
MAINTENANCE SCHEDULE:
ACTION REQUIRED
DAILY
50 HRS
250 HRS
500 HRS
ANNUAL
1.
Replace high pressure nozzle/jet
As
required YES
YES
YES
2
Check Water Filters – Clean or Replace if
damaged
YES
YES
YES
YES
YES
3
Inspect for leaks and repair all HP Accessories
like gun, hose, swivel, hose reel swivel, nozzle YES
YES
YES
YES
YES
4
Inspect all electrical cabling for damage or
wear – repair by qualified electrician
YES
YES
YES
YES
YES
5
Check High Pressure Switch & Flow Switch
and replace if faulty
YES
YES
YES
YES
6
Check Oil level in Pump (sight glass half full)
YES
YES
YES
YES
YES
7
CHANGE pump oil – SAE 15W40
YES
YES
YES
YES
8
Check engine oil level – SAE 15W40
YES
YES
YES
YES
YES
9
Check Oil level in Gearbox (sight glass half
full) and top up with SAE 80W90 Gearbox oil
YES
YES
YES
YES
YES
10
Service transmission, change oil – SAE 80W90
YES
YES
YES
11
Strip and Refurbish pump:
- Replace Plunger Rod Oil Seals (3/pump)
- Replace Brass Valves (6/pump)
- Replace various seals (3/pump)
- Replace Ceramic Piston Plungers if
cracked or worn (3/pump)
Only if
required
12
Check By-Pass valve function test - re-kit or
replace if required
YES
YES
YES
13
Function test all Safety Shutdowns & By-Pass
timed shut-down
YES
YES
YES
14
Check engine sub-frame vibe mounts
YES
YES
YES
15
CONTROL PANEL – Have an Authorised
Electrician Fully Function Test - Repair or
Replace all Electrical Components.
As required or annually
TRAILERS
16
Re-tighten all nuts & bolts on spring
suspension, tow-bar hitch, mechanical brakes.
Check tension on mechanical brake cable.
YES
YES
YES
YES
17
Check Tyre Pressure – inflate if necessary
Daily Check
MAINTENANCE TIPS:
USE THE FOLLOWING GUIDE WHEN CONSIDERING MAINTENANCE:
Always test your machine using a new high pressure nozzle - correctly sized for set-up pressure
and flow.
Before you start pulling pumps apart, do obvious checks first:
•
Worn /blocked Jets
•
Air Leaks
•
Engine Speed (Not too low)
•
Power Supply (Not too low when using long leads on 240 Volt units)
•
Suction Filters (Blocked?)
•
Water supply volume (Not too low)
6