Reelmaster 5010 Series Hydraulic System (Rev. C)Page 4 -- 57
Procedure for Steering Cylinder Internal Leakage
Test:
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine under load for
approximately ten (10) minutes.
2. Parkmachineonalevelsurfacewiththecuttingunits
loweredandPTOswitchoff.Makesureengineisoff.Ap-
ply the parking brake.
3. Read Precautions For Hydraulic Testing.
CAUTION
Beforeopening hydraulicsystem,operate allhy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
RelievingHydraulicSystemPressureintheGen-
eral Information section of this chapter.
4. Turnthesteeringwheelforarightturn(clockwise)so
the steering cylinder rod is fully extended.
5. Thoroughlycleantheareaaroundthehydraulichose
at the rod end of the steering cylinder (Fig. 55).
6. Place a drain pan under the steering cylinder. Re-
movehydraulichosefromthefittingontherodendofthe
steering cylinder. Plug the end of the hose.
7. Remove all hydraulic oil from drain pan. Make sure
that empty drain pan remains under the open fitting of
the steering cylinder.
8. With the engine off, continue turning the steering
wheelfor a right turn (clockwise) with the steering cylin-
derfullyextended.Observetheopenfittingonthesteer-
ingcylinderasthewheelisturned.Ifoilcomesoutofthe
fitting while turning the steering wheel to the right, the
steering cylinder has internal leakage and must be re-
paired or replaced (see Steering Cylinder and Steering
Cylinder Service in the Service and Repairs section of
this chapter). Check drain pan for any evidence of oil
that would indicate cylinder leakage.
9. Removeplugfromthehydraulichose.Connecthose
to the steering cylinder fitting.
10.Ifasteering problemexistsandthes teering cylinder
tested acceptably, the steering control valve requires
service (see Steering Control Valve and Steering Con-
trol Valve Service in the Service and Repairs section of
this chapter).
11.Check oil level in hydraulic reservoir and adjust if
needed.
1. Steering cylinder 2. Rod end fitting
Figure 55
1
2
Hydraulic
System
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