Cub Cadet P Series - Manual (Page 19)

14 P Series
SectIon 3. trouBleSHootInG
WarnInG
do not attempt any servicing or ad-
justments with the engine running.
use extreme caution while inspecting
the drive belt assembly and all vehicle
linkage!
Follow all safety procedures outlined in
the vehicle owner’s manual!
In many cases, problems with the P Series Pump
are not related to a defective pump but are caused
by slipping drive belts, partially engaged bypass
valves, and loose or damaged control linkages. Be
sure to perform all operational checks and adjust-
ments outlined in Section 3 before assuming the
pump is malfunctioning. Table 2 below provides
a troubleshooting checklist to help determine the
cause of operational problems.
table 2. Pump troubleshooting checklist
Possible cause corrective action
VeHIcle doeS not drIVe/tracK StraIGHt
Vehicle tires improperly inflated Refer to vehicle manufacturer suggested pressure
Control linkage bent, loose or out of adjustment Repair, adjust or replace vehicle linkage
Bypass loose Tighten pump bypass per External Maintenance
step 9, page 17
Inlet Leak Check all external lines and connections to pump
inlet
unIt IS noISy
Excessive input speed Adjust input speed above 1800 rpm and below
3600 rpm
Oil level low or contaminated oil Fill reservoir to proper level or change oil
Excessive loading Reduce vehicle load
Air trapped in hydraulic system Purge hydraulic system per Purging Procedures
on page 18
Bypass loose Tighten pump bypass per External Maintenance
step 9, page 17
Inlet leak, line or filter partially blocked or Check all external lines and connections
and filter
damaged to pump inlet