Specifications

Operational Checkout
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TRANSMISSION SHIFT
MODULATION CHECK
Engine running.
T7825BH –UN–21AUG92 T7773BN –UN–05AUG92
Run engine at approximately 1600 rpm.
Move transmission control lever to 1st gear forward. Shift several times from forward
to reverse and reverse to forward. Repeat check in 2nd gear.
LOOK: Machine must slow down and change direction without excessive delay.
OK: Go to next check
NOT OK: See Machine
Shifts Too Fast in
Troubleshooting chapter.
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,HYDRAULIC SYSTEM CHECKS
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HYDRAULIC SYSTEM
WARM-UP PROCEDURE
Engine running.
Run engine at fast idle.
Hold a hydraulic function over relief to heat oil.
Periodically cycle all hydraulic functions to distribute warm oil.
Repeat procedure until oil is at operating temperature.
FEEL: Hydraulic reservoir must be uncomfortable to hold your hand against
(approximately 50
° C [120 ° F]).
OK: Go to next check.
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BOOM DOWN SOLENOID
VALVE CHECK
Engine running.
T7773BO1 –UN–05AUG92
Raise boom to full height. Roll bucket back.
Stop engine.
Hold boom down switch down.
Move control lever to bucket dump position.
Move control lever to boom lower position.
LOOK: Bucket must dump and boom must lower.
OK: Go to next check
NOT OK: Check fuse.
IF OK: Go to your
authorized dealer.
95–18
PN=226