Component Breakdown: Auxiliary Pump - Cub Cadet Domestic Series 5000 Service Manual

10. COMPONENT BREAKDOWN: AUXILIARY
PUMP
NOTE: The auxiliary pump is to be replaced as a
unit if it fails. Disassembling it will VOID the
warranty. The pump has been disassembled
here to illustrate how it works.
NOTE: Individual pump components will not be
available through Cub Cadet.
10.1. The gear must be removed from the pump in
order to remove the pump from the transmission.
See Figure 10.1.
Auxiliary pump drive gear
Nut
Lock tab
O-ring seal
Figure 10.1
• The gear is a taper-fit to the pump shaft, and it is
keyed to the shaft.
• The lock tab, key, and nut are included with the
pump.
• The nut and shaft have a non-standard metric
thread. They will not be commonly available.
• An O-ring seal and Ultra-black sealant are used
to seal the pump to the front of the transmission.
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
Auxiliary pump
Domestic Series 5000 Hydraulics
10.2. The back cover can be removed from the pump
by removing the four socket head cap screws.
See Figure 10.2.
Splined shaft
Figure 10.2
10.3. Removing the rear cover reveals an O-ring seal,
the splined shaft that transmits power to the tan-
dem pump (when fitted), and four more socket
head cap screws.
10.4. The second set of socket head cap screws holds
the two housing ends to the body of the pump.
See Figure 10.4.
Housing end: back
Housing end:
mounting
Figure 10.4
10.5. Both ends of the pump have O-ring type seals
where they meet the pump body.
10.6. The body contains a simple gear pump.
25
Pump with back
cover removed
Pump body