Motor/Pump Piston Seal Replacement (60065C & 80060C Air Compressors)
To replace the piston seals on the CAT-60065C (4 seals total) and CAT-80060C (8 seals total) air compressors, obtain Piston Seal 4-Pack Kit P/N: 91457-4p (click here to purchase).
Perform the following steps:
1. Turn off power and unplug the air compressor.
2. Drain the air tank by opening the manual ball drain valve.
3. Remove the 16 motor-head securing bolts (8 bolts from each side of Quad Motor/Pump). Remove and set aside the two (2) motor
head assemblies onto support chassis.
Note: braided air hoses may remain connected.
4. Gently grasp and remove the piston/housing from each piston rod by pulling straight out. All four (4) piston plates and seals should be visible - see photos below.
5. Using a Heat Gun ONLY, heat up piston rod bolt for 3-5 minutes. Using an allen-head wrench turn bolt counterclockwise to remove.
Note: bolt must be very hot in order to loosen/turn.
Caution: use gloves when removing piston rod bolt.
6. Disassemble and remove worn piston seal from piston plate; replace with new piston seal.
7. Reinstall piston rod bolt and turn clockwise. Firmly tighten to secure piston plate.
8. Repeat steps 6 & 7 for remaining piston plates/seals.
Note: Quad motor/piston pump may need to be removed from air compressor, via 4 securing bolts at base, and placed onto
a work bench for easier piston/housing reassembly.
9. Perform steps 1-4 in reverse order.
10. Close manual ball drain valve.
11. Plug in the power cord and turn on the air compressor.
12. Verify 60065C/80060C air compressor is operating normally.
- Confirm time to fill 60065C tank from empty to full takes approximately 3 min 18 secs.
- Confirm time to fill 80060C tank from empty to full takes approximately 3 min 56 secs.
California Air Tools Store - Brand New & Blemished Items
Links to Authorized Resellers
80 Gal 6.0 Hp 20 CFM
Ideal Job-Site Air Compressor
17-20 cfm 280V 3-Phase
Complete Out-of-Box Solution
CAT-10TL Tankless 1 Hp
12 CFM 98% Dry Air, 20 Gal, 6 Hp, ISO 8573 compliant
CAT-33000 Spray Gun, 1.3 mm nozzle, 600 cc Fluid Cup
Ultra Quiet, Oil-Free, 8 Gal Aluminum, 1 Hp, 3 CFM, Long-Life Motor
6.0 Hp, 20 Gal Ultra Quiet Oil-Free, 15 CFM Compressor
Print 