM AUGER
RETRAC7T F1NGERS
Platform performance depends largely on main-
taining correct unit speeds (page 23) and keeping
the platform as level as possible (page 33)
. While servicing the platform, always use the
hy- draulic cylinder safety stop (page 12)
. Platform Switch Push switch (page 2) down to
disengage clutch. Push switch down again to
engage clutch.
The platform receives the crop and moves it to
the front of the feeder house by means of an
auger. Re- tracting fingers on the auger feed the
mater ial to the feeder conveyor. The operation
and height of the platform is con- trolled by the
operator from the tractor seat. By oper- ating
the platform switch, an electric clutch is either
engaged or disengaged, allowing the platform to
be started or stopped immediately. When the
switch ac- tivates the electr ic clutch, a
warning light on the switch box glows red. The
height of ihe platform is controlled by the trac-
tor remote cylinder operating lever.
Platform Switch Warning Light The warning light
(page 2) glows red when the plat- form switch is
activated.
15
12 Operation Platform Height Control
After transporting or completing work on the
plat- form, attach safety stop to support chain
for storage.
Platform Auger The platform auger is set at the
factory with 1/8- to 5/8-inch clearance between
the auger flights and platform bottom. This
setting is required for most crops and
conditions. I f the auger is too high or does not
have the same relationsh ip at both ends, mater
ial may not be fed properly to the feeder
conveyor. I t may be necessary to raise the auger
when com - bining coarse stemmed crops or heavy
windrow s. When repositioning the auger,
maintain the same measurement between the outer
ends of the auger and the platform
bottom. Retracting fingers in the auger are
adjustable to obtain Ihe best delivery to the
feeder conveyor.
Remote Cylinder Opera ting Le vers on 4020 macros
Raise and lower the platform with the remote
cylin- der operating lever on the tractor. To
raise the plat- form, push the lever forward. To
lower the platform, pull the lever rearward.
Hydraulic Cylinder Safety Stop
Sa/efy Position CAUTION Always use the safety
stop when working on the platform or when
transporting the combine in the lield or on the
highway. To place the stop in safety position,
first extend hydraulic cylinder. Disconnect the
support chain from the safety stop and position
the safety stop on the pis- ton rod.
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Opera tion 13
Adjusling Auger Height On righ t-hand side of
platf orm, loosen two nuts A. To raise the
auger, loosen nut B" and tighten nut C. To
lower the auger, loosen nut C and tight- en
nuI B . On the left-hand side, loosen nuts A"
and nut B." To raise the auger, tighten bolt
C. To lower the au- ger, loosen bolt C."
Tighten nut B" and nuts A." IMPORTANT Keep
auger level be certain there is ai.\pIe
clearance lor the auger fingers and proper
clearance between auger IIighIs and shipper.
Check drive chain tension (page 35).
Adjusling Auger Forward or Rearward
Right- Hand Side
On right-hand side of platform, loosen the two
bolts "D" in the adjusting bracket. Move auger
to the nec - essary position, and tighten
nuts. NOTE Do no I disturb finger height set
ling. On left-hand side, loosen nut D" and
tighten nut "E" to move the auger rearward.
Loosen nut E" and tighten nut "D" to move the
auger forward. Adjusting Finger
Clearance Maintain equal clearance between both
the end finger bearings and the finger cranks, as
illustrated. Loosen lock nut F" on right-hand
side of platform and move shaft in or out as
necessary. Then secure shaft in position by
tightening lock nut F."
LeIt- Han d Side
Adjusting Finger Height On the right-hand side of
the platform, loosen the two bolts G" in the
adjusting bracket and pivot the top of bracket
forward to move the extended fingers down on the
auger tube. Minimum clearance between fingers and
platform bottom is 1/8 to 1/4 inch. Tight- en
nuts. To move fingers up, reverse the
procedure. NOTE Do no I dis turb the auger for
ward and rear- wa rd adustm ent.
FIHGER CRANK
FINGER
SET CLEARANCE THE SAFE BOTH ENDS
17
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44 Operation
FEEDER HOUSE
F E E D E R C 0 X '/ E Y0 R
P L AT F ORB
Conveyor Chain Adjust the chain until the slats
begin to rise off the rear of the feeder house
bottom at the row of counter- sunk bolts (page
35) . Too much slack allows the chain links to
jump the sprocket teeth. Do not overtighten the
chain.
Conveyor Chain Float Floating action of the
conveyor accommodates
varying volumes of material. Adjust the conveyor
float" so a 1/8-inch space exists between a slat
and
the feeder house bottom directly under the leeder
drum (page 36) .
19
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