Tronair 02-7802C0111 Operation & Service Manual Download

Page: 11 / 82

Model: 02-7802C0111 & 02A7802C0111 (with Air Pump)

12 Ton (10.88 Metric Ton)

Single Stage Jack

04/2008 | Rev. 01

Page | 8

7.4.2

Jack Instructions

(continued)

3. Close pump release valve by turning clockwise.

NOTE: Turning the pump release valve counter-clockwise lowers the jack. Turning the pump release valve
clockwise stops the jacks descent, and allows it to be raised.

4. Operate the pump using the handle, or by opening the air valve (if equipped with an air pump).
5. Lower ram locknuts as aircraft is raised.

WARNING!



The ram locknuts are user operated safety devices. Failure to utilize these locknuts may result in
personal injury or death.



Do not place hands on top of jack near ram locknuts while lowering jack. Pinch points exist between
top of jack and threads on ram.



Always wear safety glasses.

To Lower Aircraft:

1.  Lower all jacks simultaneously.
2.  If ram locking nut(s) is tight, raise jack slightly to release nut(s).
3.  Loosen pump release valve slightly to slowly lower aircraft. Raise locking nut(s) as jack ram(s) lower.

NOTE: When using jack during washing operations, completely cover top of jack near ram seal.

8.0

TRAINING

Training of operating personnel is the responsibility of the employer. This jack must be used in accordance with aircraft
manufacturer’s instructions.

9.0

MAINTENANCE

9.1

GENERAL



All maintenance and/or repair work should be done using good workmanship practices and proper tools.



The work area should be clean and free of dirt.



When O-rings and backup rings are removed, every effort should be made to avoid the contact of tools with the critical
surfaces of parts. Surface deformities could cause degradation of seals and failure.



It is good practice to replace both O-rings and backup rings once removed. Cut and damaged O-rings normally result in
fluid leakage.



If cylinder bore is found to be rusty, it may be honed to a maximum diameter of 3.257 in (82.73 mm) and a surface finish
of 16 micro inches. If pitting in the bore cannot be removed by this process, the jack cylinder must be replaced before the
jack can be returned to service.



At this time, flush old hydraulic fluid and dirt from overall system and replenish with new, clean hydraulic fluid.



When refilling the hydraulic system, replenish with MIL-PRF-5606 fluid and fill to 1 ½ in (3.8 cm) below the vent.



Jacks shall be maintained and repaired in accordance with the manufacturers instructions. Such maintenance and repair
shall be carried out by qualified persons.



No modifications shall be carried out which adversely affect the compliance of the jack with draft standard 2006/42/EC.

9.2

MAINTENANCE SCHEDULE

Check Fluid Level ................................................................ Each Use
Lubricate Casters ................................................................ 3 Months
Cleaning .............................................................................. Annually Or As Needed
Capacity Test (105%-110% of

jack’s rated capacity) .......... Annually

NOTE: Wipe with soft cloth only, do no pressure wash or spray water directly at ram seal.

9.2.1

Storage/Low Usage

If jack is unused for 90 days, raise ram to full hydraulic extension, spray ram with DoALL RPM, LPS or equivalent water
repellant, BUNA N compatible lubricant.

9.0 Maintenance continued on follow page.