Lull 1044C-54 Series II Service Manual - Manual (Page 119)

Supply, Pressure, and Return Hydraulics
31200079 5-37
Installation
Hydraulic Pump
(Ref. Fig. 5-22 and Fig. 5-23) The following procedure is for the installation
of the hydraulic pump.
Step 1 thru Step 5 refer to Fig. 5-23.
1. If the pump support brackets were removed,
a. Install lower pump support bracket on park brake cylinder mount
with two (2) capscrews (Item 26), flatwashers (Item 15),
lockwashers (Item 14), and nuts (Item 13).
b. Install upper pump support bracket on lower pump support bracket
with three (3) capscrews (Item 24), flatwashers (Item 23),
lockwashers (Item 17), and nuts (Item 16).
2. Insert assembled hydraulic pump straight into the transmission making
sure the pump is supported so it cannot twist and cause damage.
Install the pump on the transmission with the two (2) capscrews
(Item 3) and lockwashers (Item 4).
3. Secure upper pump support bracket to pump with two (2) each
flatwashers (Item 21), lockwashers (Item 20), and capscrews
(Item 19).
4. Connect hydraulic suction hose (Item 12) to pump by installing two (2)
flange halves (Item 9) and four (4) lockwashers (Item 10) and
capscrews (Item 11).
5. Connect two (2) hydraulic hoses (Item 1) on connectors (Item 2) on
side of pump.
Step 6 thru Step 16 refer to Fig. 5-23.
6. Install hydraulic hose (Item 3) from Pump 1 test port to reducer adapter
(Item 4).
7. Install hydraulic hose (Item 1) from test port to branch tee (Item 17).
8. Install hydraulic hose (Item 2) from accumulator to run tee (Item 17).
9. Install hydraulic hose (Item 16) from rear axle stabilizer valve to run tee
(Item 5).
10. Install hydraulic hose (Item 7) from steer motor to hydraulic pump.
11. Install hydraulic hose (Item 8) from steer motor to elbow (Item 6).
12. Install hydraulic hose (Item 9) from accumulator to elbow (Item 13).
13. Install hydraulic hose (Item 10) from steer motor to run tee (Item 12) on
side of pump.
14. Install hydraulic hose (Item 11) from test port to run tee (Item 12).
15. Install hydraulic hose (Item 14) from rear axle stabilizer valve to
connector (Item 15).
16. Start the engine and check for hydraulic leaks. Correct as necessary.