Parker CHELSEA 267 Series - P.t.o.;Combo Valve Installation Sketch 277;278 Series Old Style Valve

Bulletin HY25-1380-M1/US
Owner’s Manual
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
19
Installation Sketch
Allison World Transmissions
P.T.O. Combo Valve Installation Sketch, 277/278 Series (SK-427 Rev B) (Old Style)
Caution: When installing nylon tubing avoid sharp angles, exhaust and manifold systems.
379252
Butt Connector
Drill 1" Dia. Hole in Firewall
379265
Grommet
Slice Grommet Insert in Hole in Firewall
Red Wire
379504 Valve
Connector and
Wire Assembly
Black Wire
Accepts #10 Screw
Electrical Ground of Cab or Frame
Run Wires Through
Grommet in Firewall
379306
Spade Terminal
Blue Wire
379502
Pressure Switch
379547X
Pressure
Switch
380009
Female
Connector
To P.T.O.
Port Air
Control
Valve
379900 Fuse Holder
Ass’y w/10 Amp Fuse
379257
Splice Connector
Positive Terminal of
Ignition or Battery
379664 Red L.E.D.
12 Volt Indicator Light
Assembly
379486
90° Fitting
Install in Transmission
High Pressure Port
MD: Left or Right Side
HD: Left Side Only
Hose Per Chart
(See Chart on Page 12)
Hose Per Chart
(See Chart on Page 12)
“R” Lubrication Option
Allison P.T.O. Shown
379042
Male Connector
Warning: Connect directly to air supply. Do not use tubing between air supply and pressure protection valve.
378416
Hex Nipple
378414
Pressure Protection Valve
Opens at 40 PSI
379044-7
1/4" Nylon Tubing
Air Supply
To Dump Pump
Shifter “Lower Port”
379042
Male Connector
379547
Pressure Switch
380009
Female Connector
379044-7
Nylon Tubing
379664 Red L.E.D.
12 volt Indicator Light
Assembly
Cab
379042
Male Connector
To Dump Pump
Shifter “Raise Port”
Installation Kits
328388-85X “S” Shifter
328388-86X “T” Shifter
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