Chief Manufacturing Pit Boss 638699 - Manual (Page 14)

PIT BOSS
Users Manual
12
Machine Maintenance
Check and Inspect
These components should be checked monthly and anytime
a problem is suspected.
CAUTION:
To avoid personal injury when
performing any maintenance
function, always wear safety
glasses and safety shoes.
Tower Chains
The tower chains with the Chief Shop-Hopper Towers are
high quality, high strength chains/hooks. If replacement is
required, purchase only the original Chief product from an
authorized Chief Automotive representative.
CAUTION:
• DO NOT heat chain or hook
while repairing vehicle – 600F
(316C) of heat on chain will
weaken it.
• DO NOT tip load chain hook.
Tip loading chain hook will
stress hook beyond its
designed capability and could
cause hook to fail.
• DO NOT pull with twisted chain
links. Pulling with twisted chain
links will stress chain links
beyond their designed
capability and could cause
chain to fail.
Tower chains must be inspected for wear, nicks, gouges,
stretched and bent links. If found, replace chain.
Tower chain hooks must be inspected for twist and stretched
openings. If found, replace chain.
Loading Ramps
Inspect loading ramps making sure loading ramp slots fully
engage the pinning lugs at rear of machine each time
mainframe is raised or lowered.
Power and Control Hoses
Inspect power and control cords for worn hoses or other
damage. If found, replace hose(s).
Cleaning and Lubricating
These components should be cleaned and lubricated as
specified for trouble free operation and extended service.
When lubricating use the following:
Oil – Use 30 weight motor oil for all components requiring
lubricating oil.
Grease – Use a SUS750 lithium type grease such as
lubricate #630-2 for all components requiring grease
Tower Heads
Grease tower heads annually
1. Remove tower chain from tower head
2. Remove tower head from tower pipe
3. Clean dirt from tower head pipe and where tower head
pipe rubs on inside of tower pipe.
4. Apply grease to tower head pipe
5. Reinstall tower head and tower chain
Collars
Clean and lubricate collars monthly.
1. Use compressed air to blow out dirt or dust that collects
between collar ears and rollers.
CAUTION:
Wear safety glasses while using
compressed air to blow out dirt and
dust.
2. Place a few drops of oil on the roller pin between roller
and collar ears (each side). Then turn roller a few times.
Roller must turn freely
Eliminating Air in Hydraulic System
If hydraulic system is opened to replace a system
component, it is necessary to bleed air from system prior to
using it.
Bleeding Air in System at Tower Cylinder
1. Connect the hydraulic line to the tower cylinder.
2. Remove the tower head and chain
3. Fully extend tower cylinder by depressing and holding
“UP” pedal on the foot pump until tower gauge shows
2000 psi of pressure on system.