Specifications
I & M BULLETIN
HPTO8TD-100
HYDRAULIC POWER TAKE-OFF
9/11/2007
9
of
9
Clutch Sub-assembly
1. Press qty. of 3, dowel pins (Item 3)
into endplate (Item 8). Apply Loctite
609 to dowel pins before installing.
Dowel pins should be 1-1/4” above
surface.
2. Align endplate (Item 8) with shaft and
key. Apply Loctite 609 to shaft. Use a
fixture and ½-13 threaded rod
(threaded in shaft) to draw endplate
onto shaft. Note: end plate will stop
against bearing (Item 2).
3. Remove the threaded rod from shaft
end. ATTENTION: Using flashlight
insure that there are no metal burrs
or chips inside threaded center
hole of shaft after removing
threaded rod.
4. Install hex o-ring plug (Item 28) into
shaft end and tighten until snug.
5. Install qty. of 3, die springs (Item 21)
into endplate (Item 8).
6. Install friction plate (Item 1) into end
plate. Note: friction plate will loosely
pilot onto endplate step. Note: friction
surfaces must be free of oil and
contamination.
7. Lightly coat o-ring (Item 17) with
Mobilfluid 424 or similar oil and install
into I.D. of groove piston (Item 9).
8. Lightly coat o-ring (Item 25) with
Mobilfluid 424 or similar oil and install
into O.D. groove in shaft (Item 1).
9. Lightly coat o-ring (Item 18) with
Mobilfluid 424 or similar oil and install
into O.D. groove in backplate (Item
10).
10. Install backplate (Item 10) over shaft
end and into piston cavity.
ATTENTION: do not pinch o-ring in
O.D. groove of fixed end plate and
o-ring on shaft while installing.
11. Install piston (Item 9) into dowel pins
of endplate (Item 8). ATTENTION: do
not pinch o-ring in I.D. groove of
piston while installing over shaft.
12. Using spanner wrench install clamp
nut (Item 16) onto end of shaft.
Tighten locknut until backplate (Item
10) stops moving.
13. Torque lockscrew on clamp nut (Item
16) to 70 lb-in.
14. Pack other end of endcover with
Pennzlube EM grease only to 20%
capacity.
15. Install seal (Item 15) into endcover
(Item 6). NOTE: orientations of seal
lip per Figure 2.
16. Install o-ring (Item 31) into piston
(Item 32) and insert into endcover.
17. Insert die spring (Item 30) into piston
(Item 32) and endcover.
18. Install qty. of 4, hexhead capscrews
(Item 37) p/n HHD08-06C36-XX and
Manifold Assembly (Item 38) to the
top of the endcover. Torque bolts to
47 lb-ft.
19. Follow Installation Instruction (at the
beginning of this manual) for mounting
the HPTO8TD to the engine.