RHINO 95HD, Operator'S Manual

Page: 31 / 42

F3788-7-04 Maintenance Section 5-3
CAUTION: To avoid possible injury, observe
the following safety rules when servicing
backhoe.
•
Do not oil, grease or adjust backhoe while it is
in motion.
•
Do not change any backhoe relief valve
settings. Relief valve settings are factory set for
best backhoe performance and safety.
•
Escaping fluid under pressure can have
sufficient force to penetrate the skin and cause
serious injury. Be sure to relieve all pressure
before disconnecting lines. Be sure all
connections are tight and that lines, pipes and
hoses are not damaged before applying
pressure to the system.
•
Fluid escaping from a very small hole can be
almost invisible. Use a piece of cardboard or
wood - not your hands - to search for suspected
leaks.
•
See a doctor at once if injured by escaping fluid.
Serious infection or reaction can develop if
proper medical treatment is not administered
immediately.
•
Protect your eyes - wear safety glasses. Guard
against injury when driving connecting pins or
performing any repair in which particles can
chip from work piece or striking tool.
BEGINNING OF SEASON
Remove all protective covering. Remove excessive
grease from cylinder rods if unit has been in long term
storage.
Check hydraulic hoses for deterioration and replace if
necessary. Caution hydraulic hoses may be under
pressure. Make sure pressure has been relieved before
removing hoses.
Lubricate all grease fittings and oil handle linkage.
Clean and inspect all safety and operation decals.
Replace missing or damaged decals.
Replace oil filter.
Fill hydraulic fluid to proper level.
Tighten all loose bolts, nuts and set screws (See torque
chart page 5-10).
Sharpen or replace worn bucket teeth.
Operate backhoe slowly for a short time before placing
unit under full load.
Fully cycle backhoe through all movements several times
to purge air from the system.
HYDRAULIC HOSES
WARNING: Escaping hydraulic fluid under
pressure can penetrate skin causing serious
injury.
•
DO NOT use your hand to check for leaks. Use
a piece of cardboard or paper to search for
leaks.
•
Stop engine and relieve pressure before
connecting or disconnecting lines.
•
Tighten all connections before starting engine or
pressurizing lines.
•
Oil leaks on the suction side will draw air into
the system, causing oil in reservoir to appear
foamy.
•
When tightening connections always use two
wrenches.
IMPORTANT: Do not over tighten fittings. Make them just
tight enough to eliminate leaks.
NOTE: Apply sealant only to all tapered threads unless
coupled with swivel adapters. When using teflon tape,
wrap tape clockwise (as viewed from end) and wrap tape
only twice. Keep sealant away from first two threads of
tapered end to prevent contamination of hydraulic fluid.
Do not use sealant on o-ring or flare adapter threads.
Hoses on backhoe are very severely worked and will fail in
time. Examine them regularly and replace any that show
signs of failure. Pay careful attention to routing of hoses
so they can move freely, without kinking and cannot be
pinched or cut by any part of backhoe.
AUXILIARY PTO PUMP HYDRAULIC SYSTEM
Maintain reservoir fluid level at 2 inchs below tank top
when bucket is extended to full reach, bucket rolled back
for loading and resting on the ground, and stabilizers fully
raised. If reservoir is over filled, fluid may be forced out of
breather cap.
Fill reservoir with 10W or 20W hydraulic oil with SAE
J183-M2C33F classification. Dextron 2 ATF fluid and
10W engine oil with API “SD” classification are also
acceptable.
Change oil and filter every 200 hours or more often if
necessary.
MAINTENANCE
MAINTENANCE
© 2004 Alamo Group Inc.