Shandong Nuoman Engineering Machinery Co.,Ltd
Business Room, No. 7, Zhongshan West Road, Gulou Street Office, Yanzhou Dist., Jining, Shandong, CN
TEL/Fax:+8618266821667 Whatsapp/Wechat:+8618266821667
Chapter XII Troubleshooting
Section I General
To ensure excellent performance of Rhinoceros excavator, all components and parts are of high quality. Machine’s
performance and service life are determined not only by manufacturing quality and assembling quality, but also
maintenance quality.
The marketing representative and service engineer shall remind the user that preventive maintenance is the easiest
and most economical one among various ways of maintenance.
There are daily inspection and long-, medium- and short-term maintenance according to maintenance frequency.
Section II Troubleshooting of mechanism system
The loose fasteners make noise.
Noisy structural components
Adjust the clearance to less
bucket and end face of bucket rod
Bucket teeth have dropped
elasticity of bucket tooth pin
Change the bucket tooth pin
Unmatched bucket tooth pin and
The crawler has tangled up
The driving wheel moves fast in
The guide wheel shall move
slowly in front on rugged road
Section III Troubleshooting of hydraulic system
Low oil level of hydraulic oil tank that the
Change the filter and clean the
Engine coupling is damaged (such as plastic
Change or repair the main pump
Adjust to regular pressure. If it fails
to increase the pressure of servo
The servo system pressure is low or zero
overflow valve, disassemble to wash;
if the spring is fatigue, add a washer
Adjust to regular pressure. If it fails
The safety valve is set at low pressure or
to increase the pressure, disassemble
and wash. If the spring is fatigued,
ass a washer or change the spring.
Oil suction pipe of main pump explodes or