MAC TOOLS BK229 Operating instructions & parts manual - page 4
MAINTENANCE
1. Inspect hoses and connections daily. Replace damaged
components immediately with Mac Tools Authorized
Replacement Parts only.
2. Tighten connections as needed. Use pipe thread seal-
ing compound when servicing connections.
NOTE: DO NOT OVER TIGHTEN CONNECTIONS.
3. Use only good quality hydraulic fluid. We recommend
Mobile DTE 13M or equivalent.
Important: Use only a good grade hydraulic oil. Avoid
mixing different types of fluid and NEVER use brake
fluid, turbine oil, transmission fluid, motor oil or glycerin.
Improper fluid can cause premature failure of the pump
and the potential for sudden and immediated loss of
load.
Adding Oil
1. Disconnect hydraulic hose from application, remove air
source from pump.
2. With reservoir horizontal, remove the vent / oil filler plug.
3. Use a small funnel to fill reservoir to within 1/4 inch (5
mm) of the opening. Reinstall the vent/ oil filler plug.
Changing oil
1. For best results, change fluid once a year.
2. Repeat # 2 above, then pour used fluid into a sealable
container.
3. Dispose of fluid in accordance with local regulations.
4. Fill with a good quality hydraulic jack oil as recommended
above. Reinstall vent/ oil filler plug.
Lubrication
(When no In-Line Oiler is used)
1. When used daily, pour a teaspoon of good quality air
tool oil into the air source inlet of pump. Connect
hydraulic hose to application, connect air source to
pump and operate pump a few seconds to evenly
distribute fluid.
2. Use a light machine oil to lubricate pivot points, hinges
etc.
Storage
When not in use or during storage:
a. Disconnect pump from air source, depressurize and
disconnect hydraulic hoses from application.
b. Wipe clean, thoroughly.
c. Shelter the pump with protective cover.
d. Store in clean, dry environment. Avoid temperature
extremes.
NOTE: Never operate pump while disconnected from
application. If operated in this condition, the hose and
connections become pressurized. This increases the
burst hazard. Damage may occur to pump and its
components.
TROUBLESHOOTING
Symptom
Possible Causes
Corrective Action
Application will not extend, move or
respond to pressurized fluid
Application responds to pressurized
fluid, but system does not maintain
pressure
Application will not fully extend
(cylinder or spreader)
• Overload condition
• Fluid level low
• Fluid level low
• Overload condition
• Hydraulic unit malfunction
• Remedy overload condition
• Remedy overload condition
• Contact
Service Center
• Secure load by other means. Open
release valve, depressurize pump and
hose, remove application, then ensure
proper fluid level
• Ensure proper fluid level
Poor performance
Application will not return fluid to
pump (i.e. cylinder will not retract)
• Malfunctioning coupler,
damaged application
• Reservoir overfilled
• Secure load by other means. Open
release valve, depressurize pump and
hose, remove coupler and/or application,
then renew or replace
• Secure load by other means. Open
release valve, depressurize pump and
hose, remove application, then drain fluid
to proper level
4
BK229-M0