Hydraulic leaking at the reciprocator fittings.
All of the
fittings
and 10) going into the upper and lower cylin-
der caps are self-sealing and have replaceable o-rings.
See the Parts Drawing. If you experience any leaking at
these fittings, tighten them. If the leaking persists, remove
the fitting and replace the worn o-ring.
Check the tightness of the packing nut weekly.
Always
follow the
Pressure Relief Procedure,
page 2, before
adjusting it. The packing nut should be tight enough to
stop leakage, but no tighter. Overtightening will compress
and damage the packings and result in pump leaking.
Carefully monitor the fluid supply.
If the pump empties
the supply container, air is sucked into the pump, causing
it to run too fast and to be damaged. If the pump runs too
fast, shut it off immediately. Fill the supply container and
prime the pump and hose to remove all air, or flush the
pump and hose with a compatible solvent and leave it
filled with an oil-base solvent to protect pump parts from
corrosion.
Never leave water-based fluid or air in the pump
when it is not in use Flush the pump and fill it with
mineral spirits or other oil-based solvent to prevent
pump corrosion or fluid hardening in it.
WARNING
To reduce the risk of serious bodily injury, including
fluid injection, injury from moving parts, and splashing
in the eyes or on the skin, always follow the
Pressure
Relief Procedure
on page 2 whenever you shut off
the pump, check, service, clean or repair any part of
the system.
Stop pump immediately if it is running too fast; check
fluid supply. If empty, refill and
the pump; elimi-
nate all air from system. Or flush the pump and store with
mineral spirits in it.
Relieve pressure. Disconnect fluid line. If pump starts
when hydraulic power is restored, the hydraulic line,
valves, filters, etc are clogged.
Always stop the pump at the bottom of its stroke and
keep the packing nut
full with TSL.
I CAUSE
I SOLUTION
operates, but output low on both
Restricted lines or inadequate hydraulic
Clear lines; increase hydraulic supply.
Insufficient hydraulic pressure; closed or
Open; clean.
clogged valves, etc.
I
Exhausted fluid supply.
I Refill and
or flush’.
Clogged fluid line, valves, etc.
I
Packing nut too tight.
I Loosen.
Loose packing nut or worn packings.
Tighten; replace.
operates, but output low on down
Held open or worn intake valve.
I
Clear; service.
operates, but low on up stroke
Held open or worn piston or packings.
Clear; service.
Erratic pump operation
Exhausted fluid supply.
Refill and
or
Held open or worn intake valve or piston
Clear; service.
packings.
Pump fails to operate
Excessive hydraulic fluid supply volume.
Lower.
Air entrained in fluid.
Purge all air; change fluid.
Restricted lines or inadequate hydraulic
Clear; increase.
Insufficient hydraulic pressure: closed or
Open; clean.
clogged valves, etc.
Exhausted fluid supply.
Refill and
or flush’.
Clogged fluid line, valves, etc.
Damaged hydraulic reciprocator.
Service; see manual 307-654.
Dried fluid seizure of displacement
6
307-623
Summary of Contents for Viscount I 3000
Page 1: ...Parts...
