KNUCKLEBOOM LOG LOADERS
335C 435C 437C
335C 435C 437C
K N U C K L E B O O M L O G L O A D E R S
PAGES
2–3
MORE UPTIME. MORE PRODUCTIVITY.
C-SERIES LOADERS ARE BUILT FOR
THE LONG HAUL.
Keep your landing busier than ever with the highly reliable, highly productive
C-Series Knuckleboom Loaders.
Full Tree System—No one offers the
extensive product line,dealer network
and tough, purpose-built machines
of John Deere.
335C 435C 437C
John Deere 6068T Engine Power 170 gross hp 127 kW 170 gross hp 127 kW 170 gross hp 127 kW
Reach 30 ft. 9.1 m 32 ft. 9.7 m 32 ft. 9.7 m
Standard Operating Weight 26,500 lb. 12 020 kg 29,500 lb. 13 381 kg 29,500 lb. 13 381 kg
Lift Capacity @ 10 ft. 12,916 lb. 5859 kg 26,100 lb. 11 838 kg 26,100 lb. 11 838 kg
Your log loader is the key to productivity. It must be strong, fast and
able to endure a steady pace, day after day. That punishing logging
environment is exactly what the C-Series Knuckleboom Loaders
were designed to handle.
Integrating woods-tested John Deere parts and rigorous quality
control, these industry-leading machines have many new features
that directly impact your bottom line. For better productivity, we
increased swing torque, horsepower, hydraulic pump flow and lift
capacity. For maximum durability and stability, the box section on
the booms has been designed for optimum strength. And we’re
keeping your operating costs low with serviceability and a high
degree of common parts for the entire line. Add in the 437C with
load-sensing hydraulics for a complete line of tough, woods-ready
loaders that are built to stand the test of time, and whatever else
you throw their way.
PRO DUC TIV ITY UPT IME LOW DAI LY OPE RAT I NG COS T S
Keep your work area in sight with bestin-class visibility featuring a wraparound
Our isolation-mounted
cab is the industry
leader in both size and
noise level. It features
335C 435C 437C
A John Deere 6068T
K N U C K L E B O O M L O G L O A D E R S
turbocharged diesel
has the high torque
rise you need.
insulated all-weather
protection, comfortable
pilot-operated joystick
controls and a deluxe
adjustable cloth seat
with lumbar support.
rear window, polycarbonate skylight and
industry-first hinged side window that
serves as a second exit.
PAGES
4–5
A dedicated swing circuit
gives you continuous power
for more productive delimbing
and loading.
Load-sensing hydraulic
system delivers power
on demand, reducing
fuel consumption and
parts wear.
C-SERIES LOADERS. T
A large 90-gallon fuel tank means
more productivity per fill up, while
quick, deck-level access to service
points speeds daily maintenance
for more time on the job.
Application-specific
boom design to ensure
greater reliability.
Strong swing-bearing
arrangement.
ORS fittings to keep
your machine dry.
Component commonality
among the C-Series
Knuckleboom Loaders
lowers your investment
in spare service parts.
MORE RELIABILITY MEANS
“LOADS” MORE PRODUCTIVITY.
From boom to bearing mount, hydraulics to hose routings, we toughened the
335C 435C 437C
K N U C K L E B O O M L O G L O A D E R S
C-Series Loaders with woods-tested John Deere parts and manufacturing
expertise to give you more uptime than ever.
PAGES
6–7
When it comes to uptime, we designed the C-Series Loaders
to not only set the pace for your landing, but also the pace
for the industry. Uptime on these machines has been increased
dramatically. Hydraulics include better hose routings and
ORS fittings. Faster boom and swing speeds pick up the
pace at your landing.
The larger 90-gallon
fuel tank will give
you more running
time than ever.
The lower structure has been designed, with the center tube
integrated into the lower main structure, load lock valves are
mounted directly to the outrigger cylinders. The many design
changes have strengthened the new C-Series Loaders making
them the toughest machines in the industry.
The dependable power—a John Deere 6068T,
6-cylinder, turbocharged diesel engine provides all
the power you need to keep loading, day after day.
A single main cylinder
means fewer parts
and improved visibility
to work area.
Boom cylinder hose bulkhead
has been relocated to the boom
base creating shorter hoses that
are easier to change.
We not only changed the machines, we changed the
plant in which they’re built. John Deere quality control
and assembly processes have been integrated into
every step of the C-Series Loader manufacturing.The
result is a loader that sets the pace for the industry.
Improved hose
routings and ORS
fittings keep
machine dry.
335C 435C 437C
K N U C K L E B O O M L O G L O A D E R S
PAGES
The largest cab in the industry
also allows the most visibility,
with a wraparound rear window,
polycarbonate skylight, and
hinged side window that serves
as a second exit.
8–9
A COMFORTABLE
OPERATOR
IS A PRODUCTIVE
OPERATOR.
With the new C-Series cabs, hard work
never felt this easy.
The C-Series Loaders feature an isolation-mounted, insulated,
all-weather cab that’s the largest and quietest in the industry. From
low idle to high idle, noise levels are dramatically lower than any
other machine in its class, allowing your operator to relax and be
more productive than ever. Visibility is optimum with wraparound
rear window and a polycarbonate skylight. At the operator station,
pilot-operated joystick controls, a deluxe adjustable cloth seat,
HVAC system and an AM/FM/CD stereo create a commanding
and comfortable position for the operator. Your operator will be
able to spend more time out in the woods doing what he does best.
Visibility was also
increased to the
front working area
by changing the
boom design to a
single cylinder.
Add the optional
HVAC package to
keep your operator
comfortable
year round.
Joy sticks are
ergonomic in
design with all
gauges and
switches located
with good sight
line to the console.
Cabs are isolated
mounted, reducing
noise and vibration.
335C 435C 437C
THE NEW 437C
LOAD SENSING THAT MAKES SENSE.
If you know the old saying, “work smarter not harder,” then you know
what the 437C Loader with load sensing is all about.
It’s a simple concept—use only as much power as you need.
The results, however, are remarkable. The 437C with load
sensing not only minimizes heat generation, reduces
hydraulic load, and improves fuel economy, it also gives
your operator better control with lower noise levels. The
K N U C K L E B O O M L O G L O A D E R S
joystick position determines your system speed, with the
system automatically adjusting the pressure.
And, while other machines share hydraulic flow with all
functions equally, the 437C offers multi-functioning with
main and stick functions as one section, and swing functions
as another. It’s load sensing that not only improves your
uptime and productivity, it just makes sense.
PAGES
10–11
The437C load-sense system featurestwopump variable displacement with dedicated
swing pump for significant reduction in
fuel consumption and noise levels.
The 437C shares a common platform and
engine with the 335C and 435C creating
consistency across the line.
The combination of load-sensing hydraulics,
for reduced fuel consumption, and a larger
fuel tank, keeps your loader running longer
between fill-ups for greater productivity.
WHEN IT COMES TO KEEPING YOUR
COSTS LOW, WE’RE VERY ACCESSIBLE.
Loggers need machines that are easy to maintain, and easy to keep
335C 435C 437C
K N U C K L E B O O M L O G L O A D E R S
on the job. The C-Series Loaders are designed to be exactly that.
PAGES
• A clean and level lower deck offers a
better work platform for service.
• Lower platform redesign offers
improved access to the bearing bolts
and hydraulic manifold.
No one likes maintenance. But when it’s easy to do, it gets
done faster and more often. The C-Series Loaders are
designed to help you take care of daily maintenance quickly
so your operators can get back to more productive work. It’s
simple things like a fuel filler tube located off the deck for
convenient filling and less spill risk.
Rest assured that your purpose-built John Deere Forestry Equipment
is supported by the most extensive dealer network in the industry and
unsurpassed parts availability.That’s our promise.
• The C-Series Loaders also feature
improved hydraulic manifold mounting,
retention, and hydraulic hose access
from both upper and lower frame.
• All machines are backed by
John Deere parts and support
programs, and a dealer network
that’s second to none.
The C-Series Loaders also have more common parts, from
boom tubes and pins to hydraulic plumbing. This ensures
parts availability and familiarity. And of course, all C-Series
Loaders share the John Deere standard quick, deck-level
access to service points for faster servicing. It all translates
into less time doing the maintenance your machines require
and more time on the job building your logging business.
12–13
TECHNICAL DATA 335C 435C 437C
ENGINE 335C 435C 437C
Models/Cylinders .....................................Deere 6068T, 6-cylinder turbocharged diesel.... Deere 6068T, 6-cylinder turbocharged diesel...Deere 6068T, 6-cylinder turbocharged diesel
Maximum Horsepower @ 2,200 rpm .......170 hp (127 kW).............................................. 170 hp (127 kW).............................................170 hp (127 kW)
Fuel Tank Capacity....................................90 gal. (285 L)................................................. 90 gal. (285 L)................................................90 gal. (285 L)
HYDRAULIC SYSTEM
Pumps ......................................................Triple-gear pump assembly @ 2,200 rpm........ Triple-gear pump assembly @ 2,200 rpm.......Tandem variable displacement,
SYSTEM PRESSURE
Main..........................................................2,300 psi 158 bar............................................ 2,700 psi 186 bar...........................................3,625 psi 250 bar
Jib.............................................................2,300 psi 158 bar............................................ 2,950 psi 203 bar...........................................3,625 psi 250 bar
Swing........................................................2,400 psi 165 bar............................................ 3,300 psi 227 bar...........................................3,300 psi 227 bar
CYLINDERS
Boom (1)
Bore......................................................7.5 in. 190.5 mm............................................. 8 in.203 mm .................................................7 in. 178 mm
Rod.......................................................4 in. 101.6 mm................................................ 4 in.101 mm..................................................4 in. 101 mm
Jib
Bore......................................................7 in. 177 mm................................................... 6.5 in.165 mm...............................................6 in. 152 mm
Rod.......................................................3.5 in. 89 mm.................................................. 4 in.101 mm..................................................3.5 in. 89 mm
Stabilizer (4)
Bore......................................................6 in. 152 mm................................................... 6 in.152 mm..................................................6 in. 152 mm
Rod.......................................................3 in. 76 mm .................................................... 3 in.76 mm....................................................3 in. 76 mm
Filtration ...................................................10-micron return ............................................ 10-micron return ...........................................10-micron return
Fill System................................................Hand pump through return filters..................... Hand pump through return filters....................Hand pump through return filters
Reservoir ..................................................100 gal. 378 L................................................. 100 gal. 378 L................................................100 gal. 378 L
55–50–43 gpm 208–184–161 L/min 60–60–43 gpm 227–227–161 L/min load sensing @ 2,100 rpm
117 gpm 443 L/min
solid solid
solid solid
with integral lock valves solid, with integral lock valves solid, with integral lock valves
ELECTRICAL SYSTEM
Alternator..................................................12 volt, 95 amp, self-energizing ...................... 12 volt, 95 amp,self-energizing......................12 volt, 95 amp, self-energizing
Batteries...................................................Two 12 volt with master disconnect switch ..... Two 12 volt with master disconnect switch.....Two 12 volt with master disconnect switch
Lights (3)...................................................Two front,one side .......................................... Two front, one side .........................................Two front, one side
BOOM
Knuckleboom............................................30 ft. 9,1 m..................................................... 32 ft. 9,75 m ..................................................32 ft. 9,75 m
Boxed plate design with bolt-on heel bar Boxed plate design with bolt-on heel bar Boxed plate design with bolt-on heel bar
SWING SYSTEM
Rotation ....................................................360-degree continuous................................... 360-degree continuous ..................................360-degree continuous
Speed .......................................................9 rpm.............................................................. 10 rpm ...........................................................8.5 rpm
Drive .........................................................Two-stage planetary gearbox ........................ Two-stage planetary gearbox .........................Two-stage planetary gearbox
Bearing.....................................................42 in. 1067 mm O.D. hardened gear ............... 42 in. 1067 mm O.D. hardened gear...............42 in. 1067 mm O.D. hardened gear
Swing Torque............................................30,683 ft.-lb.41 600 Nm................................. 36,000 ft.-lb.48 809 Nm................................36,000 ft.-lb. 48 809 Nm
with gear motor with piston motor with piston motor
Greaseable from cab Greaseable from cab Greaseable from cab
OPERATING WEIGHTS
Standard Equipment.................................26,500 lb. 12 020 kg....................................... 29,500 lb. 13 381 kg......................................29,500 lb. 13 381 kg
TECHNICAL DATA 335C 435C 437C
335C MAXIMUM RATED LIFT CAPACITY
Lift capacities are limited by hydraulic relief and do not include grapple weight.The figures in the chart represent rated lift capacities; actual lift capacities are related to unit
stability,which will vary with choice of carrier, rotational attitude of turntable in relation to carrier, and terrain conditions on the worksite.
REACH
335C 435C 437C
ELEVATION
20 ft.
(6,10 m)
15 ft.
(4,57 m)
10 ft.
(3,05 m)
5 ft.
(1,52 m)
435C AND 437C MAXIMUM RATED LIFT CAPACITY
Lift capacities are limited by hydraulic relief and do not include grapple weight.The figures in the chart represent rated lift capacities; actual lift capacities are related to unit
stability,which will vary with choice of carrier, rotational attitude of turntable in relation to carrier, and terrain conditions on the worksite.
K N U C K L E B O O M L O G L O A D E R S
20 ft.
(6,10 m)
15 ft.
(4,57 m)
10 ft.
ELEVATION
(3,05 m)
5 ft.
(1,52 m)
10 ft. (3,05 m) 15 ft. (4,57 m) 20 ft. (6,10 m) 25 ft. (7,62 m) Maximum
N/A 10,125 lb.
(4593 kg)
N/A 10,792 lb.
(4895 kg)
12,916 lb.
(5858 kg)
11,928 lb.
(5410 kg)
10 ft. (3,05 m) 15 ft. (4,57 m) 20 ft. (6,10 m) 25 ft. (7,62 m) 30 ft. (9,14 m) Maximum
N/A 13,422 lb.
N/A 15,785 lb.
26,100 lb.
(11 839 kg)
11,762 lb.
(5335 kg)
(6088 kg)
(7160 kg)
18,464 lb.
(8375 kg)
20,596 lb.
(9342 kg)
13,708 lb.
(6217 kg)
15,449 lb.
(7007 kg)
12,217 lb.
(5544 kg)
13,153 lb.
(5966 kg)
14,352 lb.
(6510 kg)
15,292 lb.
(6936 kg)
9,338 lb.
(4235 kg)
9,968 lb.
(4521 kg)
10,850 lb.
(4921 kg)
11,593 lb.
(5258 kg)
REACH
10,996 lb.
(4988 kg)
11,357 lb.
(5151 kg)
11,849 lb.
(5375 kg)
12,152 lb.
(5512 kg)
8,346 lb.
(3786 kg)
8,774 lb.
(3980 kg)
9,053 lb.
(4106 kg)
9,220 lb.
(4182 kg)
N/A 5,741 lb. @ 29.8 ft.
8,559 lb.
(3882 kg)
9,944 lb.
(4510 kg)
9,733 lb.
(4415 kg)
3,443 lb. @ 27.6 ft.
1562 kg @ 8,41 m
3,225 lb. @ 29.3 ft.
1463 kg @ 8,93 m
3,717 lb. @ 30 ft.
1686 kg @ 9,14 m
3,143 lb. @ 30 ft.
1426 kg @ 9,14 m
2604 kg @ 9,08 m
5,636 lb. @ 31.3 ft.
2556 kg @ 9,54 m
5,707 lb. @ 32.1 ft.
2589 kg @ 9.78 m
5,954 lb. @ 32 ft.
2700 kg @ 9,75 m
PAGES
14–15
OPERATOR’S STATION
Fully enclosed; isolated mounting; insulated;
40 in. (1016 mm) x 60 in.(1524 mm); two
sliding windows; tinted safety glass; dual front
windshield wiper; windshield washer; Lexan
skylight with integral guard; fan; horn; deluxe
cloth, fully adjustable suspension seat with lumbar
support, seat belt,and armrests; instrument/control
panel; with emergency exit window.
STANDARD EQUIPMENT
Hydraulic System
High-volume remote hydraulics
Knuckleboom
335C
30-ft. (9.1 m) knuckleboom with bolt-on heel bar
435C and 437C
32-ft. (9.8 m) knuckleboom with bolt-on heel bar
Operator’s Station
Cigarette lighter
Fire extinguisher
Grease gun
Heavy-duty front windshield guard
Parts, operator and maintenance manuals
Pilot-operated joystick controls
Powerpoint outlet
Sun visor
Air conditioning
AM/FM/CD stereo
Cobra 40-channel CB
OPTIONAL EQUIPMENT
Grapple
A variety of designs and sizes available
to match the application
Rotobec Heavy-Duty Log Grapples factory installed.
Grapple Rotator
4042HD RT252
4042HD RT504
4048HD RT504 (435C, 437C only)
4552HD RT504 (435C, 437C only)
A
335C, 435C AND 437C KNUCKLEBOOM LOADERS
A 101 in.2563.7 mm (435C/437C only)
B 87.4 in. 2220.6 mm
C 94 in.2392 mm
D 38.25 in. 971.5 mm
E 55 in. 1397 mm
F 22 in. 558.8 mm
G 164.4 in. 4176.5 mm
H 335C - 360 in. (30 ft.) 9144 mm
435C/437C - 384 in. (32 ft.) 9754 mm
J Varies with grapple option
K 120 in. 3048 mm
L 161 in. 4089 mm
M 34.75 in. 883 mm
N 93.7 in 2380 mm
P 98.14 in. 2493 mm
Q 173 in. 4397 mm
R 184.5 in. 4688 mm
S 213.66 in. 5427 mm
T 11.5 in. 292 mm
K N U C K L E B O O M L O G L O A D E R S
335C 435C 437C
NOTHING RUNS LIKE A DEERE.
™
Maybe those words are the reason why almost every
other professional logger is a John Deere customer.
They’re just five simple words. Yet they have profound
impact on your company. Because at their heart they
mean equipment that is built forest tough, with greater
productivity, more uptime and lower daily operating
costs. They mean a dealer network over 380 locations
strong, with immediate access to parts and experts that
understand your industry. They mean a dedicated lender
Your world is logging. So is ours. John Deere Forestry. Leading the way, worldwide.
in John Deere Credit, committed to helping loggerssucceed
with competitive financing to enhancecash flow. And they
mean a global forestry equipment leader that invests more
in R & D than any other manufacturer.
But most of all, thesewords represent the confidence that
comes with over 168 years of heavy equipment experience.
ww w.J o hn D ee r e .c o m
DKA335CKBL Litho in U.S.A. (05-06)
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