Allied Systems SDN Manual

B45-015, REV. 9/21
Installation, Maintenance
and Service Manual
SDN, SJN, SLJ, SLN AND SPN
Heavy Duty Sideshifters

B 45-015, REV. 9/21
TABLE OF CONTENTS
SECTION 1 NAMEPLATE LOCATION .............. 3
SECTION 2 MODEL NUMBER DESCRIPTION 4
........................................................................ 5, 6
SECTION 3 SAFETY SUMMARY ..................... 7
3.1 Safety Information...................................7
3.2 Safety Regulations..................................7
3.3 Safety Symbols.......................................7
3.4 Labeling ..................................................7
3.5 Training ...................................................7
3.6 Personnel Safety.....................................8
3.7 Pre-start Checks.....................................8
3.8 Operation Warnings................................8
3.9 Hydraulic Hazards .................................9
3.10 Electrical Hazards.................................9
3.11 Maintenance Warnings .........................9
3.12 Load Handling ....................................10
3.13 Load Positioning .................................10
3.14 Operator’s Controls ............................11
3.15 Industry Standards .............................11
3.16 Clamp Open Control......................11,12
SECTION 4 INSTALLATION PROCEDURE .... 13
4.1 Truck Requirements..............................13
4.2 Attachment Installation .........................13
4.3 Hydraulic Connections.....................14,15
SECTION 5 SERVICE PROCEDURE............. 16
5.1 Attachment Removal ............................16
5.2 Cylinder Removal .................................16
5.3 Cylinder Installation ..............................16
SECTION 6 MAINTENANCE .......................... 17
6.1 Schedule...............................................17
6.2 Torque Specifications............................17

B45-015, REV. 9/21
- -
Date received:
SECTION 1 NAMEPLATE LOCATION
A
Notice
When you receive your attachment,
locate the Long Reach nameplate (upper
left corner on the body). Record the
information from the nameplate, along
with the date received, at the bottom of
this page. If the nameplate is missing, look
for the serial number stamped directly into
the metal at the nameplate location and
consult the factory for details.

B 45-015, REV. 9/21
SECTION 2 MODEL NUMBER DESCRIPTION
Each attachment is identified by a model number and a serial number located on the nameplate attached to the
unit prior to shipment. Long Reach model numbers are designed to describe how an attachment is equipped. The
guide below illustrates a sample of the information that is represented in a unit model number. Always include
model and serial number when ordering parts or requesting service information.
SDNA/SDNC Series Model Number:
SERIES
SDNA = Dual Side
Shifter III;
SDNC = Heavy Duty
Dual Side Shifter, with
Base Frame
CAPACITY
@ 24” load center
055 = 5,500 lb
065 = 6,500 lb
100 = 10,000 lb
150 = 15,000 lb
175 = 17,500 lb
OUT -TO-
OUT
083 = 83.0"
091 = 91.0"
098 = 98.0"
MODEL SPECIFIC
DESIGNATOR
MOUNTING
CLASS
A = ITA Class II
B = ITA Class III
C = ITA Class IV
310 = 31"Wide w/13.5"
side shifters
370 = 37"Wide w/8"
side shifters
410 = 41"Wide w/8"
side shifters
5 B 0 0 39 1 1S D C 0 5 1 0N
SJNC/ Series Model Number:
0 B 6 0 B5 1 RS J C 1 0 0 1N
SERIES
SJNC = Heavy Duty
Side Shifter, Jump
Size;
CAPACITY
@ 24” load center
055 = 5,500 lb
100 = 10,000 lb
155 = 15,500 lb
OVERALL
WIDTH
510 = 51.0"
600 = 60.0"
650 = 65.0"
720 = 72.0"
960 = 96.0"
MODEL SPECIFIC
DESIGNATOR
MOUNTING
CLASS
A = ITA Class II
B = ITA Class III
C = ITA Class IV
BR1 = Standard
Long Reach load
backrest drilling

B45-015, REV. 9/21
SLNA/SLNC/ Series Model Number:
SLJA/SLJC/ Series Model Number:
0 B 4 0 B1 1 RS L C 1 0 0 1N
0B80 B
41 R
S L C 1 0 0 1 J
Each attachment is identified by a model number and a serial number located on the nameplate attached to the
unit prior to shipment. Long Reach model numbers are designed to describe how an attachment is equipped. The
guide below illustrates a sample of the information that is represented in a unit model number. Always include
model and serial number when ordering parts or requesting service information.
SERIES
SLNA = Heavy Duty
Side Shifter II;
SLNC = Heavy Duty
Side Shift Carriage,
Low Roller Design;
CAPACITY
@ 24” load center
055 = 5,500 lb
100 = 10,000 lb
155 = 15,500 lb
175 = 17,500 lb
240 = 24,000 lb
OVERALL WIDTH
310 = 31.0"
320 = 32.0"
340 = 34.0"
360 = 36.0"
370 = 37.0"
380 = 38.0"
390 = 39.0"
402 = 40.2"
410 = 41.0"
420 = 42.0"
421 = 42.1"
430 = 43.0"
431 = 43.1"
450 = 45.0"
460 = 46.0"
480 = 48.0"
510 = 51.0
520 = 52.0"
720 = 72.0"
800 = 80.0"
MODEL SPECIFIC
DESIGNATOR
MOUNTING
CLASS
A = ITA Class II
B = ITA Class III
C = ITA Class IV
F = ITA Class V
G = ITA IV Class
Stretched
BR1 = Standard
Long Reach load
backrest drilling
NS1 = NISSAN model
JP50 OEM load
backrest drilling
TY1 = Drilling for
Toyota OEM backrest
YA1 = YALE Model
GBE085 OEM load
backrest drilling
SERIES
SLJA = Heavy Duty
Side Shifter, Jump;
SLJC = Heavy Duty
Side Shifter, Jump Size;
CAPACITY
@ 24” load center
055 = 5,500 lb
100 = 10,000 lb
155 = 15,500 lb
175 = 17,500 lb
OVERALL
WIDTH
600 = 60.0"
620 = 62.0"
650 = 65.0"
720 = 72.0"
760 = 76.0"
800 = 80.0"
840 = 84.0"
960 = 96.0"
1084 = 108.4"
1268 = 126.8"
MODEL SPECIFIC
DESIGNATOR
MOUNTING
CLASS
A = ITA Class II
B = ITA Class III
C = ITA Class IV
BR1 = Standard Long Reach
load backrest drilling
72048 = 72" OAW, jump sized
to fit a 48" wide carriage
84046 = 84" OAW, jump sized
to fit a 46" wide carriage
84048 = 84" OAW, jump sized
to fit a 48" wide carriage
96042 = 96" OAW, jump sized
to fit a 42" wide carriage
96048 = 96" OAW, jump sized
to fit a 48" wide carriage
10848 = 108" OAW, jump sized
to fit a 48" wide carriage
12686 = 126" OAW, jump sized
to fit a 86" wide carriage

B 45-015, REV. 9/21
Each attachment is identified by a model number and a serial number located on the nameplate attached to the
unit prior to shipment. Long Reach model numbers are designed to describe how an attachment is equipped. The
guide below illustrates a sample of the information that is represented in a unit model number. Always include
model and serial number when ordering parts or requesting service information.
SPNA/SPNC Series Model Number:
SERIES
SPNA = Pin-To-Pin
Sideshifter;
SPNC = Hook To
Pin Heavy Duty Side
Shifter;
CAPACITY
@ 24” load center
030 = 3000 lb
055 = 5,500 lb
060 = 6,000 lb
100 = 10,000 lb
155 = 15,500 lb
185 = 18,500 lb
300 = 30,000 lb
360 = 36,000 lb
OVERALL WIDTH
59 = 59.0"
74 = 74.0"
078 = 78.0"
300 = 30.0"
335 = 33.5"
420 = 42.0"
450 = 45.0"
480 = 48.0"
500 = 50.0"
540 = 54.0"
600 = 60.0"
620 = 62.0"
630 = 63.0"
720 = 72.0"
740 = 74.0"
750 = 75.0"
760 = 76.0"
780 = 78.0"
960 = 96.0"
MODEL SPECIFIC
DESIGNATOR
MOUNTING
CLASS
A = ITA Class II
B = ITA Class III
BU = ITA Class III;
30 deg upending
C = ITA Class IV
P = Pin Type Forks
(does not include
forks)
CA = Designed To Fit Truck
Model; Cat DP70D
HY = Designed To Fit Truck
Model; Hyster H155XL2
KOM = Designed To
Fit Truck Model;
Komatsu FG70T-5
NS = Designed To Fit Truck
Model; Nissan PY155
ROY = Designed To
Fit Truck Model;
Royal Pin Type
TA = Designed To Fit Truck
Model; Taylor THD360L
YA = Designed To Fit Truck
Model; Yale GDP155CAN
5P70 K
21 O
S P C 1 5 0 M N

B45-015, REV. 9/21
3.1 Safety Information
Safety is Everyone’s Responsibility
Whether you are new on the job or a seasoned veteran,
these safety tips may prevent injury to you, to others, or
to the materials you are handling. Always be alert, watch
out for others, and follow these suggestions:
Attachments handle material, not people.
Safety starts with common sense,
good judgement, properly maintained
equipment, careful operation, and properly
trained operators.
The safety instructions and warnings, as documented
in this manual and shipped with the machine, provide
the most reliable procedures for the safe operation and
maintenance of your Long Reach attachment. It’s your
responsibility to see that they are carried out.
3.2 Safety Regulations
Know your company’s safety rules. Some companies
have site-specific directions and procedures. The
methods outlined in your operator’s manual provide a
basis for safe operation of the machine. Because of
special conditions, your company’s material handling
procedures may be somewhat different from those
shown in this manual.
3.3 Safety Symbols
The following terms define the various precautions and
notices:
DANGER
Indicates a hazardous situation which, if
not avoided, will result in death or serious
injury. Carefully read the message that
follows to prevent serious injury or death.
WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious
injury. Carefully read the message that
follows to prevent serious injury or death.
CAUTION
Indicates a hazardous situation which,
if not avoided, could result in minor or
moderate injury, or equipment damage or
void the machine warranty. Carefully read
the message that follows to prevent minor
or moderate injury.
Notice
Describes information that is useful but
not safety related.
WARNING
Multiple hazards.
Ignoring safety warnings may cause
equipment damage, personal injury or
death.
All possible safety hazards cannot be
foreseen and included in this manual. The
operator must always be alert to possible
hazards that could endanger personnel or
damage the equipment.
3.4 Labeling
• Change capacity, operation, and maintenance
instruction plates, tags, or decals when a forklift
truck is equipped with an attachment. If the truck
is equipped with front-end attachments other than
factory installed attachments, truck must be marked
to identify the attachments and show the approximate
weight of the truck and attachment combination at
maximum elevation with load laterally centered.
3.5 Training
• Make sure all operators are trained in the fork and
attachment adaptation, operation, and use limitations.
Retrain an operator if a new attachment is added to
the forklift. Consult the operator’s manual for instruc-
tions on how to use the new equipment.
• Know the mechanical limitations of your forklift.
SECTION 3 SAFETY SUMMARY

B 45-015, REV. 9/21
• Modifications or additions that affect capacity or safe
operation must have prior written approval from the
forklift truck manufacturer. Capacity, operation, and
maintenance instruction plates, tags, or decals shall
be changed accordingly.
• Never use free rigging for a below-the-forks lift. It
could affect the capacity and safe operation of a lift
truck.
3.6 Personnel Safety
• When removing or installing dismountable attach-
ments always keep hands and feet free from
dangerous positions or pinch points. Never leave a
dismounted attachment in a dangerous position.
• Keep hands, feet, long hair and clothing away from
power-driven parts. Do not wear loose fitting clothing
or jewelry while performing maintenance and lubrica-
tion in these areas.
• Never jump on or off the machine.
• Never stand on top of material being raised, lowered,
or transported. (Figure 3-1)
Figure 3-1 Figure 3-2
Figure 3-3
• Never use the attachment or its load to support a
man-carrying device.
• Never allow anyone under a load or under the
carriage. (Figure 3-2)
• Never stand in front of or beside an attachment
that is being operated. Never allow another person
to approach an attachment that is being operated.
(Figure 3-3)
• Never leave an attachment or load in an elevated
position.
• Never reach through the mast of the truck. Keep all
parts of the body within the driver’s compartment.
• Always operate an attachment from the operator’s
seat, never while standing next to the lift truck.
• Do not allow riders on the truck at any time.
• Always use reverse when carrying a load that
impedes full vision. Watch for pedestrians when
transporting.
• Always use personal protective equipment (PPE)
appropriate to the situation.
3.7 Pre-start Checks
• Check your equipment before you operate it. If
anything looks wrong, unusual or different, report it
before using the attachment.
• Do not operate this machine if you know of malfunc-
tions, missing parts, and/or mis-adjustments. These
situations can cause or contribute to an accident or
damage to the machine. Stop the machine immedi-
ately if problems arise after starting.
• Check to make sure the attachment on your truck is
the same as on the truck capacity plate.
• Check for hydraulic leaks and cracked hoses or
fittings. Check the hydraulic oil level in the lift truck
hydraulic reservoir.
• All electrical cables and connectors must be in good
condition. Use caution in wet weather to avoid danger
from electrical shock.
• Always check the attachment for proper fit and
engagement of the truck carriage.
3.8 Operation Warnings
• You must be trained to operate this equipment prior
to operation. Be extremely careful if you do not
normally operate this machine. Reorient yourself to
the machine before starting, then proceed slowly.
• Always operate an attachment from the driver’s seat.
• Always lower the attachment if you need to leave
the lift truck. A lift truck supporting a load requires
your full attention.

B45-015, REV. 9/21
3.9 Hydraulic Hazards
DANGER
Injection hazard.
Infection and gangrene will result
when hydraulic oil penetrates the
skin. See a doctor immediately to
prevent loss of limb or death.
Use a piece of cardboard to check for
hydraulic leaks.
• Wear personal protective equipment, such as gloves
and safety glasses, whenever servicing or checking
a hydraulic system.
• Assume that all hydraulic hoses and components
are pressurized. Relieve all hydraulic pressure before
disconnecting any hydraulic line.
• Never try to stop or check for a hydraulic leak with
any part of your body; use a piece of cardboard to
check for hydraulic leaks.
3.10 Electrical Hazards
WARNING
Electrocution hazard.
Contact with energized equipment may
result in injury or death and will damage
equipment.
Remain at least 25 feet from high voltage
electrical wires.
• All electrical cables and connectors must be in
good condition (free of corrosion, damage, etc). Use
caution in wet weather to avoid danger from electrical
shock. Never attempt electrical testing or repair while
standing in water.
• Do not wear electrically conductive jewelry, clothing,
or other items while working on the electrical system.
3.11 Maintenance Warnings
Maintenance, lubrication and repair of this machine can
be dangerous unless performed properly. You must have
the necessary skills and information, proper tools and
equipment. Work in a method that is safe, correct, and
meets your company’s requirements.
• Do not attempt to make adjustments, or perform
maintenance or service unless you are authorized
and qualified to do so.
• Include attachments in a scheduled maintenance
and inspection program. Tailor inspection steps to
the attachment.
• Unless specified in service procedures, never attempt
maintenance or lubrication procedures while the
machine is moving or the engine is running.
• Always perform all maintenance and lubrication
procedures with the machine on level ground, parked
away from traffic lanes.
Notice
Local laws and regulations may require
that additional safety measures be taken.
• Never rely on the hydraulic system to support any
part of the machine during maintenance or lubrication.
Never stand under a component that is supported
only by the hydraulics. Make sure it is resting on its
mechanical stops or appropriate safety stands.
• Use caution when working around hot fluids. Always
allow lubricating and hydraulic oils to cool before
draining. Burns can be severe.
• Use extreme caution when using compressed air to
blow parts dry. The pressure should not exceed 30
psi (208 kPa) at the nozzle. Never use compressed
air on yourself. Air pressure penetrating your skin
can be fatal.
WARNING
Suffocation hazard.
Engine exhaust fumes can cause death.
Remove the exhaust fumes from the area
with an exhaust pipe extension, or use
ventilation fans and open shop doors to
provide adequate ventilation.

B 45-015, REV. 9/21
• Always carry cylindrically shaped loads in the vertical
position, not the horizontal.
• Always clamp loads with the contact pads, if appli-
cable, not the arm or arm base.
• Never rotate a load that is off center to the centerline
of rotation. Severe damage to the rotator could result.
• Always ensure that the load is the same width as the
pallet and neatly stacked when using a carton clamp.
3.13 Load Positioning
• Be accurate in load placement. It’s important to know
what the load will do when it’s released.
• Always carry loads as close to the floor as possible,
consistent with the surface being traversed. Scraping
or bumping the floor surface with the load or the
attachment can severely damage the attachment and
cause product damage. The mast should be tilted
back.
• Always keep the load positioned as close as possible
to the horizontal center of the lift truck.
• Always back down ramps or inclines. Driving forward
down a ramp or incline with a clamped load will
lessen the stability of the truck. (Figure 3-4)
Figure 3-4
• Do not cross dock boards or dock levelers with the
attachment or carriage fully lowered. Ramming the
front or rear of the attachment against a dock board
can cause severe damage.
• Limit lift truck movement to a minimum when high
stacking. Limit sideshift movement to a minimum
when high stacking.
• Always be observant when high stacking. Look for
poorly stacked loads, overhead obstacles, broken
cartons, or damaged products in the stack.
• Travel slowly around corners. Sound horn on blind
corners. Be careful of tail swing and overhead clear-
ances. Watch in all directions. Avoid sudden stops.
• Before disconnecting hydraulic lines, be sure to lower
all loads and relieve all hydraulic pressure. The load
could fall on you, or escaping hydraulic oil could
cause severe personal injury.
• Prevent personal injury or equipment damage by
using a lifting device with a lifting capacity greater
than twice the weight of any equipment to be lifted.
3.12 Load Handling
• Treat an unloaded forklift with an attachment as
partially loaded.
CAUTION
Equipment overload hazard.
Injury or equipment damage may result if
the capacity of the truck and attachment
combined are less than the attachment
capacity.
Consult truck nameplate for truck
capacity with an attachment installed.
• Never overload the attachment. Refer to the attach-
ment nameplate for the rated capacity of the
attachment. Refer to the truck nameplate for the
maximum net working capacity of the truck/attach-
ment combination. Never use a load to support or
move another object. Doing so can easily exceed the
holding capacity of the attachment.
• Always check loads to be handled. Correct loads that
are broken, unbalanced, loose, or too heavy.
• Never lift, lower, side shift, pivot, rotate, or tilt loads
while traveling. Repositioning loads while traveling
affects the stability of the truck and may impede
vision or clearances.
• Do not use an attachment to open or close boxcar
doors. Doing so can severely damage the attachment
and cause loss of warranty. Damage to clamp arms
may result in product damage.
• Do not carry loose items or unsupported loads on
top of a clamped load.
• Never use chains, cables, or other devices in conjunc-
tion with an attachment for load handling.
• Never clamp loads other than what the attachment
was designed to handle.

B45-015, REV. 9/21
3.14 Operator’s Controls
Some lift trucks are equipped with a single lever to
control both hoist and tilt functions, others have separate
levers for each function. Refer to your lift truck manual
for more information.
For clarity, the direction of arm movement is shown on
the control handle. To move the arms in the direction
shown, pull the handle towards the operator. To move
the arms in the opposite direction, the push the handle
away from the operator. (Figure 3-5)
Clamp Fork position
Push/pull Rotate Sideshift
Figure 3-5 Operator controls
Lifting speed is controlled by the speed of the engine
and the position of the control lever. Engine speed has
no effect on lowering speed.
Before going on the job, shift the truck control levers
one way and then the other to determine which direc-
tion the attachment moves when the levers are shifted.
Make sure the attachment moves smoothly throughout
its travel, without binding or pinching hoses.
CAUTION
Equipment damage hazard.
Injury or equipment damage may result
if the attachment does NOT operate
smoothly.
Do not take malfunctioning equipment on
the job. Check with your supervisor about
needed repairs.
3.15 Industry Standards
ANSI/ITSDF B56.1-2016 is the published sequence and
direction standard for lever- and hand-type controls.
Notice
The chart on the following page shows
industry standards. Your equipment
may be different. If you do not routinely
operate this equipment, refresher
training is recommended. You must
reacquaint yourself with this manual and
the equipment before starting, and then
proceed slowly.
Special controls such as automatic devices should be
identified, preferably according to the recommendations
in Figure 3-6.
When a function is controlled by a pair of push buttons,
they should operate in the same sense as the lever
controls. For example, pushing a button located to the
rear (relative to the operator’s position) should serve
the same function as moving a control lever to the rear.
3.16 Clamp Open Control
Effective October 7, 2010, safety standard ANSI/ITSDF
B56.1, Section 7.25.7 covers all lift trucks with a load
bearing clamp (paper roll clamp, carton clamp, etc.),
and requires the driver to make two distinct motions
before opening or releasing the clamp. For example,
you must press a switch and then move a lever to
unclamp the load. This requirement applies to new
and used attachments being mounted on trucks which
shipped from the factory after October 7, 2010, and is a
recommended feature to be installed on dealer orders
and existing applications.
WARNING
Load loss hazard.
Injury or equipment/load damage may
result if a fork positioner attachment is
used to clamp a load. The fork positioner
does not have enough clamping force to
safely hold a load.
Always support the load with the forks.
Do not use fork positioning attachments
as clamps.

B 45-015, REV. 9/21
Function Direction of motion
Load Operator's hand on control handle, facing the load*
Hoist
Up
Down
Rearward or up
Forward or down
Reach Retract
Extend
Rearward or up**
Forward or down
Tilt Rearward
Forward
Rearward or up**
Forward or down
Sideshift Right
Left
Rearward or up
Forward or down
Push-pull Rearward
Forward
Rearward or up**
Forward or down
Rotate, lateral Clockwise
Counterclockwise
Rearward or up
Forward or down
Rotate, longitude Rearward
Forward
Rearward or up
Forward or down
Load stabilizer Down
Up
Rearward or up
Forward or down
Swing Right
Left
Rearward or up
Forward or down
Slope Clockwise
Counterclockwise
Rearward or up
Forward or down
Fork position Together
Apart
Rearward or up
Forward or down
Tr i p Engage
Release
Rearward or up
Forward or down
Grip Engage
Release
Rearward or up
Forward or down
Truck stabilizer Raise
Lower
Rearward or up
Forward or down
Clamp Clamp
Release
Rearward or up
Forward or down
Figure 3-6 ANSI/ITSDF Sequence of location and direction of motion for lever- or hand-type controls
* For high lift order picker trucks and center control pallet trucks, predominant motion of the operator’s hand when actuating the control
handle while facing away from the load.
** The sense of rotation of the control handle is intended to be in the same direction as the desired motion of the mast or load.

B45-015, REV. 9/21
SECTION 4 INSTALLATION PROCEDURE
4.1 Truck Requirements
Long Reach attachments have been designed to
operate within specific limits. Operating pressures above
the recommended maximum may cause damage to the
attachment and may void the warranty. Operating pres-
sure specifications for your attachment can be found on
the attachment nameplate. (Section 1)
Hydraulic flow less than the recommended rates, or the use
of small I.D. hoses may reduce operating speed. Higher
flow can result in excessive heat buildup, erratic opera-
tion and damage to the truck/attachment hydraulic system.
Hydraulic flow specifications for your attachment can be
found on the attachment nameplate. (Section 1)
Notice
The dealer and/or the user must provide
and install the valving required to meet
the recommended hydraulic pressures
and flow, or must arrange installation of
the required valving at the truck factory.
The attachment model description, found
on your shipped invoice, will state the
following truck requirements: flow (gpm),
psi, and minimum truck carriage width.
1. The truck carriage must conform to the American
National Standard (ANSI) dimensions shown in ANSI/
ITSDF B56.11.4-2013.
2. Make sure the truck carriage is clean, conforms to
ANSI recommendations, and the notches are not
damaged.
3. The truck hydraulic system must supply to the attach-
ment hydraulic oil that meets the specifications
required to operate the attachment properly. Find
specifications for your attachment on the attachment
nameplate. (Section 1)
4.2 Attachment Installation
WARNING
Equipment overload hazard.
Overloading the truck may cause
equipment damage.
Consult truck nameplate to determine
the capacity of the truck and attachment
combination, as it may be less than the
capacity shown on the attachment alone.
1. Removethelowerbolt-onhooksand,ifapplicable,make
a note of any factory installed shims. Shims are used
to create clearance between the hook and carriage.
If the attachment is equipped with quick hooks, simply
depress the button on the back of the hooks, allowing
the slide plate to drop. Removal of the quick hooks is
NOT recommended. (Figure 4-1)
Button
Slide Plate
BodyPush button
to lower slide.
Raise slide
to secure
attachment
to truck.
Figure 4-1, Quick Hook
2. Center the truck behind the attachment and drive
toward the attachment with the mast tilted forward
approximately 4 degrees.
3. Line up the locking lug (under the hanger plate, if
applicable) with the appropriate notch on the truck’s
carriage. Check that the bronze sideshifting wear
strips are in the proper place, if applicable.Make sure
roller assembly is in place making contact with lower
carriage bar.

B 45-015, REV. 9/21
4. Slowly raise the truck carriage completely to engage
the top hooks with the truck carriage.Tilt carriage back
until the unit is against the carriage bottom fork bar (0
degrees).
7. Inspect for proper engagement of the locking lug in the
corresponding notch of the truck’s carriage. Inspect
any wear strips, if applicable, to insure they are prop-
erly aligned in the top hooks.
8. Weld on the optional supplemental locking lug that
is supplied with the attachment, (two pieces of 1/2" x
1/2" x 2.00" steel included with the attachment) with
either E-6011 or E-6013 welding rod, or equivalent,
on each side of the truck carriage. (Figure 4-2)
Locking lug in notch
YXE4C-307
1/2 x 1/2 x 2.00 steel
supplemental
locking lug (optional)
1/16" clearance
Figure 4-2, Optional Supplemental Locking Lug
9. Install the bolt-on lower hooks. Inspect clearance to
the carriage on lower hooks. Adjust the lower hooks
for a maximum clearance of 3/32" (see Figure 4-3).
Tighten the bolts to 50 ft-lbs.
Maximum
clearance
1/8"
Maximum
clearance
1/32"
Maximum
clearance
3/32"
(consult factory
if over)
Shim(s)
as required
Shim(s)
as required
Figure 4-3, Lower Hook Clearance
10. If quick hooks are installed, simply raise the slide plate
until the button clicks into place.
WARNING
Equipment failure hazard.
The attachment could fall off the truck if
the quick hook is not properly installed.
Slide plate must click into place. If the slide
plate does not click into place because
the truck carriage prevents the slide plate
from being raised up high enough, install
shims between the attachment and the
body of the quick hooks.
11. To ensure proper locking of the slide plate, use a
screwdriver to try to pry down the slide plate.If the slide
plate is not locked in place, inspect and correct any
cause that might restrict the slide plate from going up
enough to allow the button to become fully engaged.
12. Apply grease to bronze top hooks through fittings and
spread on entire slide area of mid plate.
13. Check all fittings, connections and bolts for any
interference.
4.3 Hydraulic Connections
1. Before connecting the truck hydraulic system to the
attachment, the system must be purged through the
filtration system. This will eliminate any contamina-
tion that might exist in the auxiliary hydraulic system
of the truck.
2. Purge the system by installing a jumper line
and operating each hydraulic function (clamp,
rotate and side shift, if equipped) in each direc-
tion for a minimum of 30 seconds. (Figure 4-4)
Hoses should meet or exceed SAE100 RI Type AT,
with maximum working pressure of 3,000 psi for all
attachment functions.

B45-015, REV. 9/21
To Truck
To Clamp
Figure 4-4, Jumper Line Setup
3. Install the hoses from the truck to the attachment.
For specific hydraulic schematics and installation
information, please see your serial number specific
installation, maintenance and service manual, avail-
able online in the Manuals and Publications tab at
www.alliedsystems.com.
4. Install the lines from the truck’s hydraulics to the
hydraulics of the attachment.
5. Inspect installation to ensure hoses are not kinked or
pinched between the truck carriage and attachment.
6. Operate the attachment continuously for several
minutes to determine that all hydraulic connections
are secure with no leaks.
7. With the mast in the vertical position, run the attach-
ment to the limit of all operations.After this procedure,
check that the truck’s hydraulic reservoir oil level is at
the recommended level.
8. Before placing the attachment in operation inspect all
hoses and fittings for leaks and routing clearance.Be
sure to include clearance of jumper hoses to the mast.
Check the valve and cylinder for leaks, and check
cotter pins at each end of the cylinder for security.
9. After completing the installation, operate the attach-
ment without a load for several cycles to remove any
air in the hydraulic system.Test the attachment with a
load to make sure the attachment operates correctly.
Notice
Equipment damage hazard.
Equipment damage, performance
reduction, personal injury and/or loss of
warranty could result if any alterations are
made to the original attachment.
Consult with factory before altering
original equipment.

B 45-015, REV. 9/21
SECTION 5 SERVICE PROCEDURE
5.1 Attachment Removal
1. Position the attachment arms to the width of the unit’s
body.
WARNING
Crush hazard.
Serious injury could result if residual
hydraulic pressure causes equipment to
drift during service procedures.
Cycle the hydraulic circuit as described
above to relieve all system pressure.
2. Disconnect the hydraulic connection for the attach-
ment positioning at the cylinders
3. Disconnect the side shift connections.
4. Slightly raise the truck carriage to allow the removal
of the bottom mounting hooks. If the attachment is
equipped with quick hooks, simply press the slide plate
releasebuttonand dropthe slideplatedown.(Figure5-1)
Button
Slide plate
BodyPush button
to lower slide.
Raise slide
to secure
attachment
to truck.
Figure 5-1, Quick hook
5. Position the attachment on the edge of a pallet.Lower
the attachment so that the lower carriage bar misses
the pallet when lowered.Tilt the mast forward to allow
the carriage to disengage from the upper mounting
hooks and back away.If lowering onto a floor, blocks of
wood can be place under the body of the attachment
to raise the rear.
6. To reinstall, follow the installation procedure in Section
4.2 of this manual.
Notice
Equipment damage hazard.
Equipment damage and loss of
performance could result if air is trapped
in the hydraulic system.
Activate the hydraulic functions several
times after hydraulic service has been
performed, to bleed trapped air out of the
system before returning attachment to
service.
5.2 Cylinder Removal
1. Disconnect the hydraulic connections.
2. Remove the cylinder rod end cotter pin and clevis pin.
WARNING
Crush hazard.
Serious injury could result if residual
hydraulic pressure causes equipment to
drift during service procedures.
Cycle the hydraulic circuit as described
above to relieve all system pressure.
3. Remove cotter pin and clevis pin at the base end of
the cylinder.
5.3 Cylinder Installation
1. Install the clevis pin and cotter pin into the base end
of the cylinder.
2. Attach the hydraulic connections to the cylinder.
3. Extend the cylinder until the rod end hole lines up with
the mounting hole.Install the clevis pin and cotter pin
into the rod end of the cylinder.
4. Turn on the truck’s power and activate the positioning
cylinders several times to bleed out trapped air.

B45-015, REV. 9/21
6.1 Schedule
Daily:
1. Visually inspect all hoses, fittings, cylinders, and
valves for signs of hydraulic leaks.
2. Visually inspect for external damage or cracks.
3. Check lower hooks for proper clearance. Maximum
clearance is 3/32 of an inch.
4. If the attachment is equipped with quick change hooks
check the slide plate latch for engagement.
5. Apply grease to bronze top hooks.
40 Hour Maintenance:
1. Inspect any forks that contact the ground. The fork
blade and shank must be throughly checked for wear,
especially near the heel. If heel thickness is reduced
to 90% of the original, replace the fork.
100 Hour Maintenance:
1. Complete the above daily checks.
2. Check all hoses and fittings for wear or damage.
Inspect for hydraulic leaks.
SECTION 6 MAINTENANCE
3. Check for loose or missing bolts.
200 Hour Maintenance:
1. Re-torque bronze hook bolts per chart.
6.2 Torque Specifications
The following torque values are to be used on all
fasteners unless otherwise specified.
Lubricated refers to fasteners in the “As Received”
condition, which is normally a light preservative oil
coating on unplated fasteners and no oil coating on
plated fasteners. No special steps are taken to add
further lubrication prior to assembly.
Grade 5
Grade 8
Socket Head Capscrew
Figure 6-1, Fastener Identification
GRADE 8 COARSE THREAD GRADE 5 COARSE THREAD SOCKET HEAD COARSE THREAD
Bolt Size Lubricated Torque Bolt Size Lubricated Torque Capscrew Size Lubricated Torque
1/4" 11 ft-lbs 1/4" 7.5 ft-lbs 1/4" 12.5 ft-lbs
5/16" 23 5/16" 16 5/16" 26
3/8" 40 3/8" 28 3/8" 46
7/16" 63 7/16" 45 7/16" 74
1/2" 96 1/2" 68 1/2" 115
9/16" 140 9/16" 98 9/16" 160
5/8" 195 5/8" 140 5/8" 215
3/4" 340 3/4" 240 3/4" 385
7/8" 550 7/8" 390 7/8" 615
1" 820 1" 580 1" 920
1-1/8" 1,160 1-1/8" 715 1-1/8" 1,305
1-1/4" 1,640 1-1/4" 1,010 1-1/4" 1,840
1-3/8" 2,150 1-3/8" 1,330 1-3/8" 2,415
1-1/2" 2,850 1-1/2" 1,760 1-1/2" 3,205
Figure 6-2, Torque Specification