77-2973-R3.0 (7/2017)
13 / 20
EN
www.carlisleft.com
MAINTENANCE
INSPECTION
OPERATION
Daily
Check for general air leakage and correct motor operation.
6 Month Test
Perform a pump stall test to ensure correct operation.
Perform a stall test on the pump assembly. If air is escaping through exhaust, check air motor
piston seal and QEV piston, replace as required.
12 to 36 Months
(Typically 10 million pump
cycles, dependant on air
quality)
Replace air piston seal.
Replace motor rod cartridge assembly.
Replace poppet assemblies.
Order a 0115-010216 Seal kit.
Inspect and replace if required:
Main valve assembly parts
Order a 0115-010226 Valve repair kit.
TROUBLESHOOTING
SYMPTOM
POSSIBLE CAUSE
REMEDY
Motor will not run
No air supply.
Check air and fluid supply ball valves and supply hoses.
Air piston seal worn.
Replace piston seal.
Poppet assemblies are not working.
Switch/interchange poppet assemblies to isolate the faulty
poppet, and clean or replace.
Main valve assembly is not working.
Check the main valve assembly, and clean or replace.
QEV's are not working.
Check for constant exhaust air when pump is not in a stalled
condition. Check the QEV pistons, and clean or replace.
Pump runs but has
excessive pulsation
Worn piston seal.
Replace piston seal.
Worn/failed motor rod seals.
Replace motor rod cartridge assembly.
Damaged QEV.
Inspect, clean and replace as required.
Damaged poppet assembly.
Inspect, clean and replace as required.
Air exhaust restricted
Inspect, clean and replace as required.
6.598in
167.60mm
5.236in
133mm
6.885in
174.87mm
Air Inlet
3/8"
3x
.335in 8.50mm
4.252in 108mm
Hole Circle