Load Capacity and Reach
This machine has flip-charts in the operator’s station
that provide, at a glance, the capacity limits at various
positions of attachment tool extension and elevation. A
set of load zone charts is reproduced at the end of this
manual for reference.
A typical load chart is shown on the next page. The
scale on the left indicates height in feet above the
ground level. The scale on the bottom shows the dis-
tance in feet out from the front of the machine. The arc
lines noted by the numbers “1” through “5” correspond
with the position extension markers on the operator
side of the intermediate boom section on model 553.
Model 552 has arc lines noted by the numbers “1” and
“2” which correspond with the position extension
markers on the operator side of the inner boom section.
The following example illustrates proper use of the
load charts for the Telescopic Handler:
Example:
The operator, using a standard carriage attachment tool
wants to raise a 2000 lb load 20 feet high, and can only
get to within 15 feet of the load placement point. Can
it be done within the capacity of the machine?
Analysis:
See “Typical Load Zone Chart” p. 37.
By projecting up from the 15 foot mark on the hori-
zontal axis to intersect a line through the 20 foot mark
on the vertical axis shows the load can be placed in the
2000 lb zone.
WARNING
Excessive speed can be hazardous. ALWAYS
exercise caution and good judgement while
operating the machine.
Twice daily, increase the engine speed (fast
idle) and extend and retract the frame leveling
cylinder to the stroke limit. This removes any
trapped air in the circuit, which could cause
the machine to lean to one side or the other.
The machine shall not be used to lift or carry
personnel, or be fitted with any form of per-
sonnel work platform.
ALWAYS maintain a safe distance from elec-
tric power lines and avoid contact with any
electrically charged conductor or gas line. It is
not necessary to make direct contact with a
power line for power to ground through the
structure of the machine. Keep the boom at
least 10 ft. (3 m) from all power lines.
Accidental contact or rupture can result in
electrocution or an explosion. Contact the
North American One Call Referral System at
(888) 258-0808 for the local “Digger’s Hotline”
number or proper local authorities for utility
line locations BEFORE starting to dig!
Keep all body parts inside the operator’s sta-
tion while operating the machine. BE SURE of
clearance for the attachment tool when turn-
ing, working around buildings, etc.
PRINTED IN U.S.A.
33
908424/AP500
IMPORTANT:
DO NOT lower boom at high
engine RPM when attachment tool is at maximum
rearward tllt. Damage to slave cylinders may
result.
GENERAL LOAD HANDLING
NEVER attempt to work controls except from the
operator’s seat. NEVER jerk or use fast movements.
Avoid sudden stops, starts or changes in direction.
Operation of the hydraulic system depends on engine
speed and the distance the controls are moved. When
operating these controls it is important to develop a
technique called “feathering.” Feathering the control
means you start the desired motion by moving the con-
trol away from neutral a small amount. After move-
ment has started, the control can be eased to full power.
Use the same technique to stop the motion.
Turning corners too fast can tip the machine,
or cause a load to tip off the attachment.
Sudden slowing or stopping of the machine
may cause the load to drop off the attachment
tool.
Be certain you can control both speed and
direction before moving. Always place the
machine in neutral and set the parking brake
before raising or extending the boom. NEVER
drive the machine up to someone standing in
front of the load.
NEVER leave the operator’s station without
first lowering the attachment tool to the
ground. Set the parking brake, place controls
in neutral, shut off engine and remove the key.
AVOID parking the machine on a slope, but if
necessary, park across the slope and block
the tires.
Summary of Contents for Dynalift 552
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