Zinko ZAP-100 Series, Operating Instructions & Parts List

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ZINKO HYDRAULIC JACK
PO Box 4903, Ontario, CA 91761
Toll Free: 1-800-579-8088
http:// www.zinko.com
Phone: (909) 230-4100
Fax: (909) 230-4138
If the above procedures do not correct the problem, contact your nearest ZINKO service facility. When submitting any jack or
equipment to be repaired, be sure to state the nature of the problem and indicate whether an estimate of the repair cost is needed.
PROBLEM CAUSE SOLUTION
Pump Reciprocates
But No Fluid Delivery
(cylinder will not extend).
Low Fluid Delivery
(cylinder extends slowly).
1. Low fluid level.
2. Pump not primed.
3. Fluid intake filter contaminated.
1. Inadequate air supply.
a) Check air input supply.
b) Contamination, check air side
of pump (plugged air inlet screen)
2. Hydraulic failure.
a) Check thew fluid inlet filter for
contamination.
b) Air in hydraulic system.
1. Add fluid as instructed in Preventive
Maintenance section.
2. Prime pump as instructed in Operation
section.
3. Remove reservoir and clean intake filter
and reinstall.
1.a) Should be 20 CFM (.57 M3/min.)
minimum.
b) Clean and reassemble.
2.a) Remove reservoir and clean intake
filter and reinstall.
b) Bleed the system as described in the
Preventive Maintenance section.
Pump Will Not Build To
Maximum Pressure
(no visible leakage).
1. Check the air supply.
2. Pressure regulator improperly
adjusted (if so equipped).
1. 100 psi (7 bar) is required to obtain
maximum pressure.
2. Adjust according to instructions in
Operation section.
Pump Builds Pressure
But Will Not Hold
System Pressure.
1. Check hydraulic connections and
other system components for leakage,
including 3-way/4-way valve. 1. Refit or repair as needed.
Pump Will Continue To Run
Slowly Even After Desired
Pressure Is Reached.
1. Output pressure equal or higher
than relief valve setting.
2. Defective 3-way/4-way valve or
other components leaking. 1. Normal operation.
2. Repair or replace.
1. Air lubricator is set too rich (if so
equipped).
Excess Oil Spray From Muffler.
1. Set at one drop per minute.
Troubleshooting
Zinko Hydraulic Jack
Models: ZAP Series