Bulletin HY25-1890-M1/US
Owner’s Manual
10-Bolt Extended Shaft PTOs
Parker Hannifin Corporation
Chelsea Products Division
Olive Branch, MS 38654 USA
12
Installation Instructions
14. The tube assembly is lined up and inserted
into the Input Housing. As this is done, the
bolts for the bracket should be started into the
rear of the transmission (
Fig. 14
).
15. As soon as at least 1 bolt is started, the tube
assembly cannot fall. The unit can be aligned
and slipped together with the transmission
taking the weight (
Fig. 15
).
NOTe:
When attaching the tube to the input housing use
4 NEW cap screws supplied with the PTO.
16. Install the 4 Hex Head Cap Screws (378431-13,
3/8"-16 x 1.375") and flat washers 380076-07
to make the final attachment between the input
housing and the tube assembly. Torque the Cap
Screws to 30-35 lbs-ft [41-47 Nm] (
Fig. 16
).
17. The 3 longer bolts in the transmission should be
torqued as follows:
3000 Family - 66-81 lbs-ft [90-110 Nm]
4000 Family - 74-89 lbs-ft [100-120 Nm]
(
Fig. 17
).
18. To complete installation of the PTO, see SK
drawings on
for wiring and plumbing
installation.
19. See SK-493
for installation of XV, AB,
or AC Outputs.
20. When installing pumps use O-Ring supplied with
PTO between pump and PTO output. Torque
pump bolts to proper torque specifications. Refer
of this manual for proper pump bracket
support requirements.
NOTe:
Do not use a gasket with O-Ring.
As with all auxiliary power systems, there are
different concerns and needs with varying applications,
duty cycles, and driven equipment. Chelsea endeavors
to provide options that will ensure trouble free use of our
products and system solutions.
For customers that would like an extra level of protection
from pump seal leaks, there are double sealed pumps
available from Parker to satisfy your needs. Please verify
your requirements with your Parker/Chelsea PTO and
Pump experts.
Fig. 16
Fig. 14
Fig. 17
Fig. 15
PTO Installation (Continued)
WARNING:
Do not run PTO w/ wet spline output option if pump is not installed and connected to hydraulic
system. Failure to do so may damage PTO and/or Transmission. See
for output cover plate options.
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