Allied Systems H6H, Service Manual

Page: 104 / 133

Section 4
4 - 25
Figure 4-8 Visual Inspection - 2
ITEM INSPECTION REQUIREMENTS CORRECTIVE ACTION
Direction Control
Manifold Check that all passages and cartridge
valves are free of contaminants. Clean or replace cartridge valves. Clean all
hydraulic passages.
Logic Control
Manifold Check that all passages and cartridge
valves are free of contaminants. Clean or replace cartridge valves. Clean all
hydraulic passages.
Check torque on solenoid coils. Do not
over-tighten. Check that solenoid spool moves freely. Replace
cartridge if stiction is present. Torque for solenoid
cartridge is 20 ft-lbs. Torque for coil retaining nut
is 5 ft-lbs.
FREESPOOL
Shifter Check oil level in winch is not over full. This
is an indication that the
FREESPOOL
hose
or piston seals are leaking.
Tighten or replace
FREESPOOL
shifter hose.
Replace piston seals.
FREESPOOL Dental
Clutch
Check for broken or worn teeth. Replace dental clutch if teeth are broken or
severely worn.
Intermediate Shaft Check for deep scratches or scoring on
bearing surfaces at each end of shaft. Dress surface or replace shaft if severely worn.
Check for broken or severely worn splines. Replace if splines are broken or severely worn.
Intermediate Gears Inspect both gears for broken or severely
worn teeth. Pay particular attention to
leading edges of straight-cut gear teeth. Replace gears if teeth are broken or severely worn.
Drum Shaft Check for deep scratches or scoring on
bearing surfaces. Dress surface or replace shaft if severely worn.
Check O-ring groove and seal surface. Dress groove or replace shaft if severely worn.
Check for crossthread or damaged threads. Dress threads with thread chaser.
Drum Gear Check for broken or severely worn gear
teeth. Pay particular attention to leading
edges of straight-cut gear teeth. Replace gear if teeth are broken or severely worn.
Drum Inspect quad-ring groove for burrs, scoring
and rust. Replace drum or rebuild drum groove if a new quad-
ring will not seat properly.
Drum Adapter Carefully inspect double seal contact
surface for deep scratches, burrs and rust. Replace if damaged.
Winch Frame Check area around drum and drum adapter
for damage if cable has slipped between
cable guard and winch frame. Consult the factory.