wsm RTV-X1120D Workshop Manual page 256

RTV-X900, RTV-X1120D, WSM
Checking High Pressure Relief Valve Pressure (Dynamic
Brake)
CAUTION
• If it is necessary to run engine in an enclosed area, use a
gas tight exhaust pipe extension to remove the fumes.
• Always try to work in a well-ventilated area.
• When checking, park the machine on flat ground, and apply
the parking brake.
• Work by two people when you measure pressure.
• Note that the allen wrench does not come off firmly
because the plug is not loose hard. Otherwise, the plug
might be damaged, and the plug not be loosened.
NOTE
• The hex. socket plug is securely tightened. Therefore, it is
very important to use a proper-sized allen wrench and fit it
securely onto the plug. Do not give a shock but put your
weight on the plug slowly, paying attention not to damage
its hex. socket section. If the allen wrench is fitted on the
plug at a slant or an improper-sized allen wrench is used to
loose the plug, the hex. socket section will be damaged and
you won't be able to loose the plug.
1. Remove the cargo bed.
2. Remove the hex. socket head plug from P2 port (2). (P2 is for
dynamic brake.)
3. Install the HST adaptor and high pressure gauge to P2 port (2).
4. Check to see that parking brake is applied.
5. Remove the neutral rod (HST control rod) (3) from the HST
control lever (4).
6. Remove the unload linkage (1).
7. Set the 4WD lever to 2WD position.
8. Start the engine.
9. Shift the range gear shift lever in R position.
10. Depress the speed control pedal when measure pressure.
(Engine speed is set by using the tachometer.)
11. Slowly push reverse "A" the HST control lever by hand and
measure the check and high pressure relief valve pressure.
12. If the measurement is not within the operating pressure, replace
the check and high pressure relief valve assembly with new
one. (See page 2-S55.)
[RTV-X900]
High pressure relief
Operating pressure
valve
[RTV-X1120D]
High pressure relief
Operating pressure
valve
IMPORTANT
• Measure quickly so that the relief valve may not be in
operation more than 10 seconds.
(1) Unload Cable
(2) P2 Port (for Dynamic Brake)
(3) Neutral Rod
(4) HST Control Lever
2-S9
TRANSMISSION
15.0 to 17.0 MPa
2
153 to 173 kgf/cm
2180 to 2460 psi
20.0 to 22.0 MPa
2
204 to 224 kgf/cm
2900 to 3190 psi
A: Dynamic Brake
(To be continued)
KiSC issued 01, 2014 A