Traction (Piston) Pump (P1) Flow Test (Using Tester With Flow Meter And Pressure - Toro ProCore 648 Service Manual

Traction (Piston) Pump (P1) Flow Test (Using Tester With Flow Meter and Pressure

Gauge)
G1
P
P1
P2
Procedure for Traction (Piston) Pump (P1) Flow
Test:
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine for approximately 10
minutes.
2. Park machine on a level surface with the coring head
fully raised. Make sure engine is off and parking brake
is disengaged. Secure coring head with service latch.
Hydraulic System
SVR
R1
R2
PV
CHG G2 T
FORWARD
ORF1
SVL
SVQ
CONTROL
MANIFOLD
TESTER
'B' PORT
(BOTTOM)
'P' PORT
'A' PORT
(TOP)
Figure 18
3. Read Precautions For Hydraulic Testing in this sec-
tion.
4. Remove pump control assembly from traction pump
(see Hydraulic (Traction/Charge) Pump Removal in the
Service and Repairs section of this chapter). Position
pump control assembly away from pump.
5. Make sure that hydraulic pump drive belt is adjusted
properly (see Operator's Manual).
Rev. C
Page 4 - - 22
LIFT
CYLINDER
CYL
FRONT
WHEEL
M1
'P' PORT
'P' PORT
M2 M3
Working Pressure
Low Pressure (Charge)
Return or Suction
Flow Direction
ProCore 648