New H4A Hydraulic Winch for the John Deere 450

2012
VOL. 31 NO. 2
New H4A Hydraulic Winch for the
John Deere 450-650 and 700 Dozers
I
ncreasing numbers of John Deere dealers have been
asking for a hydraulic winch alternative to fit on
their JD450-550-650 and 700 dozers. Many bids
specify hydraulic winches. Many applications require
the smooth speed control of hydraulic winches. Until
now, the only winch readily available for these dozers
has been a mechanical winch.
Good news! Allied now offers a hydraulic alternative—
the model H4A hydraulic winch.
The JD 450-550-650 and the 700 dozers have traditionally been fitted with the JD4000S winch, a PTO-driven
mechanical winch known for its power in forestry
applications. But as John Deere small dozers expand
their market reach to a wider range of applications
such as oil and gas well services, power line sagging,
equipment rescue, and construction support, the need
for a hydraulic winch alternative becomes apparent.
The H4A hydraulic winch offers significant advantages
over the traditional mechanical winch in certain applications.
A hydraulic winch, on the other hand, reduces the
shock loading to near zero. The winch hydraulic system’s pressure relief valve is a built-in limiter to overloading, further reducing the possibilities for failure.
For John Deere dealers, an additional advantage is
maintaining competitiveness in the market. Many bids
in this dozer class specify hydraulic winch, and many
applications require precise control. While competitive
dozers like Caterpillar and Komatsu have the option
of hydraulic winches available to meet these requirements, John Deere had no easy options. Until now. The
arrival of the H4A winch for John Deere small dozers
meets the challenge.
All Allied towing winches are engineered from the
ground up as a rear-mounted attachment for dozers.
As such, they are designed to take the abuse you can
expect of an exposed part of a crawler dozer. The H4A
frame is built from steel plate, making it less brittle
than a cast frame and thus better able to withstand
shock loading.
(Cont. on next page)
First is precision control of line speed and the ability
to control line placement to a fraction of an inch. A
mechanical winch takes the engine power at its PTO
output through several winch gear reductions to deliver slower RPM at the winch drum. The only way to
smoothly engage the winch drum is to slip the winch
clutch. No matter the skill of the operator and the
design of the winch, regardless of brand, smooth engagement is always a challenge.
A hydraulic winch, on the other hand, delivers smooth
winch engagement and precise speed control. This is
especially important in new applications such as power
line sagging, cable plowing and spotting equipment
down slopes.
Another big plus is smooth gear engagement. Mechanical winches, being directly coupled to the dozer PTO
output, are subject to shock loading. Inexperienced
operators may overload a mechanical winch, which
frequently leads to early failures.
The John Deere 450J equipped with Allied H4A winch.
The same winch fits 550J/K and 650J/K. With a different
mounting bracket and driveline, it also fits the 700H/J/K.
(Cont. from previous page)
The winch features our SelfContained Hydraulics (SCH) configuration, where the hydraulic
pump and motor are contained
inside the winch frame, for protection and winch integrity. You
may easily move the winch from
one dozer to the next without
having to worry about hydraulic
system contamination and loose
hydraulic parts scattered around
outside the winch frame.
Options for the H4A winch
include a four-roller fairlead,
a bolt-on drawbar, and a logging arch. Logging customers
will appreciate having the arch
engineered and built specifically
for the winch by the same winch
manufacturer.
Brandt Tractor sales rep Matt Haley in Fort McMurray is eager to see
the H4A hydraulic winch go into service.
The H4A also makes dealer inventory control simple.
It can be installed on 450J, 550J/K and 650J/K dozers.
With a simple conversion kit, the H4A winch can also
be fitted on the 700H/J/K dozers.
Adjustable
4-Roller Arch
Installing the H4A winch is not much different than
installing a 4000S mechanical winch. The H4A winch
is powered by the same PTO, which drives the hydraulic pump located inside the H4A winch case. Like the
4000S, the H4A has access to all the horsepower available from the PTO for powerful line pull.
(Cont. on next page)
PTO-Driven
Pump
H4A Winch for JD450-700
“Plug and Play”
Easy Installation
Hydraulic
Motor
Rating
40,000 lbs
18,200 kg
Line pull, bare drum
38,200 lbs
17,400 kg
Line pull, full drum
21,300 lbs
9,700 kg
Maximum line speed, bare drum
83 ft/min
25 m/min
Maximum line speed, full drum
149 ft/min
45 m/min
277 ft
84 m
@ wire rope dia.
5/8 inch
16 mm
Weight
1,680 lbs
760 kg
Cable capacity
The H4A features Self-Contained Hydraulics (SCH) design. The
hydraulic pump and motor are contained inside the winch
frame for protection and integrity, and are isolated from the
dozer hydraulic system. Winch power comes from the John
Deere PTO output.
(Cont. from previous page)
As long as the dozer is fitted with the PTO option (John
Deere option code 7975), the winch comes complete
with all necessary mounting parts and control lever for
simple installation. Control is through a pilot-controlled
joystick installed on the operator console. No mechanical adjustment is required.
The first installation of the H4A winch was done on
a 450J dozer for John Deere dealer Brandt Tractor in
Regina, Saskatchewan, Canada. The service technicians
found that the H4A is easier and faster to install than
a traditional mechanical winch. They immediately noticed the precise line speed control the H4A delivers.
The 450J has since been shipped to a waiting customer
in Fort McMurray, Alberta. This is the center of the
Canadian tar sands oil production area. Ground conditions are often very difficult, and dozers used in tar
sands work almost always require a winch, primarily
for self-rescue and for rescuing other vehicles. The
H4A winch is expected to give the 450J smooth pulling
capability for easier rescue work.
Allied PTO Winch Now Available on
John Deere 750J/K and 850J/K
T
he Allied PTO winch option is back. Responding
to many requests from customers to bring back
the PTO-driven winch option for the new 750850J/K dozers, Allied worked closely with John Deere
engineering to provide this winch option.
While a hydraulic winch is great for smooth speed
control for most oil field work, power line sagging and
construction applications, its line speed is considered
too slow in certain applications, particularly for production logging outside of North America.
The John Deere 750J/K and 850J/K dozers represented a
major departure from the John Deere 750C and 850C.
Until recently, the current “J” and “K” series dozers
offered only the high-flow pump option for hydraulic
winches while the previous “C” series dozers offered
the PTO option. For a rear-mounted towing winch,
this change meant moving from the PTO-driven Allied W6F winch to the Allied H6H hydraulic winch. For
most North American applications, the new Allied H6H
hydraulic winch has proven to be very successful and
readily accepted.
Furthermore, a PTO winch option configured for logging is available from other competitive dozer manufacturers such as Caterpillar and Komatsu. John Deere
customers who remember the strong power and fast
line speed of the Allied PTO winch on 750C and 850C
have been particularly eager to see the additional
choice of a PTO-driven winch back on the currentgeneration machines.
(Cont. on next page)
The W6F winch on a John Deere 850J is ready to go to work in a New Zealand forest. The PTO winch is configured for fast
line speed and high line pull for logging. The optional arch shown enhances productivity by lifting the butt ends of the logs to
permit larger loads and faster travel speed to the landing.
The H6H hydraulic winch is ideal for general applications where smooth line speed control is preferred over fast line speed.
(Cont. from previous page)
Thanks to excellent cooperation between John Deere
Engineering and Allied Systems Company, the PTOdriven W6F winch for current-generation 750 and 850
“J” and “K” series dozers is now available. The PTO delivers all the available engine horsepower to the winch
for high line pull and fast line speed. This is especially
welcome news for forestry customers in tropical logging, where both high line pull and fast line speed are
required for productivity.
John Deere dealers now have the choice of Allied
H6H hydraulic winches for general applications where
smooth line speed control is important, and the PTOdriven W6F winch for fast line speed, especially for
high-volume logging.
To get your new 750-850J/K with PTO option, just
specify JD option code 7975. The dozer will arrive with
the PTO installed, ready to accept the W6F winch.
Following initial winch testing at Deere Engineering
in Iowa, USA, the first customer unit with PTO-driven
winch went into service in New Zealand in April 2012.
John Deere dealer Cableprice Equipment in Rotorua,
New Zealand installed an Allied W6F winch equipped
with logging arch on an 850J. Dealer sales representative Paul Roche said the winch delivered everything
their customer had hoped for.
A fleet of W6F winches is on its way to John Deere
dealer P.T. Hexindo in Indonesia to fit on 750-850J
dozers destined for the tropical forests.
Production logging depends on speed, and the W6F
winch delivers both high line pull and fast line speed.
This combination keeps the John Deere 750J/K and
850J/K more competitive in tropical forestry markets.
A short video of the winch in action can be seen by
following this link to YouTube: http://www.youtube.
com/watch?v=hZhpg1W5rtI&feature=plcp
A newsletter published by
Allied Systems Company
Winch Division
21433 SW Oregon Street
Sherwood, OR 97140-9799 U.S.A.
Telephone: 503.625.2560
Fax: 503.625.7269
www.alliedsystems.com