Gear Pump (P1) And (P2) Flow Test - Toro Reelmaster 5210 Service Manual

Gear Pump (P1) and (P2) Flow Test

(Using Tester with Pressure and Flow Capabilities)
TESTER
INTERNAL
CASE
DRAIN
P5
R8
Over a period of time, the gears and wear plates in the
gear pump can wear. A worn pump will by-pass oil and
make the pump less efficient. Eventually, enough oil can
by-pass to cause the reels to stall in heavy cutting condi-
tions. Continued operation with a worn, inefficient pump
can generate excessive heat and cause damage to
seals and other components in the hydraulic system.
Hydraulic System (Rev. C)
TO STEERING CONTROL VALVE AND CHARGE CIRCUIT
P1 P2 P3 P4
EXTERNAL CASE DRAIN
100 MESH
SUCTION
STRAINER
R3
R4
R5
FROM STEERING CONTROL VALVE
R9
G1
OR1
P1
FC1
EP1
R1
OR3
MR1
MSV1
CV
T
MSV2
OR4
MR2
R2
EP2
FC2
P2
OR2
MOW
G2
CONTROL
MANIFOLD
FROM MOW CONTROL MANIFOLD
TO LIFT CONTROL MANIFOLD
G5
A
FORWARD
TRACTION
WHEEL
MOTORS
B
G6
M1
BKLP1
BKLP2
M2
Figure 39
Procedure for Gear Pump (P1) and (P2) Flow Test
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine under load for
approximately ten (10) minutes.
2. Park machine on a level surface with the cutting units
lowered and PTO switch off. Make sure engine is off. Ap-
ply the parking brake.
3. Read Precautions For Hydraulic Testing in this sec-
tion.
Page 4 - - 42
GEAR PUMP (P1)
FLOW TEST SHOWN
A
A
M7 RH
LH M6
B
B
REAR MOW CIRCUIT
C.U. 2 C.U. 3
R11 R11
M2 M3
FRONT MOW CIRCUIT
C.U. 4 C.U. 1 C.U. 5
R11 R11 R11
M1
M4 M5
Reelmaster 5010 Series