Relief Valve (PRV1) and (PRV2) Pressure Test
ROTATION
DIRECTION
TO STEERING CONTROL VALVE AND CHARGE CIRCUIT
TO LIFT CONTROL MANIFOLD
MOTOR
INLET
MOTOR
OUTLET
GEAR
PUMP
BYPASS
VALVE
CASE DRAIN
CROSSTRAX
MANIFOLD
PISTON
(TRACTION)
PUMP
FROM STEERING CONTROL VALVE
TESTER
RELIEF VALVE (PRV1)
TEST SHOWN
DECK
CONTROL
MANIFOLD
FROM LIFT CONTROL MANIFOLD
Figure 45
The relief valve (PRV1) and (PRV2) pressure test
should be performed to make sure that the cutting deck
circuit relief pressures are correct.
Procedure for Relief Valve (PRV1) and (PRV2) Pres-
sure Test
1.
Make sure hydraulic oil is at normal operating tem-
NOTE: Thefrontcuttingdeckcircuitisprotectedbypro-
portional relief valve (PRV2) in the deck control man-
ifold. The rear cutting deck circuit is protected by
proportional relief valve (PRV1) (see Hydraulic Flow
Diagrams in this chapter).
perature by operating the machine under load for
approximately ten (10) minutes.
2.
Park machine on a level surface with the cutting
decks lowered and PTO switch off. Make sure engine is
off and mow speed limiter is in the mow position. Apply
the parking brake.
Hydraulic System
Page 4 -- 44
Groundsmaster 4300--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 4300 D |
| Download File |
|
| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)