Parker 221 Series, Owner'S Manual, Page: 34 / 56

Bulletin HY25-1135-M1/US
Installation Sketches
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
30
Owner’s Manual
6 and 8-Bolt PTOs
GENERAL
W
ARNING
:
Connect directly to air supply
. Do not use tubing betw
een air supply and pressure protection v
alv
e.
C
A
UTION
:
When installing n
ylon tubing a
void shar
p angles
, e
xhaust and manif
old systems
.
Im
POR
TANT
:
When this installation is used on v
ehicles with automatic tr
ansmissions the
, PT
O dr
iv
e gear m
ust be stopped bef
ore shifting.
N
O
TE
:
Air control v
alue m
ust be fitted inside a w
ater
proof housing when instlled outside the dr
iv
er’
s cab
.
Air Shift Installation Kits:
328388-65X
328388-72X 328388-79X
(SK-297 Re
v J)
378416 He
x.
Nipple
Air Supply
379042 Male Connector
379042 Male Connector
379042 Male Connector
To Dump Pump Shifter Lo
w
er P
or
t
To Dump Pump Shifter Raise P
or
t
379044-6 1/4" Nylon
Tubing
379044-6
Nylon T
ubing
379904 Push Connector
Connect to Indicator Switch on Air Shift Co
ver Ass’y
379640 Booted Pin Connector
Batter
y or
Ignition
379000 Fuse Holder Ass’y
w/10 AMP
Fuse
Blac
k
Wire
379252 Butt Connector
379664 Red L.E.D
. 12
V
Indicator Light Assemb
ly
Red Wire
Cab
PTO
IN
TIP
EX
LOW
OFF
Exhaust P
or
t Ma
y
Be Plumbed to Exhaust Outside of Cab
NO
TE:
Connect Plastic
Tubing to the
Push Connect (Air Shift Co
ver Ass’y)
378414 Pressure Protection
Valv
e
Opens at 70 PSI
Shift Option S, T or U
Elec/Air Shift
221/290/442/447/489/
660/680 Series