Tightening Torques; Disassembly And Assembly Cautions; Troubleshooting - Chicago Pneumatic CP 0020 Prescriptions De Sécurité Et Instructions Pour L'opérateur

CP 0020
In the event of breakdown or worsening pump
performance, establish the cause and rectify the fault.
Ideally, repairs should be carried out in a workshop.

Tightening torques

A
B
C
WARNING
To avoid injury
before using or
servicing tool, read
and understand
separately provided
safety instructions.
Valve, 30-40 Nm
A.
Air inlet bushing, 120-140 Nm
B.
Nut, 275-300 Nm
C.
D. Screw, 25-30 Nm
Handle, 30-40 Nm
E.
9800 1056 90c | Original instructions
D
C
E
Safety and operating instructions
Disassembly and assembly
cautions
Before starting disassembly, remove oil plug and
♦
drain all oil out of oil reservoir.
Whenever pump is disassembled, clean out ball
♦
bearings and clean old grease from all other parts.
Using recommended grease, repack bearings, fill
governor chamber in bottom of governor housing
three quarters full and coat all parts between
lower end plate and impeller.
NOTICE Automotive water pump grease is
designed for use with hot water and is too hard
for use in pump operating in cold liquids.
If the shaft seals are replaced due to leakage, the
♦
impeller sleeve must to be replaced as well.
♦ When replacing the two shaft seals, it is important
that the soft face of the seals face toward the
impeller.
When assembling the motor check clearance
♦
between faces of rotor and end plate and use shim
or shims as required securing 0.002 in. – 0.003
in. (0.05 – 0.08 mm) clearance.
When assembling motor into motor housing, the
♦
upper end plate must protrude above the motor
housing between 0.001 in. and 0.003 in. (0.03
to 0.08 mm). I f not, add shims as required.
The governor body is fitted to the rotor by a
♦
left-hand thread.

Troubleshooting

Loss of power and motor failure may be caused by
conditions outside the Pump. Check for:
Low air pressure at the Pump. 90 psi (6.2 bar) air
♦
pressure is required at the Pump, with motor
running wide open.
Lowered compressor output.
♦
Excessive drain on supply line.
♦
♦ Use of hose or connections of insufficient size.
If the above conditions are found to be in order,
check in sequence the following:
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