Tronair 02-0544C0110, Operation & Service Manual, Page: 11 / 78

Models: 02-0544C0110 & 02A0544C0110
5 Ton (4.5 Metric Ton) - Single Stage Jack
04/2014 | Rev. 01 Page | 8
9.0 MAINTENANCE (continued)
9.5 JACK FUNCTION LOAD TEST
NOTE: If function load testing is required:
1. Take all necessary precautions to prevent injury.
2. Always jack against a load and never against the jack itself.
3. Do not exceed a test load equal to the jack rated capacity plus 10%.
9.6
PNEUMATIC PUMP
See Appendix II Haskel Air Pump Manufacturer Data for complete parts list and repair information.
10.0 TROUBLE SHOOTING
TROUBLE PROBABLE CAUSE ACTION
Fluid leakage at pump piston
or pump body Damaged backup ring, o-ring, piston or
pump body
Remove piston and pump body. Inspect for
damage. Replace defective part(s). Replace
removed o-ring and backup ring
External fluid leakage at
ram(s) Damaged o-ring, backup ring or inner
cylinder wall Remove ram(s) as a unit from cylinder. Inspect
parts. Replace o-ring and defective part(s)
Jack fails to lift rated load
Release valve not closed properly Fully tighten release valve
Low fluid level Fill to correct fluid level
Pressure relief valve improperly adjusted Adjust or replace release valve
Leakage at inlet or outlet check ball
Inspect valve body for wear or replace valve
body and check balls
Vent screw closed Open vent screw
Ram(s) will not support load
after manual or pneumatic
pump up
Leaking ram o-ring seals
Check for external leakage, if present replace
defective seal and back up ring
Leaking pressure check valve
Inspect valve body for wear or replace valve
body and check balls
Leaking pressure relief valve
Remove release valve, inspect ball and ball
seat in pump block. Replace effective part(s)
Ram(s) raise and fall with
each manual pump stroke
Release valve open Fully tighten release valve
Inlet check valve not seated or sticking Pump rapidly to dislodge or replace valve body
Pressure check valve not seated or sticking Pump rapidly to dislodge or replace valve body
Jack fails to lower
Ram locknut not loosened Raise jack ¼ inch and release locknut
Vent screw closed Open vent screw
O-Ring (pinched or rolled)
Replace o-ring and back-up ring, clean up
cylinder wall of debris
11.0 PROVISION OF SPARES
Recommended Spares to be kept on hand:
K-1049
Kit, Ram Seal Replacement
K-1685 Kit, Repair Fluid Seal (Air Option only)
K-1686 Kit, Repair Air Seal (Air Option only)
K-3441 Kit, Pump Seal Replacement
Spare parts may be obtained from the manufacturer:
TRONAIR , Inc. Telephone: (419) 866-6301 or 800-426-6301
1 Air Cargo Pkwy East Fax: (419) 867-0634
Swanton, Ohio 43558 USA E-mail: sales@tronair.com
Website: www.tronair.com
12.0 PARTS LIST
When ordering Replacement Parts/Kits, please specify Model & Serial Number of your product.
13.0 IN-SERVICE SUPPORT
Contact Tronair for technical services and information.