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Parker Hannifin Corporation
Parflex Division
Ravenna, Ohio
Hydraulic &
Pneumatic
Hose & Fit.
PTFE
Hose &
Fittings
Thermoplastic
Tubing
Coiled Air Hose,
Fittings
& Accessories
Truck (Fleet)
Products
Tooling &
Equipment
Hose
Accessories
Technical &
Design
Information
Approvals &
Guides
Alphanumeric
Index
DollyCoil
The Parker DollyCoil is used between double trailers on converter
dollies. No need to install springs or hangers as DollyCoil will
retract to its original shape time and time again – even after long
periods of extended use. Standard working lengths are 6 feet.
Parker DollyCoil assemblies fully comply with D.O.T. require-
ments covering coiled nylon brake tubing as stated in Chapter III
– Federal Highway Administration, Department of Transportation,
Subchapter B – Motor Carrier Safety Regulations (Docket No. MC-
41; Notice No. 73-9), Part 393 – Parts and Accessories Necessary
for Safe Operation.
DollyCoil™, Fifth Wheel Slider Coil
Technical Data
Construction:
A heat and light stabilized single wall
1/4" O.D. extruded nylon tubing conforming to SAE
specification J844 type A.
Temperature Range:
-40°F to +200°F (-40°C to +93°C)
Maximum Working Pressure:
150 PSI, meets D.O.T.
FMVSS 106 standard.
How to Order:
DollyCoil kits are supplied complete –
Parker pre-assembled
,
with everything needed, including spring guards and male pipe
end NTA fittings,
ready to install
. Special pipe thread sealant is
factory applied. No cutting or assembly necessary. Just attach the
gladhand to either end. They are available in kits or as separate
lines. A kit consists of both a red and blue tube assembly.
Fifth Wheel Slider Coil
• Clutter-free hook-up and maintenance-free performance of
adjustable length pneumatic tubing for fifth wheel sliding action.
• Returns to its original shape time after time, even after long
periods of extended use.
• Self-adjusts from 10" to fully extended 54" working length.
• Universal, ready for immediate installation.
No Maintenance:
Slider coil will stay on the job at peak perfor-
mance through years of trouble-free life.
Self-Adjusting:
Coil set is strong and permanent. Even after
prolonged use in fully extended position, coils will retract to shorter
length without sagging. Eliminates hazards of chafing and wear.
Note:
Fitting assembly required.
Kit
Coil
Number
Tube
O. D.
Valve
Tail
Brass Male Ends
(NPT)
Working
Length
Range
ft.
Number
of Coils Application Color
Valve
90° End
Gladhand
180° End
751634
-8
8
1/2
1/2
6
12
Convert, Dollies Blue, Red
Part
Number
Fittings
Pigtail
Length
in.
Max.
Extended
Length
in.
Retract-
ed
Length
in.
811537
(2)68NTA-4-4
2
54
10