SETUP, PARTS & MAINTENANCE
MANUAL TURFCAT 600 SERIES
Model:
946718TURFCAT - 623D 2WD AXLE US
946719TURFCAT - 628D 2WD AXLE US
WARNING: If incorrectly used this machine can cause severe injury . Those who use
and maintain this machine should be trained in its proper use, warned of its dangers
and should read the entire manual before attempting to set up, operate, adjust or
service the machine.
FOR USE WITH OPERA TION & SAFETY MANUAL 4114896
4114895 REV B
CALIFORNIA
Proposition 65 Warning
WARNING
Diesel engine exhaust and some of
its constituents are known to the State
of California to cause cancer, birth
defects and other reproductive harm.
Californie Proposition 65
Avertissement
Les échappements des moteurs diesel
et certains de leurs composés sont
reconnus par l’Etat de Californie pour
être cancérigènes, provoquer des
défauts congénitaux et d’autres dangers
en matière de reproduction.
California Advertencia
de la Proposicion 65
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects or other reproductive harm.
AVERTISSEMENT
L’émission du moteur de ce matériel
contient des produits chimiques que
l’Etat de Californie considère être
cancérigènes, provoquer des défauts
congénitaux et d’autres dangers en
matière de reproduction.
ADVERTENCIA
El estado de California hace saber que
los gases de escape de los motores
diesel y algunos de sus componentes
producen cáncer, defectos de
nacimiento y otros daños en el
proceso de reproducción humana.
El estado de California hace saber
que los gases de escape de este
producto contienen productos
quÍmicos que producen cáncer,
defectos de nacimiento y otros daños
en el proceso de reproducción
humana.
600 Series
Turfcat
Tractors
IMPORTANT MESSAGE
Thank you for purchasing this Jacobsen product. You have purchased a world class mowing product, one of the best
designed and built anywhere.
This machine comes with an Operation and Safety Manual and a separate Setup, Parts and Maintenance Manual.
The useful life and good service you receive from this machine depends to a large extent on how well you read and
understand these manuals. Treat your machine properly, lubricate and adjust it as instructed, and it will give you many
years of reliable service.
Your safe use of this Jacobsen product is one of our prime design objectives. Many safety features are built in, but
we also rely on your good sense and care to achieve accident-free operation. For best protection, study the manuals
thoroughly. Learn the proper operation of all controls. Observe all safety precautions. Follow all instructions and
warnings completely. Do not remove or defeat any safety features. Make sure those who operate this machine are
as well informed and careful in its use as you are.
See a Jacobsen dealer for any service or parts needed. Jacobsen service ensures that you continue to receive the
best results possible from Jacobsen products. You can trust Jacobsen replacement parts because they are
manufactured with the same high precision and quality as the original parts.
Jacobsen designs and builds its equipment to serve many years in a safe and productive manner. For longest life,
use this machine only as directed in the manuals, keep it in good repair and follow safety warnings and instructions.
You'll always be glad you did.
PARTS SECTION .................................................................................................................................................. 17
FRAME & FRONT AXLE ASSEMBLY ................... FIGURE 1 .......................................................................18, 19
Unauthorized modifications may present extreme
safety hazards to operators and bystanders and could
also result in product damage.
Textron Golf, Turf & Specialty Products strongly
warns against, rejects and disclaims any
modifications, add-on accessories or product
alterations that are not designed, developed, tested
and approved by Textron Golf, Turf & Specialty Products
Engineering Department. Any Textron Golf, Turf &
Specialty Products product that is altered, modified or
changed in any manner not specifically authorized
after original manufacture–including the addition of
“after-market” accessories or component parts not
specifically approved by Textron Golf, Turf & Specialty
Products–will result in the Textron Golf, Turf & Specialty
Products Warranty being voided.
Any and all liability for personal injury and/or property
damage caused by any unauthorized modifications,
add-on accessories or products not approved by
Textron Golf, Turf & Specialty Products will be
considered the responsibility of the individual(s) or
company designing and/or making such changes.
Textron Golf, Turf & Specialty Products will vigorously
pursue full indemnification and costs from any party
responsible for such unauthorized post-manufacture
modifications and/or accessories should personal
injury and/or property damage result.
SPECIFIC TORQUES:
BLADE BOLT: 70 FT-LBS (95 Nm)
WHEEL HUB NUTS: 300 FT-LBS (407 Nm)
REAR WHEELS:80 FT-LBS (108 Nm)
FRONT WHEELS: 55 FT-LBS (75 Nm)
PTO CLUTCH BOLT TO 45 FT-LBS (61 Nm)
This symbol means:
ATTENTION!
BECOME ALERT!
Your safety and the safety of others is involved.
Signal word definitions:
The signal words below are used to identify levels of
hazard seriousness. These words appear in this
manual and on the safety labels attached to Textron
Golf, Turf & Specialty machines. For your safety and
the safety of others, read and follow the information
given with these signal words and/or the symbol
shown above.
DANGER indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious
injury.
WARNING indicates a potentially hazardous situation
which, if not avoided, COULD result in death or
serious injury.
CAUTION indicates a potentially hazardous situation
which, if not avoided, MAY result in minor or moderate
injury. It may also be used to alert against unsafe
practices or property damage.
CAUTION used without the safety alert symbol
indicates a potentially hazardous situation which, if
not avoided, MAY result in property damage
2
MODEL NUMBER: This number appears on
sales literature, technical manuals and price lists.
SERIAL NUMBER: This number appears only on
your mower. It contains the model number
followed consecutively by the serial number. Use
this number when ordering parts or seeking
warranty information.
600 Series
Turfcat
Tractors
All references to "right" or "left" or
"front" or "rear" are with respect to an
operator in the tractor seat.
TRACTOR ASSEMBLY
1. STEERING WHEEL ATTACHMENT
–Attach the steering wheel to the shaft by lining up
holes R in each and inserting the roll pin.
ASSEMBL Y & SETUP
2. TRACTOR WHEEL ATTACHMENT
a) Attach the tractor wheels to the hubs.
b) Torque the front wheel bolts to 55 ft-lbs and the
rear wheel lug nuts to 80 ft-lbs.
NOTE - Check lug nut torque after the first 10 hours of
use and adjust if not still within the initial range.
3
ASSEMBL Y & SETUP
3. SEAT ATTACHMENT
a) Spring suspension seat
–Make sure the seat is bolted securely to the
suspension spring.
–Bolt the suspension spring securely to the center
of the seat plate using hardware provided in the
tractor loose parts bag.
–Locate the two plastic clips and attachment
hardware in the tractor loose parts bag. Attach the
clips to the bottom of the seat plate and secure,
with the throttle cable passing through the clips as
shown.
600 Series
Turfcat
Tractors
b) Deluxe suspension seat
–Drop the four bolts at the base of the seat
suspension into the corresponding holes in the
seat plate.
–Locate the two plastic clips in the tractor loose
parts bag. Place these two clips on the front two
seat bolts protruding through the seat plate,
guiding the throttle cable through them as shown.
Secure all four seat bolts with the nuts provided.
c) Seat Switch (either seat) - Route the seat switch
cable up through the hole in the seat plate and
attach to the connector at the base of the seat.
4. Tractor and deck tire pressures should be 14 p.s.i. (1 kg/cm2). Adjust if necessary.
5. Check battery electrolyte level and charge. Use protective equipment such as, but not limited to, goggles,
face shield, rubber gloves, and apron.
Deluxe Suspension Seat
Bottom side of seat plate
6. Before starting the machine:
–Fill the fuel tank.
–Top up the engine sump if lubricating oil is low.
–Top up the radiator with a 50% antifreeze solution if low.
–Top up the hydraulic system if fluid is low.
–Lubricate at designated points (refer to the lubrication section in this manual).
–Read and understand the Operation & Safety manual, paying particular attention to safety, control and
operation information.
4
600 Series
ASSEMBL Y & SETUP
Turfcat
Tractors
CUTTERDECK ASSEMBLY & SETUP
1. CASTER WHEELS
a) Uncrate the deck. Remove the casters from deck mounting plates P. Reassemble to the mounting plates
with reference to the height of cut chart on the deck cover or in the cutterdeck section of this manual.
b) Place blocks under the rear of the deck so that the bottom edge is approximately parallel with the ground.
2. PREPARE TRACTOR
a) Start the tractor. Push the lift lever forward to fully
extend the deck chains. Stop the engine.
b) Mount each push arm to a tractor differential
bracket B using a 5/8-18x3-1/2 hex head bolt, two
spacers S, lockwasher and nut N arranged as
shown. Tighten securely.
Caster mounted in "HIGH" position
Left arm mounting shown
5
ASSEMBL Y & SETUP
3. PREP ARE PTO SHAFT SECTIONS
a) Pull apart the two sections of the PTO drive shaft.
NOTE: The PTO shaft and tube sections fit
together only one way , with a blocked off area
between two external splines fitting into a missing
spline in the tube.
b) Attach flange F on the shaft section to the tractor
with four 3/8-16x1-1/4 screws and lockwashers.
c) Slide coupling G of the tube section over deck
gearbox shaft. Tighten on shaf t securely .
600 Series
Turfcat
Tractors
4. ATTACH DECK TO TRACTOR
a) Unpack the deck mounting kit.
b) Roll the deck in place under the tractor.
c) Lay push arms from the kit between the deck
hanger brackets.
d) Move the deck toward the tractor while sliding the
splined sections of the PTO shaft together . Make
sure the blocked off section of the shaft is aligned
with the missing spline in the tube.
e) Once the PTO halves are fully together , line up the
hole at the end of each push arm with mating
holes in the brackets. Insert pin P for each push
arm. Secure push arm pins at each end with
(2) 5/16-18 X 7/8 bolts and (2) 5/16-18 nuts.
G
F
6
600 Series
Turfcat
Tractors
5. ATTACH LIFT CHAINS TO DECK
a) Verify that the bottom link of the deck chains
reach the deck bracket mounting holes. If not, the
deck cylinder may need to be further lowered with
the tractor lift lever or the chains checked for
routing problems.
b) Anchor the bottom link of each chain to the
bracket with 5/16-18 x 1-1/4" bolts and washers,
first making sure the chains drop straight without
twisting. Secure with lock nuts.
6. HEIGHT ADJUSTMENT PINS
ASSEMBL Y & SETUP
a) Identify with reference to the height of cut chart on
the deck belt cover or in the cutterdeck section of
this manual the desired hanger pin location.
b) With the cutterdeck slightly raised, insert an
adjustment pin in the same location for each
hanger.
7. VERIFY DECK LEVELING
a) Place the deck on level ground and determine
whether the deck appears to be level.
b) Two spacers and self tapping screws are provided
to adjust deck height at the push arms.
Disconnect the push arm and attach one spacer
L, as illustrated. Reconnect push arm and verify
leveling.
c) Repeat operation with other spacer if needed.
Check deck leveling. With the deck on flat ground
verify the deck is level. If not level, add one or
more spacers S1 to the top of the push arm on the
low side, and recheck.
7
ASSEMBL Y & SETUP
8. WEIGHT TRANSFER SPRINGS
Secure the weight transfer springs as follows to allow
them to rotate during normal deck operation:
a) Start the engine and fully raise the deck. Support
it by hooking the deck latch to the frame floor
board. Stop the engine.
b) Spring Top - For each of the two 3/8-16 x 1-1/2"
bolts, run a flanged nut to the end of the threads,
which leaves a shank section exposed. Hook one
end of a spring over the shank of each bolt. Insert
the bolts from the inside of bracket BT toward the
front of the tractor. Secure each bolt with another
flanged nut on the outside.
c) Spring bottom - Assemble large washer W and
spacer R on each of the two 3/8-16 x 1" bolts.
Place the hook on the other end of each spring
over the spacer. Insert the bolts into brackets BB
facing inward and secure each on the inside
surface with a flanged nut.
d) Slightly lift the deck to release the deck latch.
Rotate it downward out of the way.
600 Series
Turfcat
Tractors
Finished installation
9. LUBRICATE
FRONT
INSIDE
–Lubricate the fittings at the deck end of the two deck push arms.
8
600 Series
Turfcat
Tractors
SERVICE NOTES:
–Verify cutterdeck belt tension at the first 5,10 and 15 hours of operation.
–Change engine oil, hydraulic oil and both filters after first 50 hours of operation.
–Change differential fluid after first 100 hours of operation.
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9
MAINTENANCE
600 Series
Turfcat
Tractors
Arrows show lubrication points.
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600 Series
Turfcat
Tractors
CLEAN MACHINE
The cooling system must be checked and cleaned
daily to prevent engine overheating (more often under
especially dirty conditions).
Procedure:
1. Remove radiator screen S.
2. Clean the radiator, oil cooler and radiator screen of
any grass chaff or debris using compressed air.
3. Replace the radiator screen.
MAINTENANCE
BATTERY MAINTENANCE
–Check fluid level in battery B periodically. If low,
top up with distilled water.
–When connecting or disconnecting battery, follow
the procedure given at right.
When working with battery fluids:
–Always use protective equipment, such as, but
not limited to, goggles, face shield, rubber gloves,
and apron.
–If skin is exposed to battery acid, rinse
immediately with very large amounts of water;
then seek medical attention.
WARNING
–Sparks or flame can
start explosion.
–Disconnect negative (–)
battery terminal first.
–Reconnect negative (–)
battery terminal last.
11
MAINTENANCE
HYDRAULIC SYSTEM
General procedures:
–Lower implements attached to lift arms to relieve
hydraulic pressure from system before servicing.
–When servicing hydraulic pipe fittings, do not use
teflon tape. Use a liquid sealant that will dissolve
into system.
–Make sure all hydraulic connections are tight
before applying pressure to system.
Routine service:
Check hydraulic fluid level in reservoir sight glass G.
Normal level is approximately in the center.
Replace fluid and filter at intervals shown in the service
chart. The hydraulic filter, a spin-on cannister type, is
located at H below the seat plate.
600 Series
Turfcat
Tractors
Draining procedure:
The fluid is drained through a brass fitting at the
bottom of the reservoir.
1. Place a 9/16" wrench on the flats of the drain
fitting.
2. While holding the wrench to prevent the fitting from
turning, remove the drain plug.
3. After draining, hold the wrench on the fitting flats
again while tightening the drain plug.
Leaks:
Fluid in the hydraulic system is under high pressure.
Escaping hydraulic fluid can penetrate skin and cause
serious injury. If injured by escaping hydraulic fluid,
see a doctor at once. Serious infection or reaction
can develop if proper medical treatment is not
administered immediately.
Locating leaks: Do not use your hands to attempt to
feel a spray. Instead, pass an object like cardboard
over hydraulic system components to visualize a
spray.
W ARNING
–Leaks can penetrate
skin.
–Seek immediate
medical attention for oil
penetration injury.
12
600 Series
MAINTENANCE
Turfcat
Tractors
ENGINE OIL
See Engine Manual for manfacturer's recommendations. Before using the machine for the first time, check the
oil level in the engine crankcase with crankcase dipstick D. When checking oil level, make sure the machine is
on level ground.
To change engine oil:
1. First warm up the engine. Shut off engine when
warm, remove oil drain plug P and drain the oil
from the sump.
2. Clean plug and replace.
3. Re-fill sump at S with the recommended engine
oil.
NOTE: After oil has been added, wait one minute and
then check level of oil again with the dipstick D.
Engine oil filter:
–The oil filter cartridge O is easily reached at the
right side of the tractor.
–See the tractor service chart or recomendations of
the engine manufacturer for proper replacement
intervals.
–Apply a thin film of oil to the seal when replacing
the cartridge. Check for leaks after starting the
engine.
–Check oil using dipstick D and top off if
necessary.
13
MAINTENANCE
AIR CLEANER
Clean and replace the air cleaner element as specified
in the service chart. Uneven running, lack of power or
black exhaust fumes may indicate a dirty air cleaner.
To replace diesel engine air cleaner element:
1. Unclamp end cover Y and remove element Z.
2. Insert new element and replace end cover,
clamped in position as shown on the cover.
600 Series
Turfcat
Tractors
COOLANT
The quantity of fluid in the coolant system is indicated
by the fluid level in overflow bottle O.
–Keep the overflow bottle approximately 1/4-1/2 full.
–When filling, use a 50/50 mixture of antifreeze and
water.
14
600 Series
Turfcat
Tractors
WATER FUEL SEPARATOR
The machine is equipped with a water fuel separator
that traps water in the fuel. If the water is not removed
from the fuel system, extensive damage can occur in
the fuel injection system.
Water will collect at the bottom of the see-through
bowl A and appears a different color than the fuel.
Remove the water as follows:
1. Drain water by opening the self-venting drain valve
B and allowing all water to escape. Re-tighten
drain valve.
2. The entire water separator assembly can be
removed by turning counterclockwise while
gripping black grip C
NOTE: Always bleed the fuel system of air after
removing the water from the separator.
MAINTENANCE
BLEEDING AIR FROM FUEL
If any service has been performed on the fuel manager
water separator or fuel filter, first purge air from the fuel
manager (Steps 1-3) otherwise skip to Step 4.
1. Loosen the air vent D one to two turns.
2. Fully depress hand primer pump plunger E until all
air has escaped.
NOTE: Step 2 may take up to 60 pumps.
3. Close the air vent D.
4. Bleed the air in the fuel lines from the fuel
manager to the injector pump by loosening the air
vent bolt F on the injector pump.
5. Set the parking brake.
6. Turn the keyswitch, cranking the engine until all
air has escaped. Turn keyswitch to the off
position.
7. Tighten the air vent bolt F.
HAND PRIMER PUMP
R
The hand primer pump is used to purge air from the
fuel system. The entire pump assembly is replaceable
if necessary. See parts section for service parts.
1. Remove the small black retaining ring H carefully
as it is spring loaded.
2. Remove hand pump components and replace with
new components
15
MAINTENANCE
FUEL FILTER
1. To change the fuel filter only, first remove the seethrough water separator bowl. See water fuel
separator procedure on the previous page.
2. Remove the large black retaining ring G.
3. Pull the filter element straight down. Do not twist
as the filter element is not threaded.
4. Dispose the old filter element according to local
laws.
5. Align key in filter element with the slot in the
header and push the new filter element up into the
filter head.
6. Place retainer ring G. Hand tighten retainer ring
until it clicks and the arrows line up in the center
of the header.
7. Replace the water fuel separator.
600 Series
Turfcat
Tractors
NOTE: Always bleed the fuel system of air after
changing the fuel filter.
HYDRAULIC NOTES
–Lower implements attached to lift arms to relieve hydraulic pressure from system before servicing.
–When servicing hydraulic pipe fittings, do not use teflon tape. Use a liquid sealant that will dissolve into
the system.
–Make sure all hydraulic connections are tight before applying pressure to system.
When checking for leaks, do not use your hands to attempt to feel a spray. Instead, pass an object like
cardboard over hydraulic system components to visualize a spray. Escaping hydraulic fluid can be under
sufficient pressure to penetrate skin and cause serious injury. If injured by escaping hydraulic fluid, see a
doctor at once. Serious infection or reaction can develop if proper medical treatment is not administered
immediately.
2-2464025-20NUT-HEX 3/4-16 SLOT U2
2-2564163-26WASHER,.766 ID X 1.6254
2-2664140-5COTTER PIN-1/8X1-1/22
2-2764140-1COTTER PIN-1/8X12
2-2848043-04C S CONE,OUTER BEARING2
2-29148058-01 ROD END R.H1
(INCLUDES ITEMS 15 & 19)
2-3064025-16NUT-5/8-18 RH1
2-312198231WHEEL ASM, 18 X 8.52