1644526G (406807)
2020-SEP-21
14
1644526G (406807)
2020-SEP-21
15
ADD HYDRAULIC FLUID
Use an ISO 32 grade hydraulic fluid which contains corrosion and oxidation inhibitors and a foam depres
-
sant. This is approximately the equivalent of SAE 10W or lighter weight oil. Initially fill the reservoir
with the quantities given below. DO NOT OVERFILL THE RESERVOIR!
KEEP THE OIL CLEAN! USE CLEAN CONTAINERS, FUNNELS AND OTHER
EQUIPMENT!
HOIST MODEL
RESERVOIR SIZE
FLUID REQUIRED
B-5 (BERT)
15 QUARTS
10 QUARTS
C-8 (CHARLIE)
15 QUARTS
10 QUARTS
D-9 (DANIEL)
15 QUARTS
10 QUARTS
D-10 (DAVID)
6 GALLONS
4 GALLONS
D-15 (ERNIE)
6 GALLONS
4 GALLONS
F-18 (FLOYD)
8 GALLONS
5.5 GALLONS
NOTE: If the pump does not pump oil, pressurize the reservoir and engage the pump with the engine at
slow idle. Once the pump is working, release the pressure and install the breather cap.
For the B-5 (Bert) model hoist, fully raise and lower the hoist several times to remove air from the cylinder
and hoses. For C-8 (Charlie), D-9 (Daniel), D-10 (David), E-15 (Ernie), F-18 (Floyd) and H-25 (Henry)
hoist models, fully raise the hoist and hold the hoist control in the `RAISE’ position for 20 to 30 seconds.
This will remove the air that is inside the cylinder(s). Lower the hoist and check the fluid level in the res
-
ervoir; the reservoir should be 2/3 full with the body down.
With normal use and working conditions the hydraulic oil should be changed annually. The breather cap
should be cleaned every time the hydraulic oil is changed. With heavy use or very dusty working condi-
tions the hydraulic oil should be changed more often.
ELECTRIC POWER UNIT MOUNTING - GENERAL
The electric power unit should be mounted close behind the cab, either inside or outside the truck frame.
After determining where to mount the power unit, bolt one mounting angle to the power unit using the
3/8 x 1 hex head cap screws, tightening to 24 to 26 lb-ft. (See Fig. 11.) Clamp the mounting bracket to the
truck frame. Clamp the second mounting angle to the truck frame so it supports the far end of the reservoir.
Insert a rubber pad between the mounting angle and the reservoir; and secure it in place with a tie strap.
Mark the truck frame for drilling using the pump mounting angles as guides.
CAUTION: BE CAREFUL OF BRAKELINES, WIRING, ETC. INSIDE THE
TRUCK FRAME WHEN DRILLING THE TRUCK FRAME.
Drill 17/32” holes in the truck frame and bolt the reservoir/valve assembly in place using 1/2 x 2 cap
screws and hex lock nuts, tightening to 90 to 100 lb-ft.
For rated performance, the voltage at the power unit must be a minimum of 12VDC. This should be mea-
sured between the large terminal of the start solenoid (where the battery cable is connected) and the power
unit base. NOTE: Grounding of the power unit is just as important as the installation of the positive battery
cable. It is easier to get a good ground by using a second battery cable.
Connect the large terminal on the motor start solenoid to the positive terminal on the battery with a #0
gauge battery cable. Connect the negative terminal on the battery to the grounding hole on the power unit
with a #0 gauge battery cable. See Figure 12. Check the voltage between the large terminal on the start
solenoid and the power unit base.
Fig. 11
ELECTRIC
POWER UNIT
MOUNTING
ANGLE
RUBBER PAD
TIE STRAP
