S0708470K
Page 23
Steering and Brake Pump (Denison T67DB Series)
9. Line up the two cartridge kit pins (20) with holes in housing (22) and then install housing. Position the
housing according to punch marks made during step 2 of disassembly procedure. Attach housing to
body with four screws (23).
NOTE:
Torque screws (23) to: 189 - 216 Nm (140 - 160 ft lb).
10. If cartridge kit (39) is replaced with a new kit, line up pins (25) with holes in housing (22) and install kit
into housing.
If cartridge kit requires assembly, assemble in reverse order of disassembly. During assembly, note
the following precautions:
A. Make sure the rotation arrows on rotor (30) and cam ring (28) are in direction of pump rotation.
B. Be certain sharp edges of vanes (31) lead in direction of pump rotation.
C. Make sure O-ring (35) and back-up ring (36) are assembled in the correct position.
NOTE:
Cartridge kit (39) is assembled into housing (22) in reverse manner of cartridge kit (40).
Make sure rotation arrow of ring points in direction of rotation.
D. Apply a small amount of hydraulic oil to screws (24) and thread screws into cartridge kit.
11. Install sealing ring (34) into cover (37).
12. Install O-ring (33) over cartridge kit (39) against housing face.
13. Position cover (37) over cartridge kit (39) according to prick marks made during step 2 of
disassembly procedures. Install cover (37) and secure with screws (38).
NOTE:
Torque screws (23) to: 54 - 68 Nm (40 - 50 ft lb).
START-UP PROCEDURES
START-UP
1. Install the pump into the system. Make sure that drive shaft is aligned properly. All connections are
tight, and hydraulic oil source is open to pump inlet, if an overhead reservoir is used, purge air from
inlet line.
2. The pump should prime almost immediately with a minimum drive speed of 600 rpm. Intermittently
operate (jog) the pump until it primes. It may be necessary to loosen the outlet fitting temporarily to
purge trapped air. Failure of pump to prime in a short period of time indicates incorrect assembly or
restricted flow from reservoir.
NOTE:
With a minimum drive speed of 600 rpm, a pump should prime almost immediately if
provision is made to initially purge air from the system.
TEST
Use machine’s hydraulic system to test the pump.
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