HYDRAULIC
TM 5-3805-262-20
CHAPTER 11
SYSTEM MAINTENANCE
CHAPTER OVERVIEW
This chapter contains the information you’ll need to maintain the:
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Bucket Tilt Cylinder Assemblies
Lines and Fittings
Lift Cylinder Assemblies
Bucket Clam Cylinder Assemblies
Hydraulic Reservoir
H y d r a u l i c F i l t er
It gives you information on how to repair or replace the components that
are within the scope of organizational maintenance.
Para
Bucket Tilt Cylinder Assemblies
Maintenance . . . . . . . . . . . . . . . . . . . 11-1
Inspection . . . . . . . . . . . . . . . . . . . . 11-1a
Replacement . . . . . . . . . . . . . . . . . . . 11-1b
Return-to-Dig Control
Maintenance . . . . . . . . . . . . . . . . . . . 11-2
Lines and Fittings Maintenance . . . 11-3
Hydraulic Pump to Control
Valve Assembly . . . . . . . . . . . . . . 11-3a
Hydraulic Pump to Reservoir . . . 11-3b
Control Valve Assembly to
Loader Bucket Assembly . . . . . . 11-3c
Control Valve Assembly to
Bucket Tilt Cylinder
Assemblies . . . . . . . . . . . . . . . . . . 11-3d
Control Valve Assembly to
Lift Cylinder Assemblies . . . . 11-3e
Para
Loader Bucket Assembly . . . . . . . . 11-3f
Lift Cylinder Assemblies
Maintenance . . . . . . . . . . . . . . . . . . . 11-4
Inspection . . . . . . . . . . . . . . . . . . . . 11-4a
Replacement . . . . . . . . . . . . . . . . . . . 11-4b
Bucket Clam Cylinder Assemblies
Maintenance . . . . . . . . . . . . . . . . . . . 11-5
Inspection . . . . . . . . . . . . . . . . . . . . 11-5a
Replacement . . . . . . . . . . . . . . . . . . . 11-5b
Hydraulic Reservoir Maintenance . . 11-6
Inspection . . . . . . . . . . . . . . . . . . . . 11-6a
Oil Level Check and Adding
Oil . . . . . . . . . . . . . . . . . . . . . . . . . 11-6b
Draining and Refilling . . . . . . . . 11-6c
Hydraulic Filter Maintenance . . . . . 11-7
Servicing . . . . . . . . . . . . . . . . . . . . . 11-7a
Filter Assembly . . . . . . . . . . . . . . . 11-7b
NOTE
I n f o l l o w i n g p a r a g r a p h s , r e s o u r c e s r e q u i r e d a r e n o t l i s t e d u n l e s s t h ey
a p p l y t o t h e p r o c e d u r e . P e r s o n n e l r e q u i r e d a r e l i s t e d o n l y i f t h e t a sk
requires more than one. If PERSONNEL REQUIRED is not listed it means one
person can do the task, The normal standard equipment condition to start
a maintenance task is engine off, loader parked on level surface, bucket
lowered to surface, and parking brakes applied. EQUIPMENT CONDITION is
n o t l i s t e d u n l e s s s o m e o t h e r c o n d i t i o n i s r e q u i r e d b e s i d e s t h o s e
indicated above.
11-1
